feat: added contract-read
5846ad3d
3 file(s) · +771 −67
| 1 | 1 | import { mkdir, copyFile, readFile, writeFile } from "node:fs/promises"; |
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| 2 | 2 | import { existsSync } from "node:fs"; |
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| 3 | - | import { join } from "node:path"; |
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| 4 | 3 | ||
| 5 | 4 | async function buildComponents() { |
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| 6 | - | console.log("🔨 Building components..."); |
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| 5 | + | console.log("🔨 Building components..."); |
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| 7 | 6 | ||
| 8 | - | // Ensure dist/components directory exists |
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| 9 | - | const distComponentsDir = "dist/components"; |
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| 10 | - | if (!existsSync(distComponentsDir)) { |
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| 11 | - | await mkdir(distComponentsDir, { recursive: true }); |
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| 12 | - | } |
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| 7 | + | // Ensure dist/components directory exists |
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| 8 | + | const distComponentsDir = "dist/components"; |
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| 9 | + | if (!existsSync(distComponentsDir)) { |
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| 10 | + | await mkdir(distComponentsDir, { recursive: true }); |
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| 11 | + | } |
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| 13 | 12 | ||
| 14 | - | // Copy connect-wallet.js as-is (no dependencies) |
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| 15 | - | await copyFile( |
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| 16 | - | "src/components/connect-wallet.js", |
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| 17 | - | "dist/components/connect-wallet.js" |
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| 18 | - | ); |
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| 19 | - | console.log("✅ Copied connect-wallet.js"); |
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| 13 | + | // Copy connect-wallet.js as-is (no dependencies) |
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| 14 | + | await copyFile( |
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| 15 | + | "src/components/connect-wallet.js", |
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| 16 | + | "dist/components/connect-wallet.js", |
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| 17 | + | ); |
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| 18 | + | console.log("✅ Copied connect-wallet.js"); |
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| 20 | 19 | ||
| 21 | - | // Bundle contract-call.js with its dependencies |
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| 22 | - | const result = await Bun.build({ |
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| 23 | - | entrypoints: ["src/components/contract-call.js"], |
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| 24 | - | target: "browser", |
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| 25 | - | format: "esm", |
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| 26 | - | minify: false, |
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| 27 | - | sourcemap: "none", |
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| 28 | - | splitting: false, |
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| 29 | - | outdir: "dist/components", |
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| 30 | - | naming: "[dir]/[name].[ext]", |
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| 31 | - | external: [], // Bundle all dependencies |
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| 32 | - | plugins: [ |
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| 33 | - | { |
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| 34 | - | name: "Keep JSDocs", |
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| 35 | - | setup(build) { |
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| 36 | - | build.onLoad({ filter: /\.(js)$/ }, async ({ path }) => { |
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| 37 | - | let text = await Bun.file(path).text(); |
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| 38 | - | // Replace '/**' with '/*! *' to mark comments as "important" for minifiers |
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| 39 | - | let contents = text.replaceAll('/**', '/*! *'); |
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| 40 | - | return { contents, loader: 'js' }; |
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| 41 | - | }); |
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| 42 | - | }, |
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| 43 | - | }, |
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| 44 | - | ], |
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| 45 | - | }); |
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| 20 | + | // Helper function to bundle and reorganize component with dependencies |
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| 21 | + | async function bundleComponent(componentName: string, className: string) { |
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| 22 | + | const result = await Bun.build({ |
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| 23 | + | entrypoints: [`src/components/${componentName}.js`], |
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| 24 | + | target: "browser", |
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| 25 | + | format: "esm", |
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| 26 | + | minify: false, |
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| 27 | + | sourcemap: "none", |
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| 28 | + | splitting: false, |
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| 29 | + | outdir: "dist/components", |
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| 30 | + | naming: "[dir]/[name].[ext]", |
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| 31 | + | external: [], // Bundle all dependencies |
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| 32 | + | plugins: [ |
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| 33 | + | { |
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| 34 | + | name: "Keep JSDocs", |
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| 35 | + | setup(build) { |
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| 36 | + | build.onLoad({ filter: /\.(js)$/ }, async ({ path }) => { |
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| 37 | + | let text = await Bun.file(path).text(); |
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| 38 | + | // Replace '/**' with '/*! *' to mark comments as "important" for minifiers |
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| 39 | + | let contents = text.replaceAll("/**", "/*! *"); |
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| 40 | + | return { contents, loader: "js" }; |
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| 41 | + | }); |
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| 42 | + | }, |
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| 43 | + | }, |
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| 44 | + | ], |
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| 45 | + | }); |
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| 46 | 46 | ||
| 47 | - | if (!result.success) { |
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| 48 | - | console.error("❌ Build failed:"); |
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| 49 | - | for (const log of result.logs) { |
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| 50 | - | console.error(log); |
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| 51 | - | } |
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| 52 | - | process.exit(1); |
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| 53 | - | } |
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| 47 | + | if (!result.success) { |
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| 48 | + | console.error(`❌ Build failed for ${componentName}:`); |
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| 49 | + | for (const log of result.logs) { |
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| 50 | + | console.error(log); |
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| 51 | + | } |
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| 52 | + | process.exit(1); |
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| 53 | + | } |
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| 54 | 54 | ||
| 55 | - | console.log("✅ Bundled contract-call.js with dependencies"); |
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| 55 | + | console.log(`✅ Bundled ${componentName}.js with dependencies`); |
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| 56 | 56 | ||
| 57 | - | // Read the bundled file |
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| 58 | - | const bundledContent = await readFile("dist/components/contract-call.js", "utf8"); |
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| 57 | + | // Read the bundled file |
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| 58 | + | const bundledContent = await readFile( |
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| 59 | + | `dist/components/${componentName}.js`, |
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| 60 | + | "utf8", |
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| 61 | + | ); |
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| 59 | 62 | ||
| 60 | - | // Split content to move dependencies to bottom |
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| 61 | - | const lines = bundledContent.split('\n'); |
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| 62 | - | const componentStartIndex = lines.findIndex(line => |
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| 63 | - | line.includes('class ContractCall extends HTMLElement') |
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| 64 | - | ); |
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| 63 | + | // Split content to move dependencies to bottom |
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| 64 | + | const lines = bundledContent.split("\n"); |
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| 65 | + | const componentStartIndex = lines.findIndex((line) => |
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| 66 | + | line.includes(`class ${className} extends HTMLElement`), |
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| 67 | + | ); |
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| 65 | 68 | ||
| 66 | - | if (componentStartIndex > 0) { |
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| 67 | - | // Dependencies are at the top (before the component class) |
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| 68 | - | const dependencies = lines.slice(0, componentStartIndex).join('\n'); |
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| 69 | - | const componentCode = lines.slice(componentStartIndex).join('\n'); |
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| 69 | + | if (componentStartIndex > 0) { |
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| 70 | + | // Dependencies are at the top (before the component class) |
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| 71 | + | const dependencies = lines.slice(0, componentStartIndex).join("\n"); |
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| 72 | + | const componentCode = lines.slice(componentStartIndex).join("\n"); |
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| 70 | 73 | ||
| 71 | - | // Create new content with component first, then dependencies |
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| 72 | - | const newContent = `// User-editable contract call component |
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| 74 | + | // Create new content with component first, then dependencies |
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| 75 | + | const newContent = `// User-editable ${componentName} component |
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| 73 | 76 | // @noble/hashes are bundled at the bottom of this file |
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| 74 | 77 | ||
| 75 | 78 | ${componentCode} |
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| 80 | 83 | ||
| 81 | 84 | ${dependencies}`; |
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| 82 | 85 | ||
| 83 | - | await writeFile("dist/components/contract-call.js", newContent, "utf8"); |
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| 84 | - | console.log("✅ Reorganized contract-call.js (component code first, dependencies at bottom)"); |
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| 85 | - | } |
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| 86 | + | await writeFile( |
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| 87 | + | `dist/components/${componentName}.js`, |
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| 88 | + | newContent, |
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| 89 | + | "utf8", |
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| 90 | + | ); |
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| 91 | + | console.log( |
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| 92 | + | `✅ Reorganized ${componentName}.js (component code first, dependencies at bottom)`, |
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| 93 | + | ); |
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| 94 | + | } |
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| 95 | + | } |
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| 96 | + | ||
| 97 | + | // Bundle contract-call.js with its dependencies |
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| 98 | + | await bundleComponent("contract-call", "ContractCall"); |
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| 86 | 99 | ||
| 87 | - | console.log("🎉 Component build complete!"); |
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| 100 | + | // Bundle contract-read.js with its dependencies |
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| 101 | + | await bundleComponent("contract-read", "ContractRead"); |
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| 102 | + | ||
| 103 | + | console.log("🎉 Component build complete!"); |
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| 88 | 104 | } |
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| 89 | 105 | ||
| 90 | 106 | buildComponents().catch(console.error); |
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| 60 | 60 | abi='[{"inputs":[],"name":"increment","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"number","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"newNumber","type":"uint256"}],"name":"setNumber","outputs":[],"stateMutability":"nonpayable","type":"function"}]' |
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| 61 | 61 | button-text="Increment" |
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| 62 | 62 | ></contract-call> |
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| 63 | - | <contract-call |
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| 63 | + | </div> |
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| 64 | + | <div class="text-xl text-[#ccc]">contract-call</div> |
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| 65 | + | <div class="bg-[#1e1e1e] border border-[#333] rounded-sm p-2 text-xs text-[#888] mt-2 text-center"> |
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| 66 | + | npx norns-ui@latest add contract-call |
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| 67 | + | </div> |
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| 68 | + | </div> |
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| 69 | + | <div class="flex flex-col items-start gap-4"> |
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| 70 | + | <div class="border border-white rounded-md sm:w-[400px] sm:h-[400px] h-[300px] w-[300px] p-4 flex flex-col gap-4 items-center justify-center"> |
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| 71 | + | <contract-read |
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| 64 | 72 | contract-address="0x8C9EC9c13812C7F9F26AB934d4bF36206240dDA8" |
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| 65 | 73 | chain-id="11155111" |
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| 66 | 74 | method-name="number" |
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| 75 | + | rpc-url="https://sepolia.drpc.org" |
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| 67 | 76 | abi='[{"inputs":[],"name":"increment","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"number","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"newNumber","type":"uint256"}],"name":"setNumber","outputs":[],"stateMutability":"nonpayable","type":"function"}]' |
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| 68 | 77 | button-text="Current Count" |
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| 69 | - | ></contract-call> |
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| 78 | + | ></contract-read> |
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| 70 | 79 | </div> |
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| 71 | - | <div class="text-xl text-[#ccc]">contract-call</div> |
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| 80 | + | <div class="text-xl text-[#ccc]">contract-read</div> |
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| 72 | 81 | <div class="bg-[#1e1e1e] border border-[#333] rounded-sm p-2 text-xs text-[#888] mt-2 text-center"> |
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| 73 | - | npx norns-ui@latest add contract-call |
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| 82 | + | npx norns-ui@latest add contract-read |
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| 74 | 83 | </div> |
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| 75 | 84 | </div> |
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| 76 | 85 | </div> |
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| 78 | 87 | ||
| 79 | 88 | <script src="../src/components/connect-wallet.js"></script> |
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| 80 | 89 | <script src="../src/components/contract-call.js"></script> |
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| 90 | + | <script src="../src/components/contract-read.js"></script> |
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| 81 | 91 | </body> |
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| 82 | 92 | </html> |
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| 1 | + | import { keccak_256 } from "@noble/hashes/sha3.js"; |
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| 2 | + | ||
| 3 | + | class ContractRead extends HTMLElement { |
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| 4 | + | /** |
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| 5 | + | * ContractRead Web Component |
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| 6 | + | * |
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| 7 | + | * A custom HTML element for reading state from Ethereum smart contracts. |
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| 8 | + | * Automatically loads and displays read-only contract state on mount. |
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| 9 | + | * Supports both wallet integration and direct RPC calls. |
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| 10 | + | * |
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| 11 | + | * @example |
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| 12 | + | * Basic usage with inline ABI and RPC URL: |
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| 13 | + | * ```html |
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| 14 | + | * <contract-read |
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| 15 | + | * contract-address="0x1234567890123456789012345678901234567890" |
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| 16 | + | * method-name="balanceOf" |
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| 17 | + | * method-args='["0xabcdef1234567890123456789012345678901234"]' |
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| 18 | + | * rpc-url="https://eth.llamarpc.com" |
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| 19 | + | * abi='[{"type":"function","name":"balanceOf","inputs":[{"type":"address","name":"owner"}],"outputs":[{"type":"uint256","name":""}],"stateMutability":"view"}]'> |
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| 20 | + | * </contract-read> |
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| 21 | + | * ``` |
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| 22 | + | * |
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| 23 | + | * @example |
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| 24 | + | * Using ABI from URL with wallet: |
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| 25 | + | * ```html |
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| 26 | + | * <contract-read |
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| 27 | + | * contract-address="0x1234567890123456789012345678901234567890" |
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| 28 | + | * method-name="totalSupply" |
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| 29 | + | * abi-url="https://api.example.com/contract-abi.json"> |
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| 30 | + | * </contract-read> |
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| 31 | + | * ``` |
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| 32 | + | * |
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| 33 | + | * @example |
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| 34 | + | * Custom styling: |
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| 35 | + | * ```html |
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| 36 | + | * <contract-read |
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| 37 | + | * contract-address="0x1234567890123456789012345678901234567890" |
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| 38 | + | * method-name="getName" |
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| 39 | + | * abi-url="/abi/token.json" |
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| 40 | + | * rpc-url="https://eth.llamarpc.com" |
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| 41 | + | * background="#1a1a1a" |
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| 42 | + | * foreground="#ffffff" |
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| 43 | + | * primary="#00ff88" |
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| 44 | + | * border-radius="8px" |
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| 45 | + | * error-color="#ff4444" |
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| 46 | + | * success-color="#44ff44"> |
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| 47 | + | * </contract-read> |
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| 48 | + | * ``` |
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| 49 | + | * |
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| 50 | + | * Attributes: |
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| 51 | + | * - contract-address (required): The Ethereum contract address |
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| 52 | + | * - method-name (required): The contract method to call |
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| 53 | + | * - method-args: JSON array of method arguments (default: []) |
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| 54 | + | * - abi: JSON string of the contract ABI |
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| 55 | + | * - abi-url: URL to fetch the contract ABI from |
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| 56 | + | * - rpc-url: RPC URL for direct calls (used when wallet is not available) |
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| 57 | + | * - chain-id: Ethereum chain ID in hex format (default: "0x1" for mainnet) |
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| 58 | + | * - background: Background color (default: "#232323") |
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| 59 | + | * - foreground: Text color (default: "#ffffff") |
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| 60 | + | * - primary: Primary color (default: "#5F8787") |
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| 61 | + | * - border-radius: Border radius for UI elements (default: "4px") |
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| 62 | + | * - error-color: Color for error messages (default: "#E78A53") |
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| 63 | + | * - success-color: Color for success messages (default: "#5F8787") |
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| 64 | + | * |
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| 65 | + | * Events: |
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| 66 | + | * - abi-loaded: Fired when ABI is successfully loaded from URL |
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| 67 | + | * - abi-error: Fired when ABI loading fails |
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| 68 | + | * - contract-read-success: Fired when contract read succeeds |
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| 69 | + | * - contract-read-error: Fired when contract read fails |
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| 70 | + | * |
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| 71 | + | * Requirements: |
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| 72 | + | * - @noble/hashes library for keccak256 hashing |
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| 73 | + | * - Either a wallet extension (MetaMask) or rpc-url attribute |
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| 74 | + | * |
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| 75 | + | * Notes: |
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| 76 | + | * - Only supports read-only methods (view/pure) |
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| 77 | + | * - Automatically loads state on component mount |
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| 78 | + | * - Uses wallet if available, falls back to RPC URL |
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| 79 | + | * - Simplified ABI encoding/decoding (use ethers.js/web3.js for production) |
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| 80 | + | */ |
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| 81 | + | ||
| 82 | + | // Constructor and lifecycle methods |
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| 83 | + | constructor() { |
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| 84 | + | super(); |
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| 85 | + | this.attachShadow({ mode: "open" }); |
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| 86 | + | this.loading = false; |
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| 87 | + | this.result = null; |
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| 88 | + | this.error = null; |
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| 89 | + | this.abi = null; |
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| 90 | + | this.methodData = null; |
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| 91 | + | this.contractAddress = ""; |
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| 92 | + | this.chainId = "0x1"; |
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| 93 | + | this.methodName = ""; |
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| 94 | + | this.methodArgs = []; |
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| 95 | + | this.abiUrl = ""; |
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| 96 | + | this.rpcUrl = ""; |
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| 97 | + | this.isReadOnly = true; |
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| 98 | + | } |
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| 99 | + | ||
| 100 | + | static get observedAttributes() { |
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| 101 | + | return [ |
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| 102 | + | "contract-address", |
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| 103 | + | "chain-id", |
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| 104 | + | "method-name", |
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| 105 | + | "method-args", |
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| 106 | + | "abi-url", |
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| 107 | + | "abi", |
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| 108 | + | "rpc-url", |
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| 109 | + | "background", |
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| 110 | + | "foreground", |
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| 111 | + | "primary", |
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| 112 | + | "border-radius", |
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| 113 | + | "error-color", |
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| 114 | + | "success-color", |
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| 115 | + | ]; |
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| 116 | + | } |
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| 117 | + | ||
| 118 | + | attributeChangedCallback(name, oldValue, newValue) { |
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| 119 | + | if (oldValue === newValue) return; |
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| 120 | + | ||
| 121 | + | switch (name) { |
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| 122 | + | case "contract-address": |
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| 123 | + | this.contractAddress = newValue || ""; |
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| 124 | + | break; |
|
| 125 | + | case "chain-id": |
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| 126 | + | this.chainId = this.normalizeChainId(newValue); |
|
| 127 | + | break; |
|
| 128 | + | case "method-name": |
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| 129 | + | this.methodName = newValue || ""; |
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| 130 | + | this.parseMethodFromAbi(); |
|
| 131 | + | break; |
|
| 132 | + | case "method-args": |
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| 133 | + | try { |
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| 134 | + | this.methodArgs = newValue ? JSON.parse(newValue) : []; |
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| 135 | + | } catch (e) { |
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| 136 | + | console.error("Invalid method-args JSON:", e); |
|
| 137 | + | this.methodArgs = []; |
|
| 138 | + | } |
|
| 139 | + | break; |
|
| 140 | + | case "abi-url": |
|
| 141 | + | this.abiUrl = newValue || ""; |
|
| 142 | + | if (this.abiUrl) { |
|
| 143 | + | this.fetchAbi(); |
|
| 144 | + | } |
|
| 145 | + | break; |
|
| 146 | + | case "abi": |
|
| 147 | + | try { |
|
| 148 | + | this.abi = newValue ? JSON.parse(newValue) : null; |
|
| 149 | + | this.parseMethodFromAbi(); |
|
| 150 | + | } catch (e) { |
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| 151 | + | console.error("Invalid ABI JSON:", e); |
|
| 152 | + | this.abi = null; |
|
| 153 | + | } |
|
| 154 | + | break; |
|
| 155 | + | case "rpc-url": |
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| 156 | + | this.rpcUrl = newValue || ""; |
|
| 157 | + | break; |
|
| 158 | + | default: |
|
| 159 | + | if ( |
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| 160 | + | [ |
|
| 161 | + | "background", |
|
| 162 | + | "foreground", |
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| 163 | + | "primary", |
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| 164 | + | "border-radius", |
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| 165 | + | "error-color", |
|
| 166 | + | "success-color", |
|
| 167 | + | ].includes(name) |
|
| 168 | + | ) { |
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| 169 | + | this.render(); |
|
| 170 | + | } |
|
| 171 | + | } |
|
| 172 | + | } |
|
| 173 | + | ||
| 174 | + | connectedCallback() { |
|
| 175 | + | this.contractAddress = this.getAttribute("contract-address") || ""; |
|
| 176 | + | const chainIdAttr = this.getAttribute("chain-id"); |
|
| 177 | + | this.chainId = this.normalizeChainId(chainIdAttr); |
|
| 178 | + | this.methodName = this.getAttribute("method-name") || ""; |
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| 179 | + | this.abiUrl = this.getAttribute("abi-url") || ""; |
|
| 180 | + | this.rpcUrl = this.getAttribute("rpc-url") || ""; |
|
| 181 | + | ||
| 182 | + | try { |
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| 183 | + | const methodArgsAttr = this.getAttribute("method-args"); |
|
| 184 | + | this.methodArgs = methodArgsAttr ? JSON.parse(methodArgsAttr) : []; |
|
| 185 | + | } catch (e) { |
|
| 186 | + | console.error("Invalid method-args JSON:", e); |
|
| 187 | + | this.methodArgs = []; |
|
| 188 | + | } |
|
| 189 | + | ||
| 190 | + | try { |
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| 191 | + | const abiAttr = this.getAttribute("abi"); |
|
| 192 | + | this.abi = abiAttr ? JSON.parse(abiAttr) : null; |
|
| 193 | + | } catch (e) { |
|
| 194 | + | console.error("Invalid ABI JSON:", e); |
|
| 195 | + | this.abi = null; |
|
| 196 | + | } |
|
| 197 | + | ||
| 198 | + | if (this.abiUrl && !this.abi) { |
|
| 199 | + | this.fetchAbi().then(() => { |
|
| 200 | + | // Auto-call contract after ABI is loaded |
|
| 201 | + | if (this.methodData) { |
|
| 202 | + | this.readContract(); |
|
| 203 | + | } |
|
| 204 | + | }); |
|
| 205 | + | } else if (this.abi) { |
|
| 206 | + | this.parseMethodFromAbi(); |
|
| 207 | + | // Auto-call contract on mount |
|
| 208 | + | if (this.methodData) { |
|
| 209 | + | this.readContract(); |
|
| 210 | + | } |
|
| 211 | + | } |
|
| 212 | + | ||
| 213 | + | this.render(); |
|
| 214 | + | } |
|
| 215 | + | ||
| 216 | + | // ABI and method parsing |
|
| 217 | + | async fetchAbi() { |
|
| 218 | + | if (!this.abiUrl) return; |
|
| 219 | + | ||
| 220 | + | try { |
|
| 221 | + | this.loading = true; |
|
| 222 | + | this.render(); |
|
| 223 | + | ||
| 224 | + | const response = await fetch(this.abiUrl); |
|
| 225 | + | if (!response.ok) { |
|
| 226 | + | throw new Error(`Failed to fetch ABI: ${response.statusText}`); |
|
| 227 | + | } |
|
| 228 | + | ||
| 229 | + | this.abi = await response.json(); |
|
| 230 | + | this.parseMethodFromAbi(); |
|
| 231 | + | this.loading = false; |
|
| 232 | + | this.render(); |
|
| 233 | + | ||
| 234 | + | this.dispatchEvent( |
|
| 235 | + | new CustomEvent("abi-loaded", { |
|
| 236 | + | detail: { abi: this.abi }, |
|
| 237 | + | }), |
|
| 238 | + | ); |
|
| 239 | + | } catch (error) { |
|
| 240 | + | console.error("Failed to fetch ABI:", error); |
|
| 241 | + | this.error = error.message; |
|
| 242 | + | this.loading = false; |
|
| 243 | + | this.render(); |
|
| 244 | + | ||
| 245 | + | this.dispatchEvent( |
|
| 246 | + | new CustomEvent("abi-error", { |
|
| 247 | + | detail: { error: error.message }, |
|
| 248 | + | }), |
|
| 249 | + | ); |
|
| 250 | + | } |
|
| 251 | + | } |
|
| 252 | + | ||
| 253 | + | parseMethodFromAbi() { |
|
| 254 | + | if (!this.abi || !this.methodName) return; |
|
| 255 | + | ||
| 256 | + | const method = this.abi.find( |
|
| 257 | + | (item) => item.type === "function" && item.name === this.methodName, |
|
| 258 | + | ); |
|
| 259 | + | ||
| 260 | + | if (!method) { |
|
| 261 | + | this.error = `Method '${this.methodName}' not found in ABI`; |
|
| 262 | + | this.render(); |
|
| 263 | + | return; |
|
| 264 | + | } |
|
| 265 | + | ||
| 266 | + | this.methodData = method; |
|
| 267 | + | this.isReadOnly = |
|
| 268 | + | method.stateMutability === "view" || method.stateMutability === "pure"; |
|
| 269 | + | this.error = null; |
|
| 270 | + | this.render(); |
|
| 271 | + | } |
|
| 272 | + | ||
| 273 | + | /** |
|
| 274 | + | * Converts a numeric chain ID to hex format |
|
| 275 | + | * @param {string|number} chainId - Chain ID in numeric or hex format |
|
| 276 | + | * @returns {string} Chain ID in hex format (e.g., "0x2105") |
|
| 277 | + | */ |
|
| 278 | + | normalizeChainId(chainId) { |
|
| 279 | + | if (!chainId) return "0x1"; |
|
| 280 | + | ||
| 281 | + | const chainIdStr = String(chainId); |
|
| 282 | + | ||
| 283 | + | // If it's already in hex format (starts with 0x), return as-is |
|
| 284 | + | if (chainIdStr.startsWith("0x")) { |
|
| 285 | + | return chainIdStr.toLowerCase(); |
|
| 286 | + | } |
|
| 287 | + | ||
| 288 | + | // Convert numeric string to hex |
|
| 289 | + | const numericChainId = parseInt(chainIdStr, 10); |
|
| 290 | + | if (isNaN(numericChainId)) { |
|
| 291 | + | console.warn(`Invalid chain ID: ${chainId}, defaulting to 0x1`); |
|
| 292 | + | return "0x1"; |
|
| 293 | + | } |
|
| 294 | + | ||
| 295 | + | return `0x${numericChainId.toString(16)}`; |
|
| 296 | + | } |
|
| 297 | + | ||
| 298 | + | // Contract interaction methods |
|
| 299 | + | async readContract() { |
|
| 300 | + | if (!this.contractAddress || !this.methodName || !this.methodData) { |
|
| 301 | + | this.error = "Missing required contract information"; |
|
| 302 | + | this.render(); |
|
| 303 | + | return; |
|
| 304 | + | } |
|
| 305 | + | ||
| 306 | + | try { |
|
| 307 | + | this.loading = true; |
|
| 308 | + | this.result = null; |
|
| 309 | + | this.error = null; |
|
| 310 | + | this.render(); |
|
| 311 | + | ||
| 312 | + | // Encode method call |
|
| 313 | + | const methodSignature = this.encodeMethodSignature(); |
|
| 314 | + | const encodedArgs = this.encodeArguments(); |
|
| 315 | + | const data = methodSignature + encodedArgs; |
|
| 316 | + | ||
| 317 | + | let result; |
|
| 318 | + | ||
| 319 | + | // Try to use wallet first, fall back to RPC URL |
|
| 320 | + | if (window.ethereum) { |
|
| 321 | + | try { |
|
| 322 | + | result = await window.ethereum.request({ |
|
| 323 | + | method: "eth_call", |
|
| 324 | + | params: [ |
|
| 325 | + | { |
|
| 326 | + | to: this.contractAddress, |
|
| 327 | + | data: data, |
|
| 328 | + | }, |
|
| 329 | + | "latest", |
|
| 330 | + | ], |
|
| 331 | + | }); |
|
| 332 | + | } catch (walletError) { |
|
| 333 | + | console.warn("Wallet call failed, trying RPC URL:", walletError); |
|
| 334 | + | if (this.rpcUrl) { |
|
| 335 | + | result = await this.callViaRpc(data); |
|
| 336 | + | } else { |
|
| 337 | + | throw walletError; |
|
| 338 | + | } |
|
| 339 | + | } |
|
| 340 | + | } else if (this.rpcUrl) { |
|
| 341 | + | // No wallet available, use RPC URL |
|
| 342 | + | result = await this.callViaRpc(data); |
|
| 343 | + | } else { |
|
| 344 | + | throw new Error( |
|
| 345 | + | "No wallet extension found and no RPC URL provided. Please install MetaMask or provide an rpc-url attribute.", |
|
| 346 | + | ); |
|
| 347 | + | } |
|
| 348 | + | ||
| 349 | + | this.result = this.decodeResult(result); |
|
| 350 | + | this.loading = false; |
|
| 351 | + | this.render(); |
|
| 352 | + | ||
| 353 | + | this.dispatchEvent( |
|
| 354 | + | new CustomEvent("contract-read-success", { |
|
| 355 | + | detail: { |
|
| 356 | + | result: this.result, |
|
| 357 | + | method: this.methodName, |
|
| 358 | + | args: this.methodArgs, |
|
| 359 | + | }, |
|
| 360 | + | }), |
|
| 361 | + | ); |
|
| 362 | + | } catch (error) { |
|
| 363 | + | console.error("Contract read failed:", error); |
|
| 364 | + | this.error = error.message; |
|
| 365 | + | this.loading = false; |
|
| 366 | + | this.render(); |
|
| 367 | + | ||
| 368 | + | this.dispatchEvent( |
|
| 369 | + | new CustomEvent("contract-read-error", { |
|
| 370 | + | detail: { error: error.message }, |
|
| 371 | + | }), |
|
| 372 | + | ); |
|
| 373 | + | } |
|
| 374 | + | } |
|
| 375 | + | ||
| 376 | + | async callViaRpc(data) { |
|
| 377 | + | if (!this.rpcUrl) { |
|
| 378 | + | throw new Error("RPC URL not configured"); |
|
| 379 | + | } |
|
| 380 | + | ||
| 381 | + | const response = await fetch(this.rpcUrl, { |
|
| 382 | + | method: "POST", |
|
| 383 | + | headers: { |
|
| 384 | + | "Content-Type": "application/json", |
|
| 385 | + | }, |
|
| 386 | + | body: JSON.stringify({ |
|
| 387 | + | jsonrpc: "2.0", |
|
| 388 | + | method: "eth_call", |
|
| 389 | + | params: [ |
|
| 390 | + | { |
|
| 391 | + | to: this.contractAddress, |
|
| 392 | + | data: data, |
|
| 393 | + | }, |
|
| 394 | + | "latest", |
|
| 395 | + | ], |
|
| 396 | + | id: 1, |
|
| 397 | + | }), |
|
| 398 | + | }); |
|
| 399 | + | ||
| 400 | + | if (!response.ok) { |
|
| 401 | + | throw new Error(`RPC request failed: ${response.statusText}`); |
|
| 402 | + | } |
|
| 403 | + | ||
| 404 | + | const json = await response.json(); |
|
| 405 | + | ||
| 406 | + | if (json.error) { |
|
| 407 | + | throw new Error(`RPC error: ${json.error.message}`); |
|
| 408 | + | } |
|
| 409 | + | ||
| 410 | + | return json.result; |
|
| 411 | + | } |
|
| 412 | + | ||
| 413 | + | // Encoding and decoding methods |
|
| 414 | + | encodeMethodSignature() { |
|
| 415 | + | const inputs = this.methodData.inputs || []; |
|
| 416 | + | const types = inputs.map((input) => input.type).join(","); |
|
| 417 | + | const signature = `${this.methodName}(${types})`; |
|
| 418 | + | ||
| 419 | + | // Use proper keccak256 hash - for production use a crypto library |
|
| 420 | + | const hash = this.keccak256(signature); |
|
| 421 | + | return "0x" + hash.slice(0, 8); // First 4 bytes (function selector) |
|
| 422 | + | } |
|
| 423 | + | ||
| 424 | + | encodeArguments() { |
|
| 425 | + | const inputs = this.methodData.inputs || []; |
|
| 426 | + | ||
| 427 | + | // If method has no inputs or no args provided, return empty string |
|
| 428 | + | if (!inputs.length || !this.methodArgs.length) return ""; |
|
| 429 | + | ||
| 430 | + | // This is a simplified encoding - in production, use ethers.js or web3.js |
|
| 431 | + | let encoded = ""; |
|
| 432 | + | ||
| 433 | + | for (let i = 0; i < this.methodArgs.length; i++) { |
|
| 434 | + | const arg = this.methodArgs[i]; |
|
| 435 | + | const input = inputs[i]; |
|
| 436 | + | ||
| 437 | + | if (!input) continue; |
|
| 438 | + | ||
| 439 | + | encoded += this.encodeValue(arg, input.type); |
|
| 440 | + | } |
|
| 441 | + | ||
| 442 | + | return encoded; |
|
| 443 | + | } |
|
| 444 | + | ||
| 445 | + | encodeValue(value, type) { |
|
| 446 | + | // Simplified encoding - use proper ABI encoding library in production |
|
| 447 | + | if (type === "uint256" || type === "uint") { |
|
| 448 | + | return BigInt(value).toString(16).padStart(64, "0"); |
|
| 449 | + | } else if (type === "address") { |
|
| 450 | + | return value.toLowerCase().replace("0x", "").padStart(64, "0"); |
|
| 451 | + | } else if (type === "string") { |
|
| 452 | + | const hex = Array.from(new TextEncoder().encode(value)) |
|
| 453 | + | .map((b) => b.toString(16).padStart(2, "0")) |
|
| 454 | + | .join(""); |
|
| 455 | + | return hex.padEnd(64, "0"); |
|
| 456 | + | } |
|
| 457 | + | return "".padStart(64, "0"); |
|
| 458 | + | } |
|
| 459 | + | ||
| 460 | + | decodeResult(result) { |
|
| 461 | + | if (!result || result === "0x") return null; |
|
| 462 | + | ||
| 463 | + | // Simplified decoding - use proper ABI decoding library in production |
|
| 464 | + | const outputs = this.methodData.outputs || []; |
|
| 465 | + | if (outputs.length === 0) return result; |
|
| 466 | + | ||
| 467 | + | const output = outputs[0]; |
|
| 468 | + | const data = result.replace("0x", ""); |
|
| 469 | + | ||
| 470 | + | if (output.type === "uint256" || output.type === "uint") { |
|
| 471 | + | return BigInt("0x" + data).toString(); |
|
| 472 | + | } else if (output.type === "address") { |
|
| 473 | + | return "0x" + data.slice(-40); |
|
| 474 | + | } else if (output.type === "string") { |
|
| 475 | + | // Simplified string decoding |
|
| 476 | + | try { |
|
| 477 | + | const bytes = |
|
| 478 | + | data.match(/.{2}/g)?.map((byte) => parseInt(byte, 16)) || []; |
|
| 479 | + | return new TextDecoder().decode(new Uint8Array(bytes)); |
|
| 480 | + | } catch (e) { |
|
| 481 | + | console.log(e); |
|
| 482 | + | return data; |
|
| 483 | + | } |
|
| 484 | + | } |
|
| 485 | + | ||
| 486 | + | return result; |
|
| 487 | + | } |
|
| 488 | + | ||
| 489 | + | keccak256(input) { |
|
| 490 | + | const inputBytes = new TextEncoder().encode(input); |
|
| 491 | + | const hashBytes = keccak_256(inputBytes); |
|
| 492 | + | return Array.from(hashBytes) |
|
| 493 | + | .map((b) => b.toString(16).padStart(2, "0")) |
|
| 494 | + | .join(""); |
|
| 495 | + | } |
|
| 496 | + | ||
| 497 | + | // UI helper methods |
|
| 498 | + | getCSSVariable(name, defaultValue) { |
|
| 499 | + | return this.getAttribute(name) || defaultValue; |
|
| 500 | + | } |
|
| 501 | + | ||
| 502 | + | getStatusColor() { |
|
| 503 | + | if (this.error) return this.getCSSVariable("error-color", "#E78A53"); |
|
| 504 | + | if (this.result !== null) |
|
| 505 | + | return this.getCSSVariable("success-color", "#5F8787"); |
|
| 506 | + | return this.getCSSVariable("primary", "#5F8787"); |
|
| 507 | + | } |
|
| 508 | + | ||
| 509 | + | // Render methods |
|
| 510 | + | render() { |
|
| 511 | + | const background = this.getCSSVariable("background", "#232323"); |
|
| 512 | + | const foreground = this.getCSSVariable("foreground", "#ffffff"); |
|
| 513 | + | const primary = this.getCSSVariable("primary", "#5F8787"); |
|
| 514 | + | const borderRadius = this.getCSSVariable("border-radius", "4px"); |
|
| 515 | + | ||
| 516 | + | this.shadowRoot.innerHTML = ` |
|
| 517 | + | <style> |
|
| 518 | + | :host { |
|
| 519 | + | --color-background: ${background}; |
|
| 520 | + | --color-foreground: ${foreground}; |
|
| 521 | + | --color-primary: ${primary}; |
|
| 522 | + | --border-radius: ${borderRadius}; |
|
| 523 | + | display: inline-block; |
|
| 524 | + | font-family: sans-serif; |
|
| 525 | + | } |
|
| 526 | + | ||
| 527 | + | .container { |
|
| 528 | + | display: flex; |
|
| 529 | + | flex-direction: column; |
|
| 530 | + | gap: 12px; |
|
| 531 | + | padding: 16px; |
|
| 532 | + | background: var(--color-background); |
|
| 533 | + | border: 1px solid rgba(255, 255, 255, 0.1); |
|
| 534 | + | border-radius: var(--border-radius); |
|
| 535 | + | color: var(--color-foreground); |
|
| 536 | + | width: 300px; |
|
| 537 | + | box-sizing: border-box; |
|
| 538 | + | } |
|
| 539 | + | ||
| 540 | + | @media (max-width: 768px) { |
|
| 541 | + | .container { |
|
| 542 | + | width: 280px; |
|
| 543 | + | padding: 12px; |
|
| 544 | + | gap: 10px; |
|
| 545 | + | } |
|
| 546 | + | } |
|
| 547 | + | ||
| 548 | + | @media (max-width: 480px) { |
|
| 549 | + | .container { |
|
| 550 | + | width: 260px; |
|
| 551 | + | padding: 10px; |
|
| 552 | + | gap: 8px; |
|
| 553 | + | } |
|
| 554 | + | } |
|
| 555 | + | ||
| 556 | + | @media (max-width: 320px) { |
|
| 557 | + | .container { |
|
| 558 | + | width: 240px; |
|
| 559 | + | padding: 8px; |
|
| 560 | + | gap: 6px; |
|
| 561 | + | } |
|
| 562 | + | } |
|
| 563 | + | ||
| 564 | + | ||
| 565 | + | .contract-info { |
|
| 566 | + | display: flex; |
|
| 567 | + | flex-direction: column; |
|
| 568 | + | gap: 8px; |
|
| 569 | + | font-size: 14px; |
|
| 570 | + | opacity: 0.8; |
|
| 571 | + | } |
|
| 572 | + | ||
| 573 | + | .info-row { |
|
| 574 | + | display: flex; |
|
| 575 | + | flex-direction: column; |
|
| 576 | + | } |
|
| 577 | + | ||
| 578 | + | .info-label { |
|
| 579 | + | font-weight: 600; |
|
| 580 | + | margin-bottom: 4px; |
|
| 581 | + | } |
|
| 582 | + | ||
| 583 | + | .info-value { |
|
| 584 | + | font-family: monospace; |
|
| 585 | + | font-size: 12px; |
|
| 586 | + | overflow: hidden; |
|
| 587 | + | text-overflow: ellipsis; |
|
| 588 | + | white-space: nowrap; |
|
| 589 | + | max-width: 100%; |
|
| 590 | + | } |
|
| 591 | + | ||
| 592 | + | .status { |
|
| 593 | + | font-size: 14px; |
|
| 594 | + | font-family: monospace; |
|
| 595 | + | word-break: break-all; |
|
| 596 | + | color: ${this.getStatusColor()}; |
|
| 597 | + | overflow-wrap: break-word; |
|
| 598 | + | white-space: pre-wrap; |
|
| 599 | + | } |
|
| 600 | + | ||
| 601 | + | .loading { |
|
| 602 | + | display: flex; |
|
| 603 | + | align-items: center; |
|
| 604 | + | gap: 8px; |
|
| 605 | + | color: var(--color-primary); |
|
| 606 | + | } |
|
| 607 | + | ||
| 608 | + | .spinner { |
|
| 609 | + | width: 16px; |
|
| 610 | + | height: 16px; |
|
| 611 | + | border: 2px solid rgba(255, 255, 255, 0.3); |
|
| 612 | + | border-top: 2px solid var(--color-foreground); |
|
| 613 | + | border-radius: 50%; |
|
| 614 | + | animation: spin 1s linear infinite; |
|
| 615 | + | } |
|
| 616 | + | ||
| 617 | + | @keyframes spin { |
|
| 618 | + | from { transform: rotate(0deg); } |
|
| 619 | + | to { transform: rotate(360deg); } |
|
| 620 | + | } |
|
| 621 | + | ||
| 622 | + | .error { |
|
| 623 | + | color: ${this.getCSSVariable("error-color", "#E78A53")}; |
|
| 624 | + | } |
|
| 625 | + | ||
| 626 | + | .success { |
|
| 627 | + | color: ${this.getCSSVariable("success-color", "#5F8787")}; |
|
| 628 | + | } |
|
| 629 | + | ||
| 630 | + | .result-label { |
|
| 631 | + | font-weight: 600; |
|
| 632 | + | margin-bottom: 4px; |
|
| 633 | + | font-size: 14px; |
|
| 634 | + | } |
|
| 635 | + | ||
| 636 | + | .result-value { |
|
| 637 | + | font-family: monospace; |
|
| 638 | + | font-size: 14px; |
|
| 639 | + | color: var(--color-primary); |
|
| 640 | + | } |
|
| 641 | + | </style> |
|
| 642 | + | `; |
|
| 643 | + | ||
| 644 | + | const container = document.createElement("div"); |
|
| 645 | + | container.className = "container"; |
|
| 646 | + | ||
| 647 | + | // Loading state |
|
| 648 | + | if (this.loading) { |
|
| 649 | + | const loadingDiv = document.createElement("div"); |
|
| 650 | + | loadingDiv.className = "loading"; |
|
| 651 | + | loadingDiv.innerHTML = ` |
|
| 652 | + | <div class="spinner"></div> |
|
| 653 | + | <span>Reading contract...</span> |
|
| 654 | + | `; |
|
| 655 | + | container.appendChild(loadingDiv); |
|
| 656 | + | } |
|
| 657 | + | ||
| 658 | + | // Result or error section |
|
| 659 | + | if (this.error) { |
|
| 660 | + | const errorDiv = document.createElement("div"); |
|
| 661 | + | errorDiv.className = "status error"; |
|
| 662 | + | errorDiv.textContent = `Error: ${this.error}`; |
|
| 663 | + | container.appendChild(errorDiv); |
|
| 664 | + | } else if (this.result !== null && !this.loading) { |
|
| 665 | + | const resultDiv = document.createElement("div"); |
|
| 666 | + | resultDiv.className = "info-row"; |
|
| 667 | + | resultDiv.innerHTML = ` |
|
| 668 | + | <span class="result-label">${this.methodName}</span> |
|
| 669 | + | <span class="result-value">${this.result}</span> |
|
| 670 | + | `; |
|
| 671 | + | container.appendChild(resultDiv); |
|
| 672 | + | } |
|
| 673 | + | ||
| 674 | + | this.shadowRoot.appendChild(container); |
|
| 675 | + | } |
|
| 676 | + | } |
|
| 677 | + | ||
| 678 | + | customElements.define("contract-read", ContractRead); |