| 1 | package main |
| 2 | |
| 3 | import ( |
| 4 | "html/template" |
| 5 | "net/http" |
| 6 | ) |
| 7 | |
| 8 | func iiifURL(imageID string) string { |
| 9 | return "https://www.artic.edu/iiif/2/" + imageID + "/full/843,/0/default.jpg" |
| 10 | } |
| 11 | |
| 12 | func sourceURL(id int64) string { |
| 13 | return "https://www.artic.edu/artworks/" + itoa64(id) |
| 14 | } |
| 15 | |
| 16 | func itoa64(v int64) string { |
| 17 | if v == 0 { |
| 18 | return "0" |
| 19 | } |
| 20 | negative := v < 0 |
| 21 | if negative { |
| 22 | v = -v |
| 23 | } |
| 24 | buf := [20]byte{} |
| 25 | i := len(buf) |
| 26 | for v > 0 { |
| 27 | i-- |
| 28 | buf[i] = byte('0' + v%10) |
| 29 | v /= 10 |
| 30 | } |
| 31 | if negative { |
| 32 | i-- |
| 33 | buf[i] = '-' |
| 34 | } |
| 35 | return string(buf[i:]) |
| 36 | } |
| 37 | |
| 38 | func toArtworkView(a DailyArtwork) artworkView { |
| 39 | v := artworkView{ |
| 40 | Date: a.Date, |
| 41 | Title: a.Title, |
| 42 | ArtistDisplay: a.ArtistDisplay.String, |
| 43 | DateDisplay: a.DateDisplay.String, |
| 44 | MediumDisplay: a.MediumDisplay.String, |
| 45 | Dimensions: a.Dimensions.String, |
| 46 | PlaceOfOrigin: a.PlaceOfOrigin.String, |
| 47 | CreditLine: a.CreditLine.String, |
| 48 | Description: a.Description.String, |
| 49 | ShortDescription: a.ShortDescription.String, |
| 50 | ImageURL: iiifURL(a.ImageID), |
| 51 | SourceURL: sourceURL(a.ArtworkID), |
| 52 | } |
| 53 | v.DescriptionHTML = template.HTML(v.Description) |
| 54 | return v |
| 55 | } |
| 56 | |
| 57 | func (a *App) indexHandler(w http.ResponseWriter, r *http.Request) { |
| 58 | today := a.todayInTZ() |
| 59 | d, err := getDaily(a.DB, today) |
| 60 | if err != nil { |
| 61 | a.Log.Error("index db error", "err", err) |
| 62 | a.renderPageStatus(w, http.StatusInternalServerError, "error.html", errorPageData{Title: "Error", Message: "Could not load today's artwork."}) |
| 63 | return |
| 64 | } |
| 65 | data := indexPageData{TodayDate: today} |
| 66 | if d != nil { |
| 67 | v := toArtworkView(*d) |
| 68 | data.Artwork = &v |
| 69 | } |
| 70 | a.renderPage(w, "index.html", data) |
| 71 | } |
| 72 | |
| 73 | func (a *App) dayHandler(w http.ResponseWriter, r *http.Request) { |
| 74 | date := r.PathValue("date") |
| 75 | if _, ok := parseDate(date); !ok { |
| 76 | a.renderPageStatus(w, http.StatusBadRequest, "error.html", errorPageData{Title: "Invalid date", Message: "'" + date + "' is not a valid YYYY-MM-DD date."}) |
| 77 | return |
| 78 | } |
| 79 | today := a.todayInTZ() |
| 80 | if date > today { |
| 81 | a.renderPageStatus(w, http.StatusNotFound, "error.html", errorPageData{Title: "Not yet", Message: date + " is in the future."}) |
| 82 | return |
| 83 | } |
| 84 | d, err := getDaily(a.DB, date) |
| 85 | if err != nil { |
| 86 | a.Log.Error("day db error", "err", err) |
| 87 | a.renderPageStatus(w, http.StatusInternalServerError, "error.html", errorPageData{Title: "Error", Message: "Database error."}) |
| 88 | return |
| 89 | } |
| 90 | if d == nil { |
| 91 | a.renderPageStatus(w, http.StatusNotFound, "error.html", errorPageData{Title: "Not found", Message: "No artwork stored for " + date + "."}) |
| 92 | return |
| 93 | } |
| 94 | a.renderPage(w, "day.html", dayPageData{Date: date, Artwork: toArtworkView(*d)}) |
| 95 | } |
| 96 | |
| 97 | func (a *App) archiveHandler(w http.ResponseWriter, r *http.Request) { |
| 98 | items, _ := listDaily(a.DB, 1000) |
| 99 | rows := make([]archiveRow, 0, len(items)) |
| 100 | for _, it := range items { |
| 101 | artist := it.ArtistTitle.String |
| 102 | if artist == "" { |
| 103 | artist = it.ArtistDisplay.String |
| 104 | } |
| 105 | rows = append(rows, archiveRow{Date: it.Date, Title: it.Title, Artist: artist}) |
| 106 | } |
| 107 | a.renderPage(w, "archive.html", archivePageData{Archive: rows}) |
| 108 | } |