filadelfia_archive: When generating a banner, do incremental lower quality to fit 8000 character limit

filadelfia_archive/app/api.js

@@ -21,9 +21,22 @@ function safeParseReponse(str, status, url) {
   }
 }
 
+let requests = new Set()
+let requestIndex = 0
+
+function clearLoading(request) {
+  requests.delete(request)
+  if (!requests.size) {
+    api.loading = false
+    window.requestAnimationFrame(m.redraw.bind(m))
+  }
+}
+
 const api = {
   loading: false,
   sendRequest: function(options, isPagination) {
+    let request = requestIndex++
+    requests.add(request)
     api.loading = true
     let token = Authentication.getToken()
     let pagination = isPagination
@@ -61,15 +74,14 @@ const api = {
       }
       return out
     }
-  
+
     return m.request(options)
       .then(function(res) {
-        api.loading = false
-        window.requestAnimationFrame(m.redraw.bind(m))
+        clearLoading(request)
         return res
       })
       .catch(function (error) {
-        api.loading = false
+        clearLoading(request)
         window.requestAnimationFrame(m.redraw.bind(m))
         if (error.status === 403) {
           Authentication.clearToken()
@@ -82,10 +94,15 @@ const api = {
       })
   },
 
-  uploadBanner: function(bannerFile, token) {
+  uploadBanner: function(bannerFile, token, reporter) {
+    let request = requestIndex++
+    requests.add(request)
+    api.loading = true
+
+    var report = reporter || function() {}
     var data = new FormData()
     data.append('file', bannerFile)
-    data.append('preview', JSON.stringify({
+    /*data.append('preview', JSON.stringify({
       "out": "base64",
       "format": "avif",
       "resize": {
@@ -96,10 +113,10 @@ const api = {
         "kernel": "mitchell"
       },
       "avif": {
-        "quality": 50,
+        "quality": 40,
         "effort": 9
       }
-    }))
+    }))*/
     data.append('medium', JSON.stringify({
       "format": "avif",
       "resize": {
@@ -115,29 +132,75 @@ const api = {
       }
     }))
 
+    report(lang.api_banner_upload)
+
     return api.sendRequest({
       method: 'POST',
       url: token.resize + '?token=' + token.token,
       body: data,
     })
-    .then(banner => {
+    .then(async (banner) => {
+      let preview = null
+      let quality = 60
+      while (!preview && quality > 10) {
+        report(lang.format(lang.api_banner_generate, quality))
+        let check = await api.sendRequest({
+          method: 'POST',
+          url: token.resize + '/' + banner.filename + '?token=' + token.token,
+          body: {
+            "preview": {
+              "out": "base64",
+              "format": "avif",
+              "resize": {
+                "width": 360,
+                "height": 203,
+                "fit": "cover",
+                "withoutEnlargement": true,
+                "kernel": "mitchell"
+              },
+              "avif": {
+                "quality": quality,
+                "effort": 9
+              }
+            },
+          },
+        })
+
+        if (check.preview.base64.length < 8000) {
+          preview = check.preview.base64
+        } else {
+          quality -= 5
+        }
+      }
+      report(null)
+
       api.sendRequest({
         method: 'DELETE',
         url: token.delete + banner.filename + '?token=' + token.token,
       }).catch(err => console.error(err))
 
       return {
-        file: banner,
+        file: bannerFile,
         size: bannerFile.size,
         medium: {
           filename: banner.medium.filename,
           path: banner.medium.path,
         },
         preview: {
-          base64: banner.preview.base64,
+          base64: preview,
         },
       }
     })
+    .then(
+      function(res) {
+        clearLoading(request)
+        return res
+      },
+      function(err) {
+        clearLoading(request)
+        return Promise.reject(err)
+      }
+    )
   },
 
   prettyFormatBytes: function(bytes) {
@@ -153,6 +216,8 @@ const api = {
   },
 
   uploadFileProgress: function(options, file, reporter) {
+    let request = requestIndex++
+    requests.add(request)
     api.loading = true
 
     return new Promise(function(res, rej) {
@@ -207,12 +272,10 @@ const api = {
       report(request, 0)
     })
     .then(function(res) {
-      api.loading = false
-      window.requestAnimationFrame(m.redraw.bind(m))
+      clearLoading(request)
       return res
     }, function(err) {
-      api.loading = false
-      window.requestAnimationFrame(m.redraw.bind(m))
+      clearLoading(request)
       return Promise.reject(err)
     })
   },

filadelfia_archive/app/lang.js

@@ -59,6 +59,10 @@ const i18n = {
 														'Villa við að eyða efni: {0}'],
 	article_error:				['Error while saving: {0}',
 														'Villa við að vista: {0}'],
+	api_banner_upload:	['Uploading banner image',
+														'Er að senda mynd'],
+	api_banner_generate:['Generating preview, testing quality {0}%',
+														'Bý til forsíðumynd, prufa {0}% gæði'],
 	months: {
 		'1':									['January',
 														'Janúar'],

filadelfia_archive/app/page_upload.js

@@ -19,6 +19,7 @@ const Upload = {
     this.cacheVideo = null
     this.cacheImage = null
     this.uploading = null
+    this.bannerStatus = null
     this.form = {
       title: 'Sunnudagssamkoma',
       date: d,
@@ -49,7 +50,10 @@ const Upload = {
         return this.cacheImage
       }
 
-      return api.uploadBanner(this.form.banner, res)
+      return api.uploadBanner(this.form.banner, res, (status) => {
+        this.bannerStatus = status
+        m.redraw()
+      })
       .then(imageData => {
         this.cacheImage = imageData
         return res
@@ -113,6 +117,7 @@ const Upload = {
       m.route.set('/')
     })
     .catch((error) => {
+      this.bannerStatus = null
       this.uploading = null
       if (!error) return
 
@@ -196,6 +201,10 @@ const Upload = {
               value: 'Begin upload',
             }),
             api.loading ? m('div.loading-spinner') : null,
+            this.bannerStatus ? [
+              m('p', this.bannerStatus),
+              m('.loading-bar', { style: `--progress: 0%` }),
+            ] : null,
             this.uploading ? [
               m('p', `${Math.floor(this.uploading.progress)}% (${this.uploading.perSecond}/s)`),
               m('.loading-bar', { style: `--progress: ${this.uploading.progress}%` }),

filadelfia_archive/package.json

@@ -1,6 +1,6 @@
 {
   "name": "filadelfia_archive",
-  "version": "1.0.4",
+  "version": "1.0.5",
   "port": 4130,
   "description": "Filadelfia archive",
   "main": "index.js",

filadelfia_archive/public/index.html

@@ -145,7 +145,6 @@ footer a { font-size: 0.8rem; }
 .article { width: 100%; max-width: 1280px; padding: 0.5rem; align-self: center; margin-bottom: 5rem; }
 .article .full-error { margin-top: 1rem; }
 .article-name { flex: 2 1 auto; margin-left: 1rem; }
-.image-banner { height: 160px; }
 .article h1 { margin: 0; }
 .article h1,
 .article p { padding: 0 0.5rem 0.5rem; }