android: a folder of audio files, and a paste of track links

The paste door now reads itself the way the desktop's does: one track link
in the paste and every line is looked up on its own public page
(playlist_import_track_links), which is the way past Spotify's 100-track
public ceiling — the wait screen counts them as they arrive. A fourth door
imports a folder of audio files off this phone, picked with the storage
plugin's own document-tree picker; playlist_import_folder grew a path
argument for it, because on Android it had no dialog to open and always
answered nothing. A YouTube playlist link needed no door at all — the link
one already dispatches it.

tests/mobile/smoke.mjs

@@ -125,6 +125,8 @@ const PROBE = `(function () {
         impCounts: (document.querySelector('.imp-counts') || {}).textContent || '',
         impFmt: (document.querySelector('.imp-head .stats .s') || {}).textContent || '',
         impWait: !!document.querySelector('.imp-wait'),
+        impWaitLine: (document.querySelector('.imp-wait b') || {}).textContent || '',
+        impWarn: [].map.call(document.querySelectorAll('.imp-warn div'), function (d) { return d.textContent.trim(); }).join('|'),
         impBtn: (document.querySelector('.imp-foot .btn-fill') || {}).textContent || '',
         keepOn: !!document.querySelector('.imp-form .sw.on'),
         bulkline: (document.querySelector('.bulkline') || {}).textContent || '',
@@ -454,6 +456,19 @@ const MOCK_STEPS = [
     { name: "import-link-review", wait: 3400 },
     { do: `__click('.imp-foot .btn-fill', 'Create playlist')`, name: "import-link-created", wait: 1500 },
     { do: `history.back()`, name: "playlists-after-import", wait: 900 },
+    /* pasted TRACK links: the paste door reads each one off its own page —
+       the wait line names the door, the warning counts the links */
+    { do: `__click('.newpl', 'Import')`, wait: 700 },
+    { do: `__click('.halfsheet .row', 'Paste a tracklist')`, wait: 700 },
+    { do: `(function () { var i = document.querySelector('.halfsheet .prompt .field'); i.value = 'https://open.spotify.com/track/aaaaaaaaaaaaaaaaaaaaaa\\nhttps://open.spotify.com/track/bbbbbbbbbbbbbbbbbbbbbb\\nhttps://open.spotify.com/track/cccccccccccccccccccccc'; i.dispatchEvent(new Event('input', { bubbles: true })); })()`, wait: 300 },
+    { do: `__click('.halfsheet .prompt-acts .btn-fill', 'Import')`, name: "import-links-wait", wait: 500 },
+    { name: "import-links-review", wait: 2600 },
+    { do: `__click('.imp-foot .btn-ghost', null)`, wait: 900 },
+    /* the folder door: the phone's own folder picker, then the backend's walk */
+    { do: `__click('.newpl', 'Import')`, wait: 700 },
+    { do: `__click('.halfsheet .row', 'Folder of audio files')`, name: "import-folder-review", wait: 2200 },
+    { do: `__click('.imp-foot .btn-fill', 'Create playlist')`, name: "import-folder-created", wait: 1500 },
+    { do: `history.back()`, wait: 900 },
     /* a share from another app: the plugin hands the text over when the
        app comes to the front, and it lands in the import */
     { do: `__ssMock.share = 'Check this out https://music.apple.com/us/playlist/late/pl.u-mock'; document.dispatchEvent(new Event('visibilitychange'))`, name: "share-import", wait: 3600 },
@@ -648,7 +663,7 @@ const MOCK_EXPECT = {
     "playlist-filled": (i) => /^New Playlist/.test(i.title) && i.plrows >= 5,
     "playlist-delete-confirm": (i) => i.half.includes("up") && /Delete/.test(i.halfText),
     "playlist-deleted": (i) => i.title.startsWith("Your library") && i.plcards === 3 && !/New Playlist/.test(i.plnames),
-    "import-sheet": (i) => i.half.includes("up") && /Playlist from a link/.test(i.halfText) && /Paste a tracklist/.test(i.halfText),
+    "import-sheet": (i) => i.half.includes("up") && /Playlist from a link/.test(i.halfText) && /Paste a tracklist/.test(i.halfText) && /Folder of audio files/.test(i.halfText),
     "import-paste-prompt": (i) => i.half.includes("up") && /Paste a tracklist/.test(i.halfText) && i.promptVal === "",
     "import-review": (i) => i.title.startsWith("Import") && i.imp === 3 && /1 in library/.test(i.impCounts) && /tags/.test(i.impTags) && /unresolved/.test(i.impTags) && /catalog/.test(i.impTags) && i.keepOn && /Create playlist \(3 tracks\)/.test(i.impBtn),
     "import-keep-off": (i) => !i.keepOn && /Create playlist \(2 tracks\)/.test(i.impBtn),
@@ -658,6 +673,10 @@ const MOCK_EXPECT = {
     "import-link-review": (i) => i.imp === 5 && /Spotify/.test(i.impFmt) && /catalog/.test(i.impTags) && !/matching/.test(i.impTags) && /Create playlist \(5 tracks\)/.test(i.impBtn),
     "import-link-created": (i) => i.title.startsWith("Late Night Mix") && i.plrows === 5,
     "playlists-after-import": (i) => i.title.startsWith("Your library") && i.plcards === 5,
+    "import-links-wait": (i) => i.impWait && /pasted links/.test(i.impWaitLine),
+    "import-links-review": (i) => i.imp === 3 && /Pasted links/.test(i.impFmt) && /read from 3 pasted links/.test(i.impWarn) && /Create playlist \(3 tracks\)/.test(i.impBtn),
+    "import-folder-review": (i) => i.title.startsWith("Import") && /Folder/.test(i.impFmt) && i.imp === 4 && i.impTags === "file|file|file|file" && /4 in library/.test(i.impCounts) && /Create playlist \(4 tracks\)/.test(i.impBtn),
+    "import-folder-created": (i) => i.title.startsWith("Music") && i.plrows === 4,
     "share-import": (i) => i.title.startsWith("Import") && /Apple Music/.test(i.impFmt) && i.imp === 5,
     "share-cancel": (i) => i.title.startsWith("Your library"),
     "cat-album-row": (i) => i.playing.includes("Aerodynamic") && /streaming from/.test(i.live),
@@ -743,6 +762,23 @@ const PHONE_STEPS = [
     { do: `document.querySelectorAll('.gbar .iconbtn')[1].click()`, wait: 800 },
     { do: `__click('.halfsheet .row', 'Delete playlist')`, wait: 700 },
     { do: `__click('.halfsheet .prompt-acts .btn-fill', 'Delete')`, name: "import-deleted", wait: 1500 },
+    /* the pasted-links door on the real core: one track link, and the wait
+       line says which door read the paste; the review is left as it came */
+    { do: `__click('.newpl', 'Import')`, wait: 700 },
+    { do: `__click('.halfsheet .row', 'Paste a tracklist')`, wait: 700 },
+    { do: `(function () { var i = document.querySelector('.halfsheet .prompt .field'); i.value = 'https://open.spotify.com/track/0DiWJLRWCDgbxTYvvVjHOP'; i.dispatchEvent(new Event('input', { bubbles: true })); })()`, wait: 300 },
+    { do: `__click('.halfsheet .prompt-acts .btn-fill', 'Import')`, name: "import-links-wait", wait: 700 },
+    { name: "import-links-review", wait: 9000 },
+    { do: `__click('.imp-foot .btn-ghost', null)`, wait: 900 },
+    /* the folder door on the real core, one record's own folder — the
+       argument the command grew, walked for real; nothing is created */
+    { do: `(async function () { var a = __ss.lib.albums[0]; var ts = await __ss.api.albumTracks(a.id); var f = ts[0].path; var cut = Math.max(f.lastIndexOf('/'), f.lastIndexOf(String.fromCharCode(92))); __ss.push('import', {}); __ss.imp.startFolder(f.slice(0, cut)); return f.slice(0, cut); })()`, name: "import-folder-real", wait: 7000 },
+    { do: `__click('.imp-foot .btn-ghost', null)`, wait: 900 },
+    /* the picker itself is a system sheet the walk cannot tap: open it,
+       dismiss it with BACK, and check the cancel path leaves nothing */
+    { do: `__click('.newpl', 'Import')`, wait: 700 },
+    { do: `__click('.halfsheet .row', 'Folder of audio files')`, name: "import-folder-picker", wait: 2600 },
+    { adb: ["shell", "input", "keyevent", "4"], name: "import-folder-cancelled", wait: 2000 },
     /* the share sheet: a Spotify playlist link sent by "another app" (an
        intent on the plugin's activity) lands in the import — the review is
        left without creating anything */
@@ -826,6 +862,14 @@ const PHONE_EXPECT = {
     "import-match-results": (i) => /Aerodynamic/.test(i.halfText),
     "import-matched": (i) => !i.half.includes("up") && !/unresolved/.test(i.pltags) && /Linked to/.test(i.notice) && !i.toast,
     "import-deleted": (i) => i.title.startsWith("Your library") && !/Imported playlist/.test(i.plnames) && !i.toast,
+    /* the real core can answer one track link faster than the probe lands,
+       so the wait card is allowed to be gone already — but then the review
+       it turned into has to be there. Either way the door did something. */
+    "import-links-wait": (i) => i.title.startsWith("Import") && (i.impWait ? /pasted links/.test(i.impWaitLine) : i.imp > 0 || i.impErr),
+    "import-links-review": (i) => i.title.startsWith("Import") && (i.imp > 0 || i.impErr),
+    "import-folder-real": (i) => i.title.startsWith("Import") && /Folder/.test(i.impFmt) && i.imp > 0,
+    "import-folder-picker": (i) => !i.half.includes("up") && !i.toast,
+    "import-folder-cancelled": (i) => i.title.startsWith("Your library") && !i.half.includes("up") && !i.toast,
     "share-import": (i) => i.title.startsWith("Import") && (i.imp > 0 || i.impErr),
     "share-cancel": (i) => i.title.startsWith("Your library"),
     artist: (i) => i.screen.includes("has-hero") && i.amb.includes("on:img") && i.tabs >= 1,