feature: add homepage

src/routes/+page.svelte

@@ -1,18 +1,68 @@
 <script lang="ts">
-    import localforage from "$lib/storage";
-    let musicList;
+    import extractFileName from '$lib/extractFileName';
+    import toHumanSize from '$lib/humanSize';
+    import localforage from '$lib/storage';
+    interface Song {
+        name: string;
+        singer?: string;
+        coverUrl?: string;
+        size?: number;
+    }
+    interface SongList {
+        [key: string]: Song;
+    }
+    let musicList: SongList = {};
+    let idList: string[] = [];
 
     function extractId(key: string) {
-        return key.split('-').pop();
+        const addons = ['-cover-cache', '-file', '-lyric', '-metadata', '-cover'];
+        let r = key;
+        for (const addon of addons) {
+            if (r.endsWith(addon)) {
+                return [r.substring(0, r.length - addon.length), addon.replace(/-/g, ' ').trim()];
+            }
+        }
+        return [r, ''];
     }
-    localforage.iterate(function (value, key, iterationNumber) {
-        console.log(extractId(key));
-    })
+    localforage.iterate(function (value: File | Blob | any, key, iterationNumber) {
+        const [id, type] = extractId(key);
+        if (!type) return;
+        if (!musicList[id]) musicList[id] = { name: '' };
+        if (type === 'file') {
+            const v = value as File;
+            musicList[id].name = extractFileName(v.name);
+            musicList[id].size = v.size;
+        } else if (type === 'cover') {
+            const v = value as Blob;
+            musicList[id].coverUrl = URL.createObjectURL(v);
+        }
+        idList = Object.keys(musicList);
+        console.log(musicList);
+    });
 </script>
 
-<div
-    class="absolute w-screen md:w-2/3 left-0 md:left-[16.6667%] px-[3%] md:px-0 top-16"
->
+<div class="absolute w-screen md:w-2/3 lg:w-1/2 left-0 md:left-[16.6667%] lg:left-1/4 px-[3%] md:px-0 top-16">
     <h1>AquaVox</h1>
     <h2>音乐库</h2>
+    <div>
+        <ul
+            class="mt-4 relative w-full"
+        >
+            {#each idList as id}
+                <a href={`/play/${id}`}>
+                    <li class="relative my-4 p-4 bg-zinc-300 dark:bg-zinc-600 rounded-lg">
+                        <span>{musicList[id].name}</span> <br />
+                        <span>{toHumanSize(musicList[id].size)}</span>
+                        {#if musicList[id].coverUrl}
+                            <img
+                                class="h-16 w-16 object-cover absolute rounded-lg right-2 top-2"
+                                src={musicList[id].coverUrl}
+                                alt=""
+                            />
+                        {/if}
+                    </li>
+                </a>
+            {/each}
+        </ul>
+    </div>
 </div>