{% extends "base.htm" %}

{% block title %}NanoShare - Upload{% endblock %}

{% block meta %}
  <meta name="description" content="NanoShare is a lightweight self-hosted file sharing service built on Python Quart.">
  <meta name="keywords" content="NanoShare, file sharing, self-hosted, Python Quart, open source">
  <meta name="robots" content="index, follow" />
{% endblock %}

{% block head %}
<style>
  /* ====== Design Tokens (match Files page) ====== */
  :root{
    --bg: #0f1221;
    --panel: #161a2f;
    --panel-2: #1b2140;
    --text: #e7eaf6;
    --muted: #a7b0d1;
    --accent: #7c9eff;
    --accent-2: #8ef6ff;
    --border: rgba(255,255,255,.08);
    --shadow: 0 10px 30px rgba(0,0,0,.25);
    --radius: 14px;
    --danger: #ff7a7a;
    --success: #63e6b0;
  }
  @media (prefers-color-scheme: light){
    :root{
      --bg: #f6f7fb;
      --panel: #ffffff;
      --panel-2: #f3f6ff;
      --text: #111321;
      --muted: #495273;
      --accent: #385cff;
      --accent-2: #00bcd4;
      --border: rgba(17,19,33,.08);
      --shadow: 0 12px 24px rgba(17,19,33,.08);
      --danger: #e74c3c;
      --success: #0aa06e;
    }
  }

  *{box-sizing:border-box}
  html,body{height:100%}
  body{
    margin:0;
    color:var(--text);
    background:
      radial-gradient(1200px 600px at 10% -10%, rgba(124,158,255,.18), transparent 60%),
      radial-gradient(900px 500px at 110% 10%, rgba(142,246,255,.18), transparent 60%),
      var(--bg);
    font: 500 system-ui, -apple-system, Segoe UI, Roboto, Inter, "Helvetica Neue", Arial, "Noto Sans", "Apple Color Emoji","Segoe UI Emoji";
  }

  .file-upload{
    margin: clamp(16px, 3vw, 32px) auto;
  }
  .card{
    background: linear-gradient(180deg, var(--panel), var(--panel-2));
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    backdrop-filter: saturate(120%) blur(6px);
    -webkit-backdrop-filter: saturate(120%) blur(6px);
    padding: clamp(18px, 2.6vw, 28px);
  }

  .page-title{
    margin: 0 0 10px;
    font-weight: 800;
    letter-spacing:.2px;
    font-size: clamp(22px, 2.4vw, 32px);
    background: linear-gradient(90deg, var(--accent), var(--accent-2));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }
  .subtle{color:var(--muted); margin:0 0 22px}

  /* ====== Upload Zone ====== */
  .dropzone{
    position: relative;
    border: 2px dashed color-mix(in srgb, var(--accent) 40%, var(--border));
    border-radius: calc(var(--radius) - 4px);
    background:
      linear-gradient(180deg, color-mix(in srgb, var(--panel-2) 60%, transparent), transparent);
    padding: clamp(22px, 4vw, 40px);
    text-align: center;
    cursor: pointer;
    transition: border-color .25s ease, background .25s ease, transform .06s ease;
    outline: none;
  }
  .dropzone:hover{
    border-color: color-mix(in srgb, var(--accent) 65%, var(--border));
    background: color-mix(in srgb, var(--panel-2) 75%, transparent);
  }
  .dropzone:focus-visible{
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 35%, transparent);
  }
  .dropzone.drag{
    border-color: var(--accent-2);
    background: color-mix(in srgb, var(--accent) 12%, var(--panel-2));
  }

  .dz-icon{
    font-size: 42px;
    line-height:1;
    margin-bottom: 10px;
    filter: drop-shadow(0 6px 14px rgba(0,0,0,.25));
  }
  .dz-title{font-weight: 800; margin: 6px 0 2px}
  .dz-hint{color:var(--muted); font-size:.95rem; margin:6px 0 0}

  input[type="file"]{display:none}

  /* ====== Fields ====== */
  .field{margin-top:18px}
  .label{
    display:block; margin: 14px 0 8px; font-size:.92rem; color:var(--muted);
  }
  .input, .select, .textarea, .datetime{
    width:100%;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: color-mix(in srgb, var(--panel) 88%, transparent);
    color: var(--text);
    padding: 12px 14px;
    transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;
  }
  .textarea{ min-height: 120px; resize: vertical; }
  .input:focus, .select:focus, .textarea:focus, .datetime:focus{
    outline: none;
    border-color: color-mix(in srgb, var(--accent) 50%, var(--border));
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 25%, transparent);
    background: color-mix(in srgb, var(--panel-2) 92%, transparent);
  }
  .input[disabled], .textarea[disabled]{ opacity:.7; cursor:not-allowed; }

  /* ====== Inline bits ====== */
  .row{display:grid; grid-template-columns:1fr 1fr; gap:14px}
  @media (max-width:720px){ .row{grid-template-columns:1fr} }

  .badge{
    display:inline-block; padding:.35rem .6rem; border-radius:999px; font-size:.8rem;
    background: color-mix(in srgb, var(--accent) 16%, transparent);
    border:1px solid color-mix(in srgb, var(--accent) 32%, var(--border));
    color: var(--accent);
  }
  .preview{ margin-top: 10px; color:var(--muted) }

  /* ====== Buttons ====== */
  .actions{display:flex; align-items:center; gap:10px; margin-top:18px}
  .btn{
    --btn-br: color-mix(in srgb, var(--accent) 40%, var(--border));
    display:inline-flex; align-items:center; justify-content:center; gap:.5ch;
    padding:.8rem 1.1rem; border-radius:12px; border:1px solid var(--btn-br);
    background: linear-gradient(180deg, color-mix(in srgb, var(--accent) 18%, transparent), transparent);
    color:var(--text); font-weight:700; cursor:pointer;
    transition: transform .06s ease, background .2s ease, border-color .2s ease, box-shadow .2s ease;
    box-shadow: 0 2px 0 rgba(0,0,0,.08);
  }
  .btn:hover{
    background: color-mix(in srgb, var(--accent) 30%, var(--panel-2));
    border-color: color-mix(in srgb, var(--accent) 60%, var(--border));
    box-shadow: 0 6px 18px rgba(0,0,0,.18);
  }
  .btn:active{ transform: translateY(1px) scale(.98); }
  .btn[disabled]{opacity:.55; cursor:not-allowed}
  .btn-ghost{
    background: transparent; border-color: var(--border);
  }

  /* ====== Progress ====== */
  .progress{
    height: 10px; border-radius: 999px; background: color-mix(in srgb, var(--panel-2) 70%, transparent);
    border:1px solid var(--border); overflow:hidden; margin-top:12px;
  }
  .bar{
    height:100%; width:0%;
    background: linear-gradient(90deg, var(--accent), var(--accent-2));
    transition: width .2s ease;
  }

  /* ====== Toast ====== */
  .toast{
    position: fixed; right: 16px; bottom: 16px; z-index: 1000;
    background: linear-gradient(180deg, var(--panel), var(--panel-2));
    border:1px solid var(--border); border-radius: 12px; box-shadow: var(--shadow);
    color:var(--text); padding:10px 14px; display:none; align-items:center; gap:.6ch;
  }
  .toast.show{ display:flex; animation: pop .18s ease-out }
  @keyframes pop{ from{ transform: translateY(8px); opacity:0 } to{ transform: translateY(0); opacity:1 } }

  /* ====== Utility ====== */
  .sr-only{ position:absolute!important; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); border:0; }
</style>
{% endblock %}

{% block content %}
<main class="file-upload">
  <section class="card" aria-labelledby="upload-title">
    <h1 id="upload-title" class="page-title">Upload</h1>
    <p class="subtle">Drop a file, paste from clipboard, or paste text. Configure expiry & add a note before uploading.</p>

    <!-- Dropzone -->
    <div id="dropzone" class="dropzone" tabindex="0" role="button" aria-label="Choose a file or drop it here">
      <input type="file" id="fileInput" />
      <div class="dz-icon">📤</div>
      <div class="dz-title">Choose a file or drag it here</div>
      <div class="dz-hint">Tip: Paste an image/file or text from clipboard (⌘/Ctrl + V)</div>
      <div id="fileMeta" class="dz-hint" style="margin-top:8px;display:none;"></div>
    </div>

    <!-- Or paste text -->
    <p class="subtle" style="text-align:center;margin:14px 0 0;">— or paste text below —</p>
    <div class="field">
      <label for="paste" class="label">Text</label>
      <textarea id="paste" class="textarea" placeholder="Paste text…"></textarea>
    </div>

    <!-- Expiration & Note -->
    <div class="row">
      <div class="field">
        <label for="expiresMode" class="label">Expiration</label>
        <select id="expiresMode" class="select">
          <option value="1h">1 hour</option>
          <option value="24h">24 hours</option>
          <option value="7d" selected>7 days</option>
          <option value="30d">30 days</option>
          <option value="never">Never</option>
          <option value="custom">Custom date…</option>
        </select>
      </div>
      <div class="field" id="customWrap" style="display:none;">
        <label for="customExpire" class="label">Custom expiration</label>
        <input type="datetime-local" id="customExpire" class="datetime" />
      </div>
    </div>

    <div class="field">
      <label for="note" class="label">Note (optional)</label>
      <input id="note" class="input" type="text" placeholder="For Joe at ExampleCo" />
    </div>

    <!-- Actions -->
    <div class="actions">
      <button id="clearBtn" class="btn btn-ghost" type="button">🧹 Clear</button>
      <div style="flex:1"></div>
      <button id="uploadBtn" class="btn" disabled>⬆️ Upload</button>
    </div>

    <!-- Progress + Preview -->
    <div class="progress" aria-hidden="true"><div class="bar" id="bar"></div></div>
    <div id="preview" class="preview"></div>
  </section>
</main>

<!-- Toast -->
<div id="toast" class="toast" role="status" aria-live="polite">✅ Uploaded successfully!</div>

<script>
/* ====== Elements ====== */
const dz = document.getElementById('dropzone');
const fileInput = document.getElementById('fileInput');
const pasteEl = document.getElementById('paste');
const uploadBtn = document.getElementById('uploadBtn');
const clearBtn = document.getElementById('clearBtn');
const preview = document.getElementById('preview');
const fileMeta = document.getElementById('fileMeta');
const expiresMode = document.getElementById('expiresMode');
const customWrap = document.getElementById('customWrap');
const customExpire = document.getElementById('customExpire');
const bar = document.getElementById('bar');
const toast = document.getElementById('toast');

let file=null, text='';

/* ====== Helpers ====== */
const mimeToExt = m => {
  // --- Image types ---
  if (m === 'image/png') return 'png';
  if (m === 'image/jpeg') return 'jpg';
  if (m === 'image/gif') return 'gif';
  if (m === 'image/webp') return 'webp';
  if (m === 'application/pdf') return 'pdf';

  // --- Video MIME types ---
  if (m === 'video/mp4') return 'mp4';
  if (m === 'video/webm') return 'webm';
  if (m === 'video/ogg') return 'ogv';
  if (m === 'video/quicktime') return 'mov';
  if (m === 'video/x-matroska' || m === 'video/mkv') return 'mkv';
  if (m === 'video/x-msvideo') return 'avi';
  if (m === 'video/x-ms-wmv') return 'wmv';
  if (m === 'video/mpeg') return 'mpeg';

  // --- Audio MIME types ---
  if (m === 'audio/mpeg') return 'mp3'
  if (m === 'audio/mp3') return 'mp3';
  if (m === 'audio/aac') return 'aac';
  if (m === 'audio/mp4' || m === 'audio/x-m4a') return 'm4a';
  if (m === 'audio/ogg') return 'ogg';
  if (m === 'audio/opus') return 'opus';
  if (m === 'audio/webm') return 'weba';
  if (m === 'audio/wav' || m === 'audio/x-wav') return 'wav';
  if (m === 'audio/flac') return 'flac';
  if (m === 'audio/x-ms-wma') return 'wma';

  // --- Text fallback ---
  if (m && m.startsWith('text/')) return 'txt';

  return 'bin'; // default / unknown
};

const isoStamp = () => new Date().toISOString().replace(/[:]/g,'').replace(/\.\d+Z$/,'Z');
const fmtKB = b => `${Math.max(1, Math.round((b||0)/1024)).toLocaleString()} KB`;

function updateUI(){
  uploadBtn.disabled = !(file || (text && text.trim()));
  pasteEl.disabled = !!file;
  fileInput.disabled = !!(text && text.trim());
  // Preview + meta
  if(file){
    fileMeta.style.display='block';
    fileMeta.innerHTML = `Selected: <span class="badge">${file.name}</span> · <span class="badge">${fmtKB(file.size)}</span>`;
  }else{
    fileMeta.style.display='none';
    fileMeta.textContent='';
  }
  preview.textContent = '';
}

function setFileFromBlob(blob){
  const ext=mimeToExt(blob.type||'');
  const name=`pasted-${isoStamp()}.${ext}`;
  file=new File([blob],name,{type:blob.type||'application/octet-stream'});
  text=''; pasteEl.value='';
  updateUI();
}

function clearAll(){
  file=null; text=''; pasteEl.value='';
  fileInput.value='';
  bar.style.width='0%';
  preview.textContent='';
  updateUI();
}

/* ====== Dropzone interactions ====== */
dz.addEventListener('click',()=>!fileInput.disabled && fileInput.click());
dz.addEventListener('keydown',e=>{
  if((e.key==='Enter'||e.key===' ') && !fileInput.disabled){ e.preventDefault(); fileInput.click(); }
});
dz.addEventListener('dragover',e=>{e.preventDefault(); dz.classList.add('drag');});
['dragleave','dragend'].forEach(ev=>dz.addEventListener(ev,()=>dz.classList.remove('drag')));
dz.addEventListener('drop',e=>{
  e.preventDefault(); dz.classList.remove('drag');
  if(fileInput.disabled)return;
  const f=e.dataTransfer.files&&e.dataTransfer.files[0];
  if(f){file=f;text='';pasteEl.value='';updateUI();}
});
fileInput.addEventListener('change',e=>{
  const f=e.target.files[0]; if(f){file=f;text='';pasteEl.value='';updateUI();}
});

/* ====== Clipboard handling ====== */
window.addEventListener('paste',e=>{
  if(file || (text && text.trim())) return;
  const items=e.clipboardData?.items||[];
  const fItem=[...items].find(it=>it.kind==='file');
  if(fItem){
    e.preventDefault();
    const blob=fItem.getAsFile();
    if(blob) setFileFromBlob(blob);
    return;
  }
  const pasted=e.clipboardData?.getData('text')||'';
  if(pasted){ pasteEl.value=pasted; text=pasted; updateUI(); }
});
pasteEl.addEventListener('input',e=>{ text = e.target.value; updateUI(); });

/* ====== Expiration handling ====== */
expiresMode.addEventListener('change',()=>{
  if(expiresMode.value==='custom'){
    customWrap.style.display='block';
    customExpire.value = new Date(Date.now()+3600*1000).toISOString().slice(0,16);
  } else {
    customWrap.style.display='none';
  }
});

/* ====== Clear ====== */
clearBtn.addEventListener('click',clearAll);

/* ====== Upload ====== */
uploadBtn.addEventListener('click',async()=>{
  const note=document.getElementById('note').value;
  let expiresValue=expiresMode.value;
  if(expiresValue==='custom' && customExpire.value){
    const dt=new Date(customExpire.value);
    if(isNaN(+dt)){ preview.textContent='❌ Invalid custom date'; return; }
    expiresValue=dt.toISOString();
  }

  const form=new FormData();
  if(file) form.append('file',file,file.name);
  if(text && text.trim()) form.append('text',text);
  form.append('expires',expiresValue);
  form.append('note',note);

  uploadBtn.disabled=true;
  preview.textContent='Uploading…';
  bar.style.width='0%';

  try{
    // Use fetch with progress via XHR fallback for better granularity
    const endpoint = '/api/upload';
    if('upload' in new XMLHttpRequest()){
      await new Promise((resolve, reject)=>{
        const xhr=new XMLHttpRequest();
        xhr.open('POST', endpoint);
        xhr.upload.onprogress = (e)=>{
          if(e.lengthComputable){
            const pct = Math.round((e.loaded/e.total)*100);
            bar.style.width = pct + '%';
          }
        };
        xhr.onload = ()=> xhr.status>=200 && xhr.status<300 ? resolve() : reject(new Error('Upload failed'));
        xhr.onerror = ()=> reject(new Error('Network error'));
        xhr.send(form);
      });
    } else {
      const res=await fetch(endpoint,{method:'POST',body:form});
      if(!res.ok) throw new Error('Upload failed');
      bar.style.width='100%';
    }

    preview.textContent = '✅ Uploaded successfully!';
    showToast('✅ Uploaded successfully!');
    // Optional: redirect to Files after short delay
    // setTimeout(()=>{ window.location.href = '{{ url_for("side_main.files") }}'; }, 800);
  }catch(err){
    preview.textContent = '❌ ' + (err?.message || 'Upload error');
    showToast('❌ Upload failed', true);
    bar.style.width='0%';
  }finally{
    uploadBtn.disabled=false;
  }
});

function showToast(msg, danger=false){
  toast.textContent = msg;
  toast.style.borderColor = danger ? 'color-mix(in srgb, var(--danger) 50%, var(--border))' : 'var(--border)';
  toast.classList.add('show');
  setTimeout(()=> toast.classList.remove('show'), 1800);
}

/* ====== Init ====== */
updateUI();
</script>
{% endblock %}