ToDo-List/todo.html at main · akash15072004/ToDo-List · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1" />
  <title>To‑Do List</title>
  <style>
    :root{
      --bg: #0f172a;         /* slate-900 */
      --panel: #111827;      /* gray-900 */
      --muted: #94a3b8;      /* slate-400 */
      --text: #e5e7eb;       /* gray-200 */
      --brand: #6366f1;      /* indigo-500 */
      --brand-2: #8b5cf6;    /* violet-500 */
      --ok: #10b981;         /* emerald-500 */
      --danger: #ef4444;     /* red-500 */
      --warning: #f59e0b;    /* amber-500 */
      --ring: #334155;       /* slate-700 */
      --chip: #1f2937;       /* gray-800 */
      --chip-active: #0ea5e9;/* sky-500 */
    }

    * { box-sizing: border-box; }
    html, body { height: 100%; }
    body{
      margin:0; font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
      background: radial-gradient(1000px 500px at 10% -10%, #1e293b 0%, transparent 60%),
                  radial-gradient(1000px 500px at 110% 0%, #1e293b 0%, transparent 60%),
                  var(--bg);
      color: var(--text);
      display:flex; align-items:center; justify-content:center; padding: 24px;
    }

    .app{
      width: min(850px, 100%);
      background: linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.02));
      border: 1px solid rgba(148,163,184,0.15);
      border-radius: 20px;
      box-shadow: 0 10px 30px rgba(0,0,0,0.35), inset 0 1px 0 rgba(255,255,255,0.06);
      padding: 20px 20px 16px;
      backdrop-filter: blur(8px);
    }

    .header{
      display:flex; align-items:center; gap:14px; justify-content:space-between; margin-bottom: 16px;
    }
    .title{
      display:flex; align-items:center; gap:10px;
      font-weight:700; letter-spacing: 0.2px;
    }
    .title .logo{
      width: 36px; height:36px; border-radius: 12px;
      background: conic-gradient(from 180deg at 50% 50%, var(--brand), var(--brand-2));
      display:grid; place-items:center; color:white; font-weight:800;
      box-shadow: 0 6px 18px rgba(99,102,241,0.5);
    }
    .title span{ font-size: 1.2rem; }

    .controls{
      display:flex; gap:8px; align-items:center;
    }
    .btn{ cursor:pointer; border:none; border-radius: 10px; padding:10px 12px; color:var(--text); background:#0b1220; border:1px solid var(--ring);
      display:inline-flex; align-items:center; gap:8px; font-weight:600; transition: transform .06s ease, background .2s ease, border-color .2s ease;
    }
    .btn:hover{ transform: translateY(-1px); border-color:#475569; }
    .btn:active{ transform: translateY(0); }

    .input-row{ display:flex; gap:10px; margin: 8px 0 14px; }
    .input{ flex:1; position:relative; }
    .input input{
      width: 100%; padding: 14px 16px 14px 44px; border-radius: 12px; border: 1px solid var(--ring);
      background: #0b1220; color: var(--text); outline: none; font-size: 15px;
      box-shadow: inset 0 1px 0 rgba(255,255,255,0.04);
    }
    .input input:focus{ border-color: var(--brand); box-shadow: 0 0 0 4px rgba(99,102,241,0.2); }
    .input .icon{ position:absolute; left:12px; top:50%; transform: translateY(-50%); opacity:.8; }

    .pill-tabs{ display:flex; gap:8px; flex-wrap:wrap; }
    .pill{ padding:8px 12px; border-radius: 999px; background: var(--chip); border:1px solid var(--ring); cursor:pointer; font-weight:600; }
    .pill[aria-current="true"]{ outline: none; border-color: var(--chip-active); box-shadow: 0 0 0 3px rgba(14,165,233,0.25); }

    .list{
      list-style:none; margin: 14px 0 8px; padding: 0; display: grid; gap:8px;
    }

    .item{
      display:grid; grid-template-columns: auto 1fr auto; align-items:center; gap:12px;
      padding: 12px; background: #0b1220; border:1px solid var(--ring); border-radius: 14px;
    }
    .item[draggable="true"]{ cursor: grab; }
    .item.dragging{ opacity:.5; }

    .checkbox{ width:22px; height:22px; appearance:none; border:2px solid #475569; border-radius:6px; display:grid; place-items:center; background:transparent; cursor:pointer; }
    .checkbox:checked{ background: linear-gradient(135deg, var(--ok), #22c55e); border-color: transparent; }
    .checkbox:checked::after{ content:"✓"; font-weight:800; color:white; font-size: 14px; }

    .text{ line-height:1.4; }
    .text.completed{ text-decoration: line-through; color: var(--muted); }

    .actions{ display:flex; gap:8px; }
    .icon-btn{ width:34px; height:34px; border-radius: 10px; border:1px solid var(--ring); background:#0b1220; display:grid; place-items:center; cursor:pointer; }
    .icon-btn:hover{ border-color:#64748b; }

    .footer{
      display:flex; align-items:center; justify-content:space-between; gap:8px; margin-top: 10px; flex-wrap: wrap;
      color: var(--muted); font-size: 14px;
    }

    .sr-only{ position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); border:0; }

    @media (max-width: 540px){
      .actions{ gap:6px; }
      .btn{ padding: 9px 10px; }
    }
  </style>
</head>
<body>
  <div class="app" role="application" aria-label="To‑Do app">
    <div class="header">
      <div class="title">
        <div class="logo" aria-hidden="true">✓</div>
        <span>To‑Do List</span>
      </div>
      <div class="controls">
        <button id="clearCompleted" class="btn" title="Clear completed tasks">🧹 Clear Completed</button>
        <button id="exportJson" class="btn" title="Download tasks as JSON">⬇️ Export</button>
        <button id="importJson" class="btn" title="Import tasks from JSON">⬆️ Import</button>
        <button id="toggleTheme" class="btn" title="Toggle theme">🌗 Theme</button>
      </div>
    </div>

    <div class="input-row">
      <label class="input">
        <span class="icon">📝</span>
        <input id="newTask" type="text" placeholder="Add a task and press Enter…" aria-label="Add new task" />
      </label>
      <button id="addBtn" class="btn" aria-label="Add task">Add</button>
    </div>

    <div class="pill-tabs" role="tablist" aria-label="Filters">
      <button class="pill" data-filter="all" aria-current="true">All</button>
      <button class="pill" data-filter="active">Active</button>
      <button class="pill" data-filter="completed">Completed</button>
      <button class="pill" data-filter="today">Today</button>
      <button class="pill" data-filter="overdue">Overdue</button>
    </div>

    <ul id="todoList" class="list" aria-live="polite"></ul>

    <div class="footer">
      <div><strong id="count">0</strong> items • <span id="status">All</span></div>
      <div>Tip: drag to reorder • double‑click a task to edit</div>
    </div>
  </div>

  <template id="itemTemplate">
    <li class="item" draggable="true">
      <input type="checkbox" class="checkbox" />
      <div class="text" contenteditable="false"></div>
      <div class="actions">
        <button class="icon-btn" data-action="edit" title="Edit">✏️</button>
        <button class="icon-btn" data-action="schedule" title="Set due date">📅</button>
        <button class="icon-btn" data-action="delete" title="Delete">🗑️</button>
      </div>
      <span class="sr-only" data-due></span>
    </li>
  </template>

  <script>
    (function(){
      const list = document.getElementById('todoList');
      const input = document.getElementById('newTask');
      const addBtn = document.getElementById('addBtn');
      const filterTabs = document.querySelectorAll('.pill');
      const countEl = document.getElementById('count');
      const statusEl = document.getElementById('status');
      const clearCompletedBtn = document.getElementById('clearCompleted');
      const exportBtn = document.getElementById('exportJson');
      const importBtn = document.getElementById('importJson');
      const themeBtn = document.getElementById('toggleTheme');

      const STORAGE_KEY = 'todo-items-v1';
      let items = load();
      let filter = 'all';

      function uid(){ return Math.random().toString(36).slice(2, 10); }

      function load(){
        try{ return JSON.parse(localStorage.getItem(STORAGE_KEY)) || []; }
        catch{ return []; }
      }
      function save(){ localStorage.setItem(STORAGE_KEY, JSON.stringify(items)); }

      function render(){
        list.innerHTML = '';
        const now = new Date(); now.setHours(0,0,0,0);
        const frag = document.createDocumentFragment();
        let visibleCount = 0;

        for(const item of items){
          if(!matchesFilter(item)) continue;
          visibleCount++;
          const el = createItemElement(item);
          frag.appendChild(el);
        }
        list.appendChild(frag);
        countEl.textContent = items.filter(i=>!i.completed).length;
        statusEl.textContent = filter[0].toUpperCase() + filter.slice(1);
      }

      function matchesFilter(item){
        const today = new Date(); today.setHours(0,0,0,0);
        if(filter === 'all') return true;
        if(filter === 'active') return !item.completed;
        if(filter === 'completed') return item.completed;
        if(filter === 'today'){
          if(!item.due) return false;
          const d = new Date(item.due); d.setHours(0,0,0,0);
          return d.getTime() === today.getTime();
        }
        if(filter === 'overdue'){
          if(!item.due) return false;
          const d = new Date(item.due); d.setHours(0,0,0,0);
          return d.getTime() < today.getTime() && !item.completed;
        }
        return true;
      }

      function createItemElement(item){
        const tpl = document.getElementById('itemTemplate');
        const node = tpl.content.firstElementChild.cloneNode(true);
        const checkbox = node.querySelector('.checkbox');
        const textDiv = node.querySelector('.text');
        const dueLive = node.querySelector('[data-due]');

        node.dataset.id = item.id;
        textDiv.textContent = item.text;
        if(item.completed) textDiv.classList.add('completed');
        checkbox.checked = !!item.completed;
        node.title = item.due ? `Due: ${new Date(item.due).toLocaleDateString()}` : 'No due date';
        dueLive.textContent = item.due ? `Due ${new Date(item.due).toDateString()}` : '';

        checkbox.addEventListener('change', () => {
          item.completed = checkbox.checked;
          textDiv.classList.toggle('completed', item.completed);
          save();
          render();
        });

        node.addEventListener('dblclick', () => startEdit(textDiv, item));

        node.querySelector('[data-action="edit"]').addEventListener('click', () => startEdit(textDiv, item));
        node.querySelector('[data-action="schedule"]').addEventListener('click', () => setDueDate(item));
        node.querySelector('[data-action="delete"]').addEventListener('click', () => removeItem(item.id));

        // Drag & drop
        node.addEventListener('dragstart', (e)=>{
          node.classList.add('dragging');
          e.dataTransfer.setData('text/plain', item.id);
        });
        node.addEventListener('dragend', ()=> node.classList.remove('dragging'));

        node.addEventListener('dragover', (e)=>{
          e.preventDefault();
          const dragging = list.querySelector('.dragging');
          if(!dragging || dragging === node) return;
          const rect = node.getBoundingClientRect();
          const after = (e.clientY - rect.top) / rect.height > 0.5;
          list.insertBefore(dragging, after ? node.nextSibling : node);
        });

        node.addEventListener('drop', ()=>{
          const ids = [...list.children].map(li=>li.dataset.id);
          items.sort((a,b)=> ids.indexOf(a.id) - ids.indexOf(b.id));
          save();
          render();
        });

        return node;
      }

      function startEdit(textDiv, item){
        textDiv.contentEditable = 'true';
        textDiv.focus();
        const range = document.createRange();
        range.selectNodeContents(textDiv); range.collapse(false);
        const sel = window.getSelection(); sel.removeAllRanges(); sel.addRange(range);

        function finish(commit){
          textDiv.contentEditable = 'false';
          textDiv.removeEventListener('keydown', onKey);
          textDiv.removeEventListener('blur', onBlur);
          if(commit){
            const val = textDiv.textContent.trim();
            if(val){ item.text = val; save(); render(); }
            else { removeItem(item.id); }
          } else {
            textDiv.textContent = item.text; // revert
          }
        }
        function onKey(e){
          if(e.key === 'Enter'){ e.preventDefault(); finish(true); }
          if(e.key === 'Escape'){ e.preventDefault(); finish(false); }
        }
        function onBlur(){ finish(true); }
        textDiv.addEventListener('keydown', onKey);
        textDiv.addEventListener('blur', onBlur);
      }

      function setDueDate(item){
        const current = item.due ? new Date(item.due).toISOString().slice(0,10) : '';
        const picked = prompt('Set due date (YYYY-MM-DD). Leave empty to clear.', current) || '';
        if(picked === ''){ item.due = null; }
        else if(/^\d{4}-\d{2}-\d{2}$/.test(picked)){
          const d = new Date(picked + 'T00:00:00');
          if(!isNaN(+d)) item.due = d.toISOString();
        } else {
          alert('Invalid date format. Use YYYY-MM-DD');
          return;
        }
        save(); render();
      }

      function removeItem(id){
        items = items.filter(i=>i.id !== id);
        save(); render();
      }

      function addItem(){
        const text = input.value.trim();
        if(!text) return;
        items.push({ id: uid(), text, completed:false, due:null, createdAt: new Date().toISOString() });
        input.value = '';
        save(); render();
      }

      function clearCompleted(){
        items = items.filter(i=>!i.completed);
        save(); render();
      }

      function setFilter(next){
        filter = next; render();
        for(const tab of filterTabs){ tab.setAttribute('aria-current', tab.dataset.filter===filter ? 'true' : 'false'); }
      }

      function exportJSON(){
        const blob = new Blob([JSON.stringify(items, null, 2)], {type:'application/json'});
        const url = URL.createObjectURL(blob);
        const a = Object.assign(document.createElement('a'), { href:url, download: 'todos.json' });
        document.body.appendChild(a); a.click(); a.remove();
        URL.revokeObjectURL(url);
      }

      function importJSON(){
        const input = document.createElement('input');
        input.type = 'file'; input.accept = '.json,application/json';
        input.onchange = () => {
          const file = input.files[0]; if(!file) return;
          const reader = new FileReader();
          reader.onload = () => {
            try{
              const data = JSON.parse(reader.result);
              if(Array.isArray(data)){
                items = data.map(x=>({ id: x.id || uid(), text: String(x.text||'').trim(), completed: !!x.completed, due: x.due || null, createdAt: x.createdAt || new Date().toISOString() })).filter(x=>x.text);
                save(); render();
              } else throw new Error('Invalid format');
            }catch(err){ alert('Invalid JSON file'); }
          };
          reader.readAsText(file);
        };
        input.click();
      }

      function toggleTheme(){
        const dark = document.documentElement.dataset.theme !== 'light';
        if(dark){
          document.documentElement.dataset.theme = 'light';
          // simple light palette
          document.documentElement.style.setProperty('--bg', '#f1f5f9');
          document.documentElement.style.setProperty('--panel', '#ffffff');
          document.documentElement.style.setProperty('--text', '#0f172a');
          document.documentElement.style.setProperty('--muted', '#475569');
          document.documentElement.style.setProperty('--ring', '#cbd5e1');
          document.documentElement.style.setProperty('--chip', '#e2e8f0');
        }else{
          document.documentElement.dataset.theme = 'dark';
          document.documentElement.style.cssText = '';
        }
      }

      // Events
      addBtn.addEventListener('click', addItem);
      input.addEventListener('keydown', (e)=>{ if(e.key==='Enter') addItem(); });
      clearCompletedBtn.addEventListener('click', clearCompleted);
      exportBtn.addEventListener('click', exportJSON);
      importBtn.addEventListener('click', importJSON);
      themeBtn.addEventListener('click', toggleTheme);
      filterTabs.forEach(tab=> tab.addEventListener('click', ()=> setFilter(tab.dataset.filter)) );

      // Init
      render();
    })();
  </script>
</body>
</html>