{% extends "base.html" %}
{% set active = 'downloads' %}
{% block title %}Téléchargements — Ohm Stream{% endblock %}

{% block content %}
<div x-data="downloadsPage()" x-init="connect()">
  <div style="display:flex;align-items:center;gap:0.8rem;margin-bottom:1.6rem">
    <div>
      <h1 class="page-title">Téléchargements</h1>
      <p class="page-sub" style="margin-bottom:0">
        <span x-text="items.length"></span> tâche(s) —
        <span :style="connected ? 'color:var(--success)' : 'color:var(--danger)'"
              x-text="connected ? '● temps réel' : '○ reconnecté…'"></span>
      </p>
    </div>
    <div style="flex:1"></div>
    <button class="btn btn-ghost btn-sm" @click="action('clear-finished')">🧹 Nettoyer</button>
    <button class="btn btn-danger btn-sm" @click="action('cancel-all')">✖ Tout annuler</button>
  </div>

  <template x-if="items.length === 0">
    <div class="empty-state"><div class="big">📭</div>Aucun téléchargement. Lance une recherche !</div>
  </template>

  <div class="episode-list">
    <template x-for="d in items" :key="d.id">
      <div class="dl-row">
        <div class="dl-head">
          <span class="status-pill" :class="'status-' + d.status" x-text="d.status_label"></span>
          <span class="dl-title" x-text="d.title"></span>
          <div class="dl-actions">
            <template x-if="d.status === 'downloading'">
              <button class="btn btn-sm btn-ghost" @click="action(d.id + '/pause')">⏸</button>
            </template>
            <template x-if="d.status === 'paused'">
              <button class="btn btn-sm btn-ghost" @click="action(d.id + '/resume')">▶</button>
            </template>
            <template x-if="['failed', 'cancelled'].includes(d.status)">
              <button class="btn btn-sm btn-ghost" @click="action(d.id + '/retry')">↻</button>
            </template>
            <template x-if="['pending', 'downloading', 'paused'].includes(d.status)">
              <button class="btn btn-sm btn-danger" @click="action(d.id + '/cancel')">✖</button>
            </template>
            <template x-if="d.status === 'done'">
              <a class="btn btn-sm" :href="'/watch/' + d.id">▶ Regarder</a>
            </template>
          </div>
        </div>
        <div style="display:flex;align-items:center;gap:0.9rem">
          <div class="progress">
            <div class="progress-fill" :class="d.status"
                 :style="`width:${d.percent ?? (d.status === 'done' ? 100 : 0)}%`"></div>
          </div>
          <span style="min-width:4rem;text-align:right;font-size:0.85rem;font-weight:600"
                x-text="d.percent != null ? d.percent + '%' : (d.status === 'done' ? '100%' : '—')"></span>
        </div>
        <div class="dl-stats">
          <span x-text="fmtBytes(d.downloaded_bytes) + ' / ' + (d.total_bytes ? fmtBytes(d.total_bytes) : '?')"></span>
          <span x-show="d.speed_bps" x-text="'⚡ ' + fmtBytes(d.speed_bps) + '/s'"></span>
          <span x-show="d.eta_seconds != null" x-text="'⏱ ' + fmtEta(d.eta_seconds)"></span>
          <span x-show="d.error" style="color:var(--danger)" x-text="d.error"></span>
        </div>
      </div>
    </template>
  </div>
</div>
{% endblock %}

{% block scripts %}
<script>
function downloadsPage() {
  return {
    items: [], connected: false, es: null,

    connect() {
      this.es = new EventSource('/api/downloads/events');
      this.es.onopen = () => this.connected = true;
      this.es.onerror = () => this.connected = false;
      this.es.onmessage = (ev) => {
        const msg = JSON.parse(ev.data);
        if (msg.type === 'snapshot') this.items = msg.items;
        else if (msg.type === 'update') this.upsert(msg.item);
      };
    },

    upsert(item) {
      const i = this.items.findIndex(d => d.id === item.id);
      if (i >= 0) this.items[i] = item;
      else this.items.unshift(item);
      this.sort();
    },

    sort() {
      const order = { downloading: 0, pending: 1, paused: 2 };
      this.items.sort((a, b) => (order[a.status] ?? 3) - (order[b.status] ?? 3));
    },

    async action(path) {
      await fetch('/api/downloads/' + path, { method: 'POST' });
      if (path === 'clear-finished') {
        const res = await fetch('/api/downloads');
        this.items = await res.json();
      }
    },

    fmtBytes(n) {
      if (n == null) return '?';
      const units = ['o', 'Ko', 'Mo', 'Go'];
      let i = 0;
      while (n >= 1024 && i < units.length - 1) { n /= 1024; i++; }
      return n.toFixed(i ? 1 : 0) + ' ' + units[i];
    },

    fmtEta(s) {
      if (s < 60) return s + 's';
      if (s < 3600) return Math.floor(s / 60) + 'min';
      return Math.floor(s / 3600) + 'h' + String(Math.floor((s % 3600) / 60)).padStart(2, '0');
    },
  };
}
</script>
{% endblock %}