/* 元景游戏工作台：game 聚合根单页编辑器 */
(function () {
  function api(path, params) {
    return fetch(path, {
      method: 'POST',
      headers: {'Content-Type': 'application/json'},
      body: JSON.stringify(params || {})
    }).then(function (r) { return r.json(); });
  }
  function base() { return '/scense_game'; }

  var state = { game: null, data: null, sel: null }; // sel: {type, id, name}

  function msg(t, ok) {
    var el = document.getElementById('msg');
    el.textContent = t;
    el.className = ok ? 'ok' : 'err';
  }

  function saveGame() {
    var name = document.getElementById('game_name').value.trim();
    if (state.game) { msg('游戏已存在: ' + state.game.id, true); return; }
    if (!name) { msg('先填游戏名称', false); return; }
    api(base() + '/game/api/game_create.dspy', {name: name,
        description: document.getElementById('game_shared').checked ? 'shared' : 'independent'})
      .then(function (r) {
        if (r.success) { msg('游戏创建成功，世界已自动建立', true); reload(); }
        else msg(r.message || '创建失败', false);
      });
  }

  function reload() {
    // 列表取第一个 game 或新建后带入
    api(base() + '/game/api/game_list.dspy', {}).then(function (r) {
      var games = (r.data && r.data.games) || [];
      if (!games.length) { state.game = null; renderTree(null); return; }
      var gid = games[0].game_id || games[0].id;
      api(base() + '/game/api/game_workbench.dspy', {game_id: gid}).then(function (w) {
        if (!w.success) { msg(w.message, false); return; }
        state.game = w.data.game; state.data = w.data;
        document.getElementById('game_name').value = (w.data.game && w.data.game.name) || '';
        renderTree(w.data);
        if (!state.sel) selectWorld();
        else loadSel();
      });
    });
  }

  function renderTree(d) {
    var el = document.getElementById('tree_body');
    if (!d || !d.world) { el.innerHTML = '<div style="color:#9CA3AF">尚无游戏，先填名称保存</div>'; return; }
    var h = '';
    h += '<div class="node' + (state.sel && state.sel.type === 'world' ? ' sel' : '') + '" onclick="wb.selObj(\'world\',\'' + d.world.id + '\',\'' + esc(d.world.name) + '\')">🌍 ' + esc(d.world.name) + '</div>';
    (d.scenes || []).forEach(function (s) {
      h += '<div class="node' + (state.sel && state.sel.id === s.id ? ' sel' : '') + '" style="margin-left:12px" onclick="wb.selObj(\'scene\',\'' + s.id + '\',\'' + esc(s.name) + '\')">🎬 ' + esc(s.name) + '</div>';
    });
    h += '<div class="node" style="margin-left:12px;color:#2563EB" onclick="wb.addScene()">＋ 场景</div>';
    (d.entities || []).forEach(function (e) {
      h += '<div class="node' + (state.sel && state.sel.id === e.id ? ' sel' : '') + '" style="margin-left:24px" onclick="wb.selObj(\'entity\',\'' + e.id + '\',\'' + esc(e.name) + '\')">📦 ' + esc(e.name) + (e.scene_id ? '' : '（世界级）') + '</div>';
    });
    h += '<div class="node" style="margin-left:24px;color:#2563EB" onclick="wb.addEntity()">＋ 实体</div>';
    el.innerHTML = h;
  }
  function esc(s) { return String(s || '').replace(/'/g, "\\'").replace(/</g, '&lt;'); }

  function selectWorld() { if (state.data && state.data.world) selObj('world', state.data.world.id, state.data.world.name); }

  function selObj(type, id, name) {
    state.sel = {type: type, id: id, name: name};
    document.getElementById('cur_obj').textContent =
      ({world: '🌍 世界', scene: '🎬 场景', entity: '📦 实体'})[type] + ' · ' + name;
    renderTree(state.data);
    loadScript();
  }

  function bindParams() {
    var s = state.sel;
    if (!s) return null;
    var p = {game_id: state.game.id, trigger_event: document.getElementById('event_sel').value};
    if (s.type === 'world') p.world_id = s.id;
    if (s.type === 'scene') p.scene_id = s.id;
    if (s.type === 'entity') p.entity_id = s.id;
    return p;
  }

  function loadScript() {
    var p = bindParams();
    if (!p) return;
    var sc = (state.data.scripts || []).find(function (x) {
      return (state.sel.type === 'world' && x.world_id === state.sel.id && x.trigger_event === p.trigger_event) ||
             (state.sel.type === 'scene' && x.scene_id === state.sel.id && x.trigger_event === p.trigger_event) ||
             (state.sel.type === 'entity' && x.entity_id === state.sel.id && x.trigger_event === p.trigger_event);
    });
    document.getElementById('code').value = sc ? (sc.content || '') : '';
    state.cur_script = sc || null;
  }

  function saveScript() {
    var p = bindParams();
    if (!p) { msg('先选择对象', false); return; }
    p.name = state.sel.name + '_' + p.trigger_event;
    p.code = 'SC_' + (state.cur_script ? state.cur_script.code : (state.sel.id.slice(0, 8) + '_' + p.trigger_event));
    p.content = document.getElementById('code').value;
    p.script_type = '0';
    if (state.cur_script) p.id = state.cur_script.id;
    var url = state.cur_script ? '/script_engine/api/script_engine_update.dspy' : '/script_engine/api/script_engine_create.dspy';
    api(url, p).then(function (r) {
      if (r && r.success === false) { msg(r.error || r.message || '保存失败', false); return; }
      msg(state.cur_script ? '脚本已更新' : '脚本已保存', true);
      reload();
    }).catch(function (e) { msg('保存失败: ' + e, false); });
  }

  function validate() {
    api('/script_engine/api/validate_script.dspy', {content: document.getElementById('code').value})
      .then(function (r) { msg(JSON.stringify(r).slice(0, 200), true); });
  }

  function addScene() {
    var name = prompt('场景名称');
    if (!name) return;
    api(base() + '/game/api/scene_add.dspy', {game_id: state.game.id, name: name})
      .then(function (r) { r.success ? (msg('场景已加', true), reload()) : msg(r.message, false); });
  }

  function addEntity() {
    var name = prompt('实体名称（留空场景ID=世界级实体）');
    if (!name) return;
    var sceneId = state.sel && state.sel.type === 'scene' ? state.sel.id : '';
    api(base() + '/game/api/entity_add.dspy', {game_id: state.game.id, scene_id: sceneId, name: name})
      .then(function (r) { r.success ? (msg('实体已加', true), reload()) : msg(r.message, false); });
  }

  function test() {
    if (!state.game) { msg('先保存游戏', false); return; }
    var wid = state.data && state.data.world ? state.data.world.id : '';
    window.open('/scense_demo/demo_viewer.ui?world_id=' + wid + '&game_id=' + state.game.id, '_blank');
  }

  window.wb = {saveGame: saveGame, reload: reload, selObj: selObj, addScene: addScene,
               addEntity: addEntity, saveScript: saveScript, validate: validate, test: test};
  reload();
})();