/* Ai-DOP 第三方对接模拟器 · 本地控制台脚本
 * 安全约束：不使用 localStorage/sessionStorage 保存任何认证信息；Secret 只在服务端。
 */
'use strict';

const $ = (id) => document.getElementById(id);

async function api(path, options = {}) {
  const resp = await fetch(path, {
    headers: { 'Content-Type': 'application/json' },
    ...options,
  });
  const text = await resp.text();
  let data;
  try { data = text ? JSON.parse(text) : {}; } catch { data = text; }
  if (!resp.ok) {
    const detail = (data && data.detail) ? data.detail : data;
    throw new Error(typeof detail === 'string' ? detail : JSON.stringify(detail, null, 2));
  }
  return data;
}

function show(el, data) {
  $(el).textContent = typeof data === 'string' ? data : JSON.stringify(data, null, 2);
}

function setError(el, ex) {
  $(el).textContent = '❌ ' + (ex && ex.message ? ex.message : String(ex));
}

/* ---------------- Tabs ---------------- */
document.querySelectorAll('nav button').forEach((btn) => {
  btn.addEventListener('click', () => {
    document.querySelectorAll('nav button').forEach((b) => b.classList.remove('active'));
    document.querySelectorAll('.tab').forEach((t) => t.classList.remove('active'));
    btn.classList.add('active');
    $(btn.dataset.tab).classList.add('active');
  });
});

/* ---------------- 全局状态 ---------------- */
let CATALOG = null;
let SCENARIOS = null;

function objects() { return (CATALOG && CATALOG.objects) || []; }

function findObj(code) { return objects().find((o) => o.objectCode === code); }

function channelSpec(obj, channel) {
  if (!obj) return null;
  return { DB_SYNC: obj.dbSync, API_PULL: obj.apiPull, API_INBOUND: obj.apiInbound }[channel] || null;
}

function fillObjectSelect(sel, filterFn) {
  sel.innerHTML = '';
  objects().filter(filterFn || (() => true)).forEach((o) => {
    const opt = document.createElement('option');
    opt.value = o.objectCode;
    opt.textContent = `${o.objectCode} · ${o.businessName}`;
    sel.appendChild(opt);
  });
}

/* ---------------- 环境状态 ---------------- */
async function refreshStatus() {
  try {
    const s = await api('/api/status');
    const miss = [];
    if (!s.inbound.accessKeyLoaded) miss.push('AIDOP_SIM_INBOUND_ACCESS_KEY');
    if (!s.inbound.secretLoaded) miss.push('AIDOP_SIM_INBOUND_SECRET');
    if (!s.mysql.passwordLoaded) miss.push('AIDOP_SIM_MYSQL_PASSWORD');
    const banner = $('env-banner');
    if (miss.length) {
      banner.className = 'banner warn';
      banner.textContent = `⚠ 缺少环境变量：${miss.join('、')}（Secret 只从环境变量读取，页面不提供输入）`;
    } else {
      banner.className = 'banner ok';
      banner.textContent = `✓ 凭据已加载（AccessKey ${s.inbound.accessKeyMasked}）`;
    }
    $('mock-state').textContent = s.mockApi.running
      ? `运行中 :${s.mockApi.port}（${s.mockApi.authMode}）` : '未运行';
    $('mock-state').className = 'state ' + (s.mockApi.running ? 'ok' : 'warn');
    show('security-output', s);
    const counts = s.objectCounts;
    $('run-object-info').dataset.counts = JSON.stringify(counts);
  } catch (ex) {
    $('env-banner').className = 'banner err';
    $('env-banner').textContent = '❌ 控制服务不可用：' + ex.message;
  }
}

/* ---------------- 对象测试页 ---------------- */
function currentRunId() {
  return $('run-id').value.trim() || null;
}

function refreshChannelState() {
  const obj = findObj($('run-object').value);
  const channel = $('run-channel').value;
  const spec = channelSpec(obj, channel);
  const el = $('run-channel-state');
  if (!obj) { el.textContent = ''; return; }
  if (!spec || !spec.supported) {
    el.className = 'state err';
    el.textContent = `代码层 UNSUPPORTED：${(spec && spec.reason) || '该通道不支持'}`;
    $('btn-exec').disabled = true;
  } else {
    el.className = 'state ok';
    const extra = spec.entityCode ? `（entityCode=${spec.entityCode}，契约 ${spec.contractVersion || 'v1'}）`
      : spec.table ? `（源表 ${spec.table}）` : spec.path ? `（路径 ${spec.path}）` : '';
    el.textContent = `代码层 SUPPORTED${extra}；配置层需预检实测`;
    $('btn-exec').disabled = false;
  }
}

async function loadSample() {
  try {
    const obj = $('run-object').value;
    const runId = currentRunId();
    const qs = runId ? `?runId=${encodeURIComponent(runId)}` : '';
    const data = await api(`/api/sample/${obj}${qs}`);
    $('run-id').value = data.runId;
    const channel = $('run-channel').value;
    let rows = [];
    let missing = [];
    if (channel === 'DB_SYNC' && data.dbSync) rows = data.dbSync;
    else if (channel === 'API_PULL' && data.apiPull) rows = data.apiPull;
    else if (channel === 'API_INBOUND' && data.apiInbound) {
      rows = data.apiInbound.rows;
      missing = data.apiInbound.missingRequired || [];
    }
    $('run-rows').value = JSON.stringify(rows, null, 2);
    $('run-missing').textContent = missing.length
      ? `⚠ 样例缺少契约必填字段：${missing.join('、')}（推数将被部分拒绝，请补全样例）` : '';
  } catch (ex) { alert('加载样例失败：' + ex.message); }
}

function parseRows() {
  const text = $('run-rows').value.trim();
  if (!text) return null;
  const rows = JSON.parse(text);
  if (!Array.isArray(rows)) throw new Error('样例必须是 JSON 数组');
  return rows;
}

async function execRun() {
  const obj = findObj($('run-object').value);
  const channel = $('run-channel').value;
  const spec = channelSpec(obj, channel);
  if (!spec || !spec.supported) { alert('该对象不支持此通道（代码层 UNSUPPORTED）'); return; }
  try {
    const rows = parseRows();
    const runId = currentRunId();
    let result;
    if (channel === 'DB_SYNC') {
      await api('/api/db/ensure', { method: 'POST', body: JSON.stringify({ objectCode: obj.objectCode, runId, rows }) });
      result = await api('/api/db/load', { method: 'POST', body: JSON.stringify({ objectCode: obj.objectCode, runId, rows }) });
      result.hint = '模拟源库已装载；请在 Ai-DOP 配置页登记 SIM_MODE3_DB 来源后，由模块同步入口触发 MdpDbPullExecutor 真实拉取';
    } else if (channel === 'API_PULL') {
      result = await api('/api/mock-api/control', {
        method: 'POST',
        body: JSON.stringify({ override_path: spec.path, override_rows: rows || [] }),
      });
      result = {
        ok: true, overridePath: spec.path,
        rowCount: (rows || []).length,
        hint: '适配样例已挂载到 Mock API；请确认 Mock 已启动、Ai-DOP 已登记 SIM_MODE3_API 来源，由 MdpApiPullExecutor 真实拉取',
        layers: { code: 'SUPPORTED', config: 'READY(模拟端)', data: 'NOT_RUN' },
      };
    } else {
      result = await api('/api/inbound/exec', {
        method: 'POST',
        body: JSON.stringify({ objectCode: obj.objectCode, operation: 'push', case: 'happy', runId, rows }),
      });
    }
    renderRunResult(result);
  } catch (ex) {
    $('run-layers').innerHTML = '';
    setError('run-output', ex);
  }
}

function renderRunResult(result) {
  const layers = result.layers || {};
  $('run-layers').innerHTML = [
    `<span class="chip">代码层：${layers.code || '—'}</span>`,
    `<span class="chip">配置层：${layers.config || '—'}</span>`,
    `<span class="chip">数据层：${layers.data || '—'}</span>`,
  ].join(' ');
  show('run-output', result);
  show('run-sql', (result.followupSql || []).join('\n') || '—');
}

async function precheckRun() {
  const obj = findObj($('run-object').value);
  const channel = $('run-channel').value;
  try {
    const base = await api('/api/precheck');
    let out = { precheck: base };
    if (channel === 'API_INBOUND' && (obj.apiInbound || {}).supported) {
      out.entityPrecheck = await api(`/api/precheck/inbound/${obj.apiInbound.entityCode}`);
    }
    out.aidopConfigSuggestion = await api(`/api/db/aidop-config/${obj.objectCode}`);
    show('run-output', out);
    const cfg = (out.entityPrecheck || {}).configState;
    $('run-layers').innerHTML = [
      `<span class="chip">代码层：SUPPORTED</span>`,
      `<span class="chip">配置层：${cfg || (base.aidop.reachable ? '待人工核对来源/实体登记' : 'SOURCE_UNREACHABLE')}</span>`,
      `<span class="chip">数据层：NOT_RUN</span>`,
    ].join(' ');
  } catch (ex) { setError('run-output', ex); }
}

/* ---------------- 场景页 ---------------- */
function renderScenarioGraph() {
  const sc = (SCENARIOS.scenarios || []).find((s) => s.scenarioId === $('scenario-select').value);
  if (!sc) return;
  $('scenario-desc').textContent = sc.description;
  $('scenario-graph').innerHTML = sc.nodes.map((n) => {
    const obj = findObj(n.objectCode);
    const spec = channelSpec(obj, n.channel);
    const ok = spec && spec.supported;
    return `<div class="node ${ok ? 'ok' : 'no'}">
      <b>${n.objectCode}</b><br/>
      <span>${n.channel}</span><br/>
      <small>${ok ? (n.relationKey || '') : '该通道不支持'}</small>
    </div>`;
  }).join('<span class="arrow">→</span>');
}

async function runScenario() {
  try {
    const result = await api('/api/scenarios/run', {
      method: 'POST',
      body: JSON.stringify({ scenarioId: $('scenario-select').value, runId: currentRunId() }),
    });
    show('scenario-output', result);
  } catch (ex) { setError('scenario-output', ex); }
}

/* ---------------- Mock API 页 ---------------- */
async function mockControl(payload) {
  try { show('mock-audit', await api('/api/mock-api/control', { method: 'POST', body: JSON.stringify(payload) })); refreshStatus(); }
  catch (ex) { setError('mock-audit', ex); }
}

/* ---------------- DB 页 ---------------- */
async function dbAction(path, payload, out) {
  try { show(out, await api(path, { method: 'POST', body: JSON.stringify(payload) })); }
  catch (ex) { setError(out, ex); }
}

/* ---------------- Inbound 页 ---------------- */
async function precheckAll() {
  try { show('inbound-precheck', await api('/api/precheck/inbound')); }
  catch (ex) { setError('inbound-precheck', ex); }
}

async function inboundExec() {
  const body = {
    entityCode: $('inbound-entity').value,
    operation: $('inbound-op').value,
    case: $('inbound-case').value,
    syncBatchId: $('inbound-batch').value.trim() || null,
    snapshotId: $('inbound-snapshot').value.trim() || null,
    bizDate: $('inbound-date').value.trim() || null,
    runId: currentRunId(),
  };
  try { show('inbound-output', await api('/api/inbound/exec', { method: 'POST', body: JSON.stringify(body) })); }
  catch (ex) { setError('inbound-output', ex); }
}

/* ---------------- 初始化 ---------------- */
async function init() {
  CATALOG = await api('/api/catalog');
  SCENARIOS = await api('/api/scenarios');

  fillObjectSelect($('run-object'));
  fillObjectSelect($('db-object'), (o) => (o.dbSync || {}).supported);
  const inboundSel = $('inbound-entity');
  inboundSel.innerHTML = '';
  const codes = [...new Set(objects()
    .filter((o) => (o.apiInbound || {}).supported)
    .map((o) => o.apiInbound.entityCode))].sort();
  codes.forEach((c) => {
    const opt = document.createElement('option');
    opt.value = c; opt.textContent = c;
    inboundSel.appendChild(opt);
  });

  const scSel = $('scenario-select');
  (SCENARIOS.scenarios || []).forEach((s) => {
    const opt = document.createElement('option');
    opt.value = s.scenarioId; opt.textContent = `${s.name}（${s.scenarioId}）`;
    scSel.appendChild(opt);
  });

  $('run-object').addEventListener('change', refreshChannelState);
  $('run-channel').addEventListener('change', refreshChannelState);
  $('btn-load-sample').addEventListener('click', loadSample);
  $('btn-exec').addEventListener('click', execRun);
  $('btn-precheck').addEventListener('click', precheckRun);
  $('scenario-select').addEventListener('change', renderScenarioGraph);
  $('btn-scenario-run').addEventListener('click', runScenario);

  $('btn-mock-start').addEventListener('click', async () => {
    try { show('mock-audit', await api('/api/mock-api/start', { method: 'POST' })); refreshStatus(); }
    catch (ex) { setError('mock-audit', ex); }
  });
  $('btn-mock-stop').addEventListener('click', async () => {
    try { show('mock-audit', await api('/api/mock-api/stop', { method: 'POST' })); refreshStatus(); }
    catch (ex) { setError('mock-audit', ex); }
  });
  $('btn-mock-apply').addEventListener('click', () => mockControl({
    auth_mode: $('mock-auth').value,
    delay_seconds: parseFloat($('mock-delay').value || '0'),
    force_status: $('mock-force').value ? parseInt($('mock-force').value, 10) : null,
    response_path: $('mock-resp-path').value.trim() || 'data.list',
  }));
  $('btn-mock-clear-overrides').addEventListener('click', () => mockControl({ clear_overrides: true }));
  $('btn-mock-audit').addEventListener('click', async () => {
    try { show('mock-audit', await api('/api/mock-api/audit')); } catch (ex) { setError('mock-audit', ex); }
  });

  const dbObj = () => $('db-object').value;
  $('btn-db-ensure').addEventListener('click', () => dbAction('/api/db/ensure', { objectCode: dbObj(), runId: currentRunId() }, 'db-output'));
  $('btn-db-load').addEventListener('click', () => dbAction('/api/db/load', { objectCode: dbObj(), runId: currentRunId() }, 'db-output'));
  $('btn-db-reset').addEventListener('click', () => dbAction('/api/db/reset', { objectCode: dbObj() }, 'db-output'));
  $('btn-db-stats').addEventListener('click', async () => {
    try { show('db-output', await api(`/api/db/stats/${dbObj()}`)); } catch (ex) { setError('db-output', ex); }
  });
  $('btn-db-config').addEventListener('click', async () => {
    try { show('db-config-output', await api(`/api/db/aidop-config/${dbObj()}`)); } catch (ex) { setError('db-config-output', ex); }
  });

  $('btn-precheck-all').addEventListener('click', precheckAll);
  $('btn-inbound-exec').addEventListener('click', inboundExec);
  $('btn-runs-refresh').addEventListener('click', async () => {
    try { show('runs-output', await api('/api/runs')); } catch (ex) { setError('runs-output', ex); }
  });

  refreshChannelState();
  renderScenarioGraph();
  await refreshStatus();
  setInterval(refreshStatus, 15000);
}

init().catch((ex) => {
  $('env-banner').className = 'banner err';
  $('env-banner').textContent = '❌ 初始化失败：' + ex.message;
});