'use strict';
const fs = require('node:fs');
const path = require('node:path');
const cp = require('node:child_process');
const assert = require('node:assert/strict');
const vm = require('node:vm');
const { isDeepStrictEqual } = require('node:util');

const APP = 'APP_ZQ3I7XO2RSHDJ4QDEVNB';
const FORM = 'FORM-1741B1D56FE04480B0E4F5412FF9AE6ATYGR';

/** @returns {object} 使用已安装OpenYida的编译、认证、校验和发布传输。 */
function toolchain() {
  const executable = cp.execFileSync('which', ['openyida'], { encoding: 'utf8' }).trim();
  const root = path.resolve(path.dirname(fs.realpathSync(executable)), '..');
  return {
    transform: require(root + '/lib/core/babel-transform').default,
    guard: require(root + '/lib/core/no-emoji-guard'),
    client: require(root + '/lib/core/yida-client'),
    utils: require(root + '/lib/core/utils'),
    transport: require(root + '/lib/app/publish').sendSaveRequestWithAuth
  };
}

/** @param {object} value Schema响应或Schema @returns {object} 完整Schema */
function schemaContent(value) {
  assert.ok(value && typeof value === 'object' && value.success !== false, 'Schema响应无效');
  const content = value.content === undefined ? value : value.content;
  const schema = typeof content === 'string' ? JSON.parse(content) : content;
  assert.ok(schema && Array.isArray(schema.pages) && schema.actions, '缺少页面或动作配置');
  return schema;
}

/** @param {object} schema 完整Schema @returns {{node:object,path:string}} 唯一原生Jsx节点 */
function jsxNode(schema) {
  const found = [];
  /** @param {object} value 节点 @param {string} pointer JSON路径 @returns {void} */
  function visit(value, pointer) {
    if (!value || typeof value !== 'object') return;
    if (value.componentName === 'Jsx' && value.props && value.props.render) found.push({ node: value, path: pointer });
    for (const [key, child] of Object.entries(value)) visit(child, pointer + '/' + key);
  }
  visit(schema.pages, '/pages');
  assert.equal(found.length, 1, '正式页必须包含唯一的既有Jsx渲染节点');
  return found[0];
}

/** @param {string} source 源码 @param {boolean} render 是否为独立渲染 @param {object} tools 工具链 @returns {string} 平台编译码 */
function compile(source, render, tools) {
  const result = tools.transform(source, {}, render, { RE_VERSION: '7.4.0' });
  if (result.error) throw result.error;
  assert.ok(result.compiled, '平台编译码不能为空');
  new vm.Script(render ? '(' + result.compiled + ')' : result.compiled);
  return result.compiled;
}

/** @param {object} baseline 最新基线 @param {string} actions 合并后的JS @param {string} render 合并后的JSX @param {object} tools 工具链 @returns {{schema:object,paths:string[],functions:number}} 限定范围候选 */
function buildCandidate(baseline, actions, render, tools = toolchain()) {
  const schema = structuredClone(baseline);
  const target = jsxNode(schema);
  const module = { source: actions, compiled: compile(actions, false, tools) };
  const names = [...actions.matchAll(/export\s+(?:async\s+)?function\s+(\w+)\s*\(/g)].map(match => match[1]);
  assert.ok(names.length > 0, '动作模块没有导出函数');
  assert.equal(names.length, new Set(names).size, '动作函数不能重名');
  for (const item of schema.actions.list) assert.ok(names.includes(item.id), '不能移除原动作：' + item.id);
  schema.actions.module = { ...schema.actions.module, ...module };
  const oldNames = new Set(schema.actions.list.map(item => item.id));
  schema.actions.list.push(...names.filter(id => !oldNames.has(id)).map(id => ({ id, title: id })));
  target.node.props.render = { ...target.node.props.render, source: render, compiled: compile(render, true, tools) };
  const paths = ['/actions/module/source', '/actions/module/compiled', '/actions/list',
    target.path + '/props/render/source', target.path + '/props/render/compiled'];
  // prd 只清理当前页面内的连接器描述装饰，不触及URL、参数、鉴权或连接器主资源。
  const root = schema.pages[0].componentsTree[0];
  (root.dataSource.online || []).forEach((dataSource, index) => {
    const connector = dataSource.options && dataSource.options.connector;
    if (!connector || typeof connector.description !== 'string') return;
    const cleaned = connector.description.replace(tools.guard.EMOJI_PATTERN, '');
    if (cleaned === connector.description) return;
    connector.description = cleaned;
    paths.push('/pages/0/componentsTree/0/dataSource/online/' + index + '/options/connector/description');
  });
  tools.guard.assertNoEmojiInValue(schema, { artifact: 'TimeCard双文件候选', code: 'OPENYIDA_FORM_SCHEMA_EMOJI_FORBIDDEN' });
  verifyUnchanged(baseline, schema, paths);
  return { schema, paths, functions: names.length };
}

/** @param {object} target 待规范化副本 @param {string} pointer 已验证JSON路径 @returns {void} */
function omit(target, pointer) {
  const parts = pointer.slice(1).split('/');
  const parent = parts.slice(0, -1).reduce((node, key) => node[key], target);
  delete parent[parts.at(-1)];
}

/** @param {object} before 基线 @param {object} after 候选或回读 @param {string[]} paths 允许变化路径 @returns {void} */
function verifyUnchanged(before, after, paths) {
  const a = structuredClone(before), b = structuredClone(after);
  for (const pointer of [...paths, '/gmtModified']) { omit(a, pointer); omit(b, pointer); }
  assert.deepEqual(b, a, '检测到发布范围外的Schema变化');
}

/** @param {object} baseline 候选绑定基线 @param {object} current 保存前线上基线 @returns {void} */
function assertCurrentBaseline(baseline, current) {
  assert.ok(Number.isFinite(baseline.gmtModified), '缺少服务端版本标识');
  assert.ok(isDeepStrictEqual(baseline, current), '线上页面已变化，必须重新拉取并合并；停止发布');
}

/** @param {object} authRef 平台登录引用 @param {object} tools 工具链 @returns {Promise<object>} 只读最新Schema */
async function fetchSchema(authRef, tools) {
  const result = await tools.utils.requestWithAutoLogin(auth => tools.utils.httpGet(auth.baseUrl,
    '/alibaba/web/' + APP + '/_view/query/formdesign/getFormSchema.json',
    { formUuid: FORM, schemaVersion: 'V5' }), authRef);
  assert.ok(result && result.success !== false && !result.__needLogin && !result.__csrfExpired, '读取线上Schema失败');
  return schemaContent(result);
}

/** @param {object} baseline 已备份最新Schema @param {object} candidate 已验证候选 @param {string} output 证据目录 @param {object} tools 工具链 @returns {Promise<void>} 绑定原版本保存并独立回读 */
async function publish(baseline, candidate, output, tools) {
  const auth = tools.client.createAuthRef();
  const current = await fetchSchema(auth, tools);
  assertCurrentBaseline(baseline, current);
  // fixme 保存始终传候选绑定的原revision，写前及写入时任意并发变化均不能被覆盖。
  fs.writeFileSync(path.join(output, '发布尝试.json'), JSON.stringify({ formUuid: FORM, revision: baseline.gmtModified, attemptedAt: new Date().toISOString() }, null, 2));
  const result = await tools.transport(auth, JSON.stringify(candidate.schema), APP, FORM, baseline.gmtModified);
  fs.writeFileSync(path.join(output, '发布回执.json'), JSON.stringify(result, null, 2));
  assert.ok(result && result.success, '发布未成功；先只读核对回执及线上状态，不自动重试');
  const readback = await fetchSchema(auth, tools);
  fs.writeFileSync(path.join(output, '发布后Schema.json'), JSON.stringify(readback, null, 2));
  verifyUnchanged(candidate.schema, readback, []);
  const receipt = { success: true, formUuid: FORM, version: result.content && result.content.version,
    gmtModified: readback.gmtModified, originalRevision: baseline.gmtModified,
    codeAndConfigurationVerified: true, retainedDataSources: readback.pages[0].componentsTree[0].dataSource.online.length,
    runtimeSmokeVerified: false, url: auth.baseUrl + '/' + APP + '/workbench/' + FORM };
  fs.writeFileSync(path.join(output, '独立回读验收.json'), JSON.stringify(receipt, null, 2));
  console.log(JSON.stringify(receipt));
}

/** @returns {Promise<void>} 默认仅生成候选，显式--apply才实际发布指定正式页 */
async function main() {
  const [baselineFile, outputDir, ...flags] = process.argv.slice(2);
  assert.ok(baselineFile && outputDir && flags.every(flag => flag === '--apply'),
    '用法：node pages/scripts/publish-timecard-main.cjs <最新Schema文件> <证据目录> [--apply]');
  const baseline = schemaContent(JSON.parse(fs.readFileSync(baselineFile, 'utf8')));
  const tools = toolchain();
  const actions = fs.readFileSync(path.join(__dirname, '../src/timecard-main.actions.js'), 'utf8');
  const render = fs.readFileSync(path.join(__dirname, '../src/timecard-main.render.jsx'), 'utf8');
  const candidate = buildCandidate(baseline, actions, render, tools);
  fs.mkdirSync(outputDir, { recursive: true });
  assert.ok(!fs.existsSync(path.join(outputDir, '发布尝试.json')), '证据目录已存在发布尝试，请先核对，不能盲目重试');
  fs.writeFileSync(path.join(outputDir, '候选Schema.json'), JSON.stringify(candidate.schema, null, 2));
  fs.writeFileSync(path.join(outputDir, '候选校验.json'), JSON.stringify({ functions: candidate.functions, allowedPaths: candidate.paths, baselineRevision: baseline.gmtModified }, null, 2));
  if (flags.includes('--apply')) await publish(baseline, candidate, outputDir, tools);
  else console.log(JSON.stringify({ prepared: true, functions: candidate.functions, changedPaths: candidate.paths.length, published: false }));
}

module.exports = { buildCandidate, assertCurrentBaseline, verifyUnchanged, schemaContent };
if (require.main === module) main().catch(error => { console.error(error.message); process.exitCode = 1; });