import assert from 'node:assert/strict';
import test from 'node:test';
import {
  buildTemplatePreviewHtml,
  createPageTemplateCatalogService,
  mapTemplateCatalogRow,
  seedTemplateCatalogFromSkills,
} from './page-template-catalog.mjs';
import { isPageTemplateSkill } from './skills-registry.mjs';

test('isPageTemplateSkill detects page-template prefix', () => {
  assert.equal(isPageTemplateSkill('page-template-travel'), true);
  assert.equal(isPageTemplateSkill('page-template-campaign'), true);
  assert.equal(isPageTemplateSkill('static-page-publish'), false);
});

test('mapTemplateCatalogRow maps db row', () => {
  const item = mapTemplateCatalogRow({
    skill_name: 'page-template-travel',
    label: '旅游 Hero 模板',
    description: 'desc',
    preview_url: '/preview.png',
    price_cents: 990,
    currency: 'CNY',
    billing_mode: 'one_time',
    status: 'active',
    sort_order: 10,
    usage_count: 12,
    favorite_count: 3,
  });
  assert.equal(item.skillName, 'page-template-travel');
  assert.equal(item.priceCents, 990);
  assert.equal(item.chatSkillId, 'page-template-travel');
  assert.equal(item.usageCount, 12);
  assert.equal(item.favoriteCount, 3);
});

function createMockPool() {
  const state = {
    catalog: new Map(),
    purchases: new Map(),
    wallets: new Map(),
    ledger: [],
  };

  const pool = {
    state,
    async query(sql, params = []) {
      const text = String(sql);
      if (text.includes('CREATE TABLE IF NOT EXISTS h5_template_catalog')) return [[]];
      if (text.includes('CREATE TABLE IF NOT EXISTS h5_template_purchases')) return [[]];
      if (text.includes('CREATE TABLE IF NOT EXISTS h5_template_favorites')) return [[]];
      if (text.includes('CREATE TABLE IF NOT EXISTS h5_template_user_usage')) return [[]];
      if (text.includes('ALTER TABLE h5_template_catalog ADD COLUMN usage_count')) return [[]];
      if (text.includes('FROM h5_template_favorites')) return [[], []];
      if (text.includes('FROM h5_template_user_usage')) return [[], []];
      if (text.includes('INSERT INTO h5_template_favorites')) return [{ affectedRows: 1 }, []];
      if (text.includes('DELETE FROM h5_template_favorites')) return [{ affectedRows: 1 }, []];
      if (text.includes('usage_count = usage_count + 1')) return [{ affectedRows: 1 }, []];
      if (text.includes('favorite_count = favorite_count + 1') || text.includes('favorite_count = GREATEST')) {
        return [{ affectedRows: 1 }, []];
      }
      if (text.includes('INSERT INTO h5_template_user_usage')) return [{ affectedRows: 1 }, []];
      if (text.includes('INSERT INTO h5_template_catalog') && text.includes('ON DUPLICATE KEY UPDATE')) {
        const skillName = params[0];
        state.catalog.set(skillName, {
          skill_name: skillName,
          label: params[1],
          description: params[2],
          preview_url: params[3],
          price_cents: params[4],
          currency: 'CNY',
          billing_mode: params[5],
          status: 'active',
          sort_order: params[6],
        });
        return [{ affectedRows: 1 }, []];
      }
      if (text.includes('FROM h5_template_catalog') && text.includes("status = 'active'")) {
        return [[...state.catalog.values()], []];
      }
      if (text.includes('FROM h5_template_catalog WHERE skill_name = ?')) {
        const row = state.catalog.get(params[0]);
        return [row ? [row] : [], []];
      }
      if (text.includes('FROM h5_template_purchases') && text.includes('skill_name')) {
        const owned = [...state.purchases.values()].filter(
          (row) => row.user_id === params[0] && row.skill_name === params[1],
        );
        return [owned, []];
      }
      if (text.includes('FROM h5_template_purchases') && text.includes('WHERE user_id = ?')) {
        const rows = [...state.purchases.values()].filter((row) => row.user_id === params[0]);
        return [rows, []];
      }
      if (text.includes('INSERT INTO h5_template_purchases')) {
        const key = `${params[1]}:${params[2]}`;
        state.purchases.set(key, {
          id: params[0],
          user_id: params[1],
          skill_name: params[2],
          order_id: params[3],
          source: params[4],
          purchased_at: params[5],
          expires_at: params[6],
        });
        return [{ affectedRows: 1 }, []];
      }
      if (text.includes('SELECT balance_cents FROM h5_user_wallets')) {
        return [[{ balance_cents: state.wallets.get(params[0]) ?? 0 }], []];
      }
      if (text.includes('UPDATE h5_user_wallets')) {
        const delta = Number(params[0]);
        const userId = params[2];
        state.wallets.set(userId, (state.wallets.get(userId) ?? 0) - delta);
        return [{ affectedRows: 1 }, []];
      }
      if (text.includes('INSERT INTO h5_billing_ledger')) {
        state.ledger.push(params);
        return [{ affectedRows: 1 }, []];
      }
      if (text.includes('INSERT INTO h5_payment_orders')) {
        state.paymentOrders = state.paymentOrders ?? new Map();
        state.paymentOrders.set(params[0], {
          id: params[0],
          user_id: params[1],
          amount_cents: params[2],
          order_purpose_ref: params[11],
        });
        return [{ affectedRows: 1 }, []];
      }
      throw new Error(`Unhandled SQL in mock pool: ${text.slice(0, 120)}`);
    },
    async getConnection() {
      const conn = {
        async beginTransaction() {},
        async commit() {},
        async rollback() {},
        async release() {},
        query: (...args) => pool.query(...args),
      };
      return conn;
    },
  };
  return pool;
}

test('purchaseWithBalance grants skill and deducts wallet', async () => {
  const pool = createMockPool();
  pool.state.catalog.set('page-template-travel', {
    skill_name: 'page-template-travel',
    label: '旅游 Hero 模板',
    description: '',
    preview_url: null,
    price_cents: 990,
    currency: 'CNY',
    billing_mode: 'one_time',
    status: 'active',
    sort_order: 10,
  });
  pool.state.wallets.set('user-1', 5000);
  const grants = {};
  const userAuth = {
    async getUserSkills(userId) {
      return {
        ok: true,
        grantedSkills: Object.entries(grants[userId] ?? {})
          .filter(([, enabled]) => enabled)
          .map(([name]) => name),
      };
    },
    async setUserSkills(userId, patch) {
      grants[userId] = { ...(grants[userId] ?? {}), ...patch };
      return {
        ok: true,
        grantedSkills: Object.entries(grants[userId])
          .filter(([, enabled]) => enabled)
          .map(([name]) => name),
      };
    },
    async getUserById(userId) {
      return { id: userId, balance_cents: pool.state.wallets.get(userId) ?? 0 };
    },
  };
  const service = createPageTemplateCatalogService(pool, { userAuth, h5Root: process.cwd() });
  const result = await service.purchaseWithBalance('user-1', 'page-template-travel');
  assert.equal(result.ok, true);
  assert.equal(result.priceCents, 990);
  assert.equal(pool.state.wallets.get('user-1'), 4010);
  assert.deepEqual(result.grantedSkills, ['page-template-travel']);
});

test('buildTemplatePreviewHtml renders demo travel template', () => {
  const result = buildTemplatePreviewHtml('page-template-travel', process.cwd());
  assert.equal(result.ok, true);
  assert.equal(result.source, 'demo-fill');
  assert.match(result.html, /仙居玩水完全指南/);
  assert.doesNotMatch(result.html, /\{\{PAGE_TITLE\}\}/);
});

test('createWechatCheckout creates pending payment order', async () => {
  const pool = createMockPool();
  pool.state.catalog.set('page-template-travel', {
    skill_name: 'page-template-travel',
    label: '旅游 Hero 模板',
    description: '',
    preview_url: null,
    price_cents: 990,
    currency: 'CNY',
    billing_mode: 'one_time',
    status: 'active',
    sort_order: 10,
  });
  const userAuth = {
    async getUserById(userId) {
      return { id: userId, status: 'active', balance_cents: 0 };
    },
    async getWechatOpenidForUser() {
      return 'openid-1';
    },
    async setUserSkills() {
      return { ok: true, grantedSkills: [] };
    },
  };
  const wechatPay = {
    enabled: true,
    appId: 'wx-test',
    async createNativeOrder() {
      return { codeUrl: 'weixin://wxpay/bizpayurl?pr=test' };
    },
  };
  const service = createPageTemplateCatalogService(pool, { userAuth, wechatPay, h5Root: process.cwd() });
  const result = await service.createWechatCheckout({
    userId: 'user-1',
    skillName: 'page-template-travel',
    payScene: 'native',
    clientIp: '127.0.0.1',
  });
  assert.equal(result.ok, true);
  assert.equal(result.order.amountCents, 990);
  assert.equal(result.order.payMode, 'native');
  assert.ok(result.order.codeUrl);
});

test('fulfillWechatPurchaseLocked grants template skill', async () => {
  const pool = createMockPool();
  pool.state.catalog.set('page-template-travel', {
    skill_name: 'page-template-travel',
    label: '旅游 Hero 模板',
    description: '',
    preview_url: null,
    price_cents: 990,
    currency: 'CNY',
    billing_mode: 'one_time',
    status: 'active',
    sort_order: 10,
  });
  const grants = {};
  const userAuth = {
    async setUserSkills(userId, patch) {
      grants[userId] = { ...(grants[userId] ?? {}), ...patch };
      return {
        ok: true,
        grantedSkills: Object.entries(grants[userId])
          .filter(([, enabled]) => enabled)
          .map(([name]) => name),
      };
    },
    async getUserById(userId) {
      return { id: userId, balance_cents: 1000 };
    },
  };
  const service = createPageTemplateCatalogService(pool, { userAuth, h5Root: process.cwd() });
  const conn = await pool.getConnection();
  const result = await service.fulfillWechatPurchaseLocked({
    conn,
    order: {
      id: 'order-1',
      userId: 'user-1',
      amountCents: 990,
      orderPurposeRef: 'page-template-travel',
    },
  });
  assert.equal(result.ok, true);
  assert.deepEqual(result.grantedSkills, ['page-template-travel']);
});

test('seedTemplateCatalogFromSkills inserts platform template skills', async () => {
  const pool = createMockPool();
  await seedTemplateCatalogFromSkills(pool, process.cwd());
  assert.ok(pool.state.catalog.has('page-template-travel'));
  assert.ok(pool.state.catalog.has('page-template-campaign'));
  assert.ok(pool.state.catalog.has('page-template-restaurant'));
  assert.ok(pool.state.catalog.has('page-template-product-grid'));
  assert.equal(pool.state.catalog.size, 20);
  assert.equal(pool.state.catalog.get('page-template-travel').price_cents, 990);
});