import assert from 'node:assert/strict';
import { readFileSync } from 'node:fs';
import { test, beforeEach } from 'node:test';
import vm from 'node:vm';
import ts from 'typescript';
import { apiConfig, resolveApiConfig } from '../miniprogram/config/api.ts';
import {
    apiRequest,
    ApiRequestError,
} from '../miniprogram/services/api-request.ts';
import * as contentApi from '../miniprogram/services/content-api.ts';
import * as model from '../miniprogram/pages/category/category.model.ts';

const categories = [
    {
        id: 'math',
        name: '数感启蒙',
        icon: '📐',
        parentId: null,
        status: 'active',
    },
];
const worksheet = (id, extra = {}) => ({
    id,
    title: id,
    subtitle: '',
    category: 'math',
    path: `/mathPages/mathDraw/mathDraw?id=${id}`,
    ageMin: 3,
    ageMax: 8,
    difficulty: 1,
    previewImg: null,
    likes: '2',
    downloads: '10',
    createdAt: '2025-01-01T00:00:00Z',
    updatedAt: '2025-01-01T00:00:00Z',
    contentUpdatedAt: null,
    ...extra,
});
const pageOf = (items, page = 1, total = items.length) => ({
    items,
    page,
    pageSize: 100,
    total,
    hasNext: page * 100 < total,
});
let requests;
let navigations;
let handler;

beforeEach(() => {
    requests = [];
    navigations = [];
    apiConfig.developmentEnvironment = 'local';
    apiConfig.productionBaseUrl = 'http://127.0.0.1:8800/api/v1';
    handler = () => ({ data: [] });
    globalThis.wx = {
        getAccountInfoSync: () => ({ miniProgram: { envVersion: 'develop' } }),
        request(options) {
            requests.push(options);
            Promise.resolve()
                .then(() => handler(options))
                .then((result) => {
                    options.success({
                        statusCode: result.statusCode ?? 200,
                        data: result.raw ?? {
                            code: 0,
                            message: 'ok',
                            data: result.data,
                        },
                    });
                })
                .catch(() => options.fail({ errMsg: 'request:fail' }));
        },
        showToast() {},
        navigateTo(options) {
            navigations.push(options.url);
        },
        switchTab(options) {
            navigations.push(options.url);
        },
    };
});

/** 仅隔离埋点与绘图分享依赖；分类页、请求层及数据模型均使用真实源码。 */
function createCategoryPage(api = contentApi) {
    let options;
    const source = readFileSync(
        new URL('../miniprogram/pages/category/category.ts', import.meta.url),
        'utf8',
    );
    const code = ts.transpileModule(source, {
        compilerOptions: {
            module: ts.ModuleKind.CommonJS,
            target: ts.ScriptTarget.ES2020,
        },
    }).outputText;
    const modules = {
        '../../base/pageMixin': { appSharePageMethods: {} },
        '../../utils/index': { takePendingCategoryTabId: () => null },
        '../../utils/tracker': {
            default: {
                reportPageView() {},
                report() {},
                reportWorksheetClick() {},
            },
        },
        '../../services/api-request': { ApiRequestError },
        '../../services/content-api': api,
        './category.model': model,
    };
    vm.runInNewContext(code, {
        exports: {},
        wx: globalThis.wx,
        Error,
        require(path) {
            assert.ok(path in modules, path);
            return modules[path];
        },
        Page(value) {
            options = value;
        },
    });
    const instance = {
        ...options,
        data: structuredClone(options.data),
        setData(value) {
            Object.assign(this.data, value);
        },
    };
    return instance;
}

function useRows(rows, selectedCategories = categories) {
    handler = ({ url, data }) => {
        const path = new URL(url).pathname;
        if (path.endsWith('/categories')) return { data: selectedCategories };
        if (path.endsWith('/worksheets')) {
            const page = data.page;
            return {
                data: pageOf(
                    rows.slice((page - 1) * 100, page * 100),
                    page,
                    rows.length,
                ),
            };
        }
        const row = rows.find((item) =>
            path.endsWith(`/${encodeURIComponent(item.id)}`),
        );
        return row ? { data: row } : { statusCode: 404 };
    };
}

test('环境配置：体验/正式/未知包固定 production，暂允许指定的本机占位地址', () => {
    assert.equal(resolveApiConfig('develop').environment, 'local');
    for (const version of ['release', 'trial', 'unknown']) {
        assert.equal(resolveApiConfig(version).environment, 'production');
        assert.equal(
            resolveApiConfig(version).baseUrl,
            'http://127.0.0.1:8800/api/v1',
        );
    }
    apiConfig.productionBaseUrl = '';
    assert.throws(() => resolveApiConfig('release'), /production/);
    apiConfig.productionBaseUrl = 'https://api.example.test/api/v1/';
    assert.equal(
        resolveApiConfig('release').baseUrl,
        'https://api.example.test/api/v1',
    );
    apiConfig.productionBaseUrl = 'http://api.example.test/api/v1';
    assert.throws(() => resolveApiConfig('release'), /配置/);
});

test('请求层：HTTP、业务错误、畸形响应、网络错误均拒绝，不当作空成功', async () => {
    useRows([]);
    assert.deepEqual(
        await apiRequest('/categories', { auth: 'none' }),
        categories,
    );
    assert.equal(requests[0].url, 'http://127.0.0.1:8800/api/v1/categories');
    for (const result of [
        { statusCode: 404 },
        { statusCode: 503 },
        { raw: { code: 1, data: [] } },
        { raw: { code: 0 } },
        { raw: '<html>error</html>' },
    ]) {
        handler = () => result;
        await assert.rejects(
            apiRequest('/categories', { auth: 'none' }),
            ApiRequestError,
        );
    }
    handler = () => {
        throw new Error('offline');
    };
    await assert.rejects(
        apiRequest('/categories', { auth: 'none' }),
        /连接失败/,
    );
});

test('完整分页：121 条无遗漏，计数字符串保留精度，空数据正常结束', async () => {
    const rows = Array.from({ length: 121 }, (_, index) =>
        worksheet(`item-${index}`, { downloads: '9223372036854775906' }),
    );
    useRows(rows);
    const actual = await contentApi.listAllWorksheets();
    assert.deepEqual(actual, rows);
    assert.equal(requests.length, 2);
    assert.equal(actual[120].downloads, '9223372036854775906');
    useRows([]);
    assert.deepEqual(await contentApi.listAllWorksheets(), []);
});

test('分页变化、重复记录、缺页及非法计数拒绝返回部分内容', async () => {
    for (const result of [
        pageOf([worksheet('one'), worksheet('one')]),
        pageOf([worksheet('one')], 1, 2),
        pageOf([worksheet('one', { likes: 9007199254740992 })]),
        { ...pageOf([]), hasNext: true },
    ]) {
        handler = () => ({ data: result });
        await assert.rejects(contentApi.listAllWorksheets());
    }
    const rows = Array.from({ length: 100 }, (_, index) =>
        worksheet(`item-${index}`),
    );
    handler = ({ data }) => ({
        data:
            data.page === 1
                ? pageOf(rows, 1, 101)
                : pageOf([worksheet('last')], 2, 102),
    });
    await assert.rejects(contentApi.listAllWorksheets());
});

test('展示模型：采用服务端分类、空图有图标、不恢复失联分类，榜单精确比较 64 位计数', () => {
    const rows = [
        worksheet('one', { likes: '9223372036854775806', downloads: '5' }),
        worksheet('two', {
            likes: '9223372036854775807',
            downloads: '9223372036854775906',
        }),
        worksheet('new', { likes: '1', updatedAt: '2026-10-01T00:00:00Z' }),
        worksheet('hidden-category', { category: 'papers' }),
    ];
    const dataset = model.buildCategoryDataset(
        [...categories, { ...categories[0], id: 'craft', name: '创意手工' }],
        rows,
    );
    assert.deepEqual(
        dataset.sidebarTabs.map((row) => row.id),
        ['all', 'hot', 'top-downloads', 'math', 'craft'],
    );
    const all = model.getCategoryItems(dataset, 'all');
    assert.equal(all.length, 3);
    assert.equal(all[0].id, 'new');
    assert.equal(all[0].icon, '📐');
    assert.equal(all[0].previewImg, '');
    assert.equal(model.getCategoryItems(dataset, 'hot')[0].id, 'two');
    assert.equal(model.getCategoryItems(dataset, 'top-downloads')[0].id, 'two');
    assert.equal(model.getCategoryItems(dataset, 'math', 'new').length, 1);
    assert.equal(model.compareCountDescending('0005', '5'), 0);
});

test('页面：接口成功展示真实数据，失败清空旧目录/内容，重试可恢复，失效分类回到全部', async () => {
    const page = createCategoryPage();
    page.onLoad({ id: 'papers' });
    useRows([worksheet('real')]);
    await page.loadWorksheets();
    assert.equal(page.data.activeCategoryId, 'all');
    assert.equal(page.data.displayItems[0].id, 'real');
    assert.ok(!page.data.sidebarTabs.some((tab) => tab.id === 'papers'));
    handler = () => {
        throw new Error('offline');
    };
    await page.loadWorksheets();
    assert.equal(page.data.displayItems.length, 0);
    assert.equal(page.data.sidebarTabs.length, 3);
    assert.ok(page.data.errorMessage);
    useRows([worksheet('retry')]);
    await page.loadWorksheets();
    assert.equal(page.data.errorMessage, '');
    assert.equal(page.data.displayItems[0].id, 'retry');
});

test('页面：旧请求/离开页面后的响应不会覆盖新请求', async () => {
    let finishOld;
    let calls = 0;
    const page = createCategoryPage({
        ...contentApi,
        listCategories: () =>
            ++calls === 1
                ? new Promise((resolve) => {
                      finishOld = resolve;
                  })
                : Promise.resolve(categories),
        listAllWorksheets: async () => [worksheet(calls === 1 ? 'old' : 'new')],
    });
    const first = page.loadWorksheets();
    await page.loadWorksheets();
    assert.equal(page.data.displayItems[0].id, 'new');
    finishOld(categories);
    await first;
    assert.equal(page.data.displayItems[0].id, 'new');
    let finish;
    const hiddenPage = createCategoryPage({
        ...contentApi,
        listCategories: () =>
            new Promise((resolve) => {
                finish = resolve;
            }),
        listAllWorksheets: async () => [],
    });
    const pending = hiddenPage.loadWorksheets();
    hiddenPage.onHide();
    finish(categories);
    await pending;
    assert.equal(hiddenPage.data.loading, true);
});

test('页面：点击前检查详情；正常跳转，404 下架刷新并阻止进入本地页面', async () => {
    const page = createCategoryPage();
    const row = worksheet('live');
    useRows([row]);
    await page.loadWorksheets();
    await page.onTapItem({ currentTarget: { dataset: { id: 'live' } } });
    assert.deepEqual(navigations, [row.path]);
    navigations.length = 0;
    useRows([]);
    await page.onTapItem({ currentTarget: { dataset: { id: 'live' } } });
    await new Promise((resolve) => setImmediate(resolve));
    assert.equal(navigations.length, 0);
    assert.equal(page.data.displayItems.length, 0);
});

test(
    '本地联调：真实 8800 分类、全部题型、页面展示与点击详情一致',
    { skip: process.env.TEST_LOCAL_API !== '1' },
    async () => {
        const realRequest = globalThis.wx.request;
        globalThis.wx.request = (options) => {
            const url = new URL(options.url);
            for (const [key, value] of Object.entries(options.data || {}))
                url.searchParams.set(key, String(value));
            fetch(url, { signal: AbortSignal.timeout(5000) })
                .then(async (response) =>
                    options.success({
                        statusCode: response.status,
                        data: await response.json(),
                    }),
                )
                .catch(() => options.fail({}));
        };
        try {
            const page = createCategoryPage();
            await page.loadWorksheets();
            assert.equal(page.data.errorMessage, '');
            const rows = await contentApi.listAllWorksheets();
            assert.ok(rows.length > 0);
            assert.equal(page.data.displayItems.length, rows.length);
            assert.ok(page.data.displayItems.every((row) => row.icon));
            await page.onTapItem({
                currentTarget: {
                    dataset: { id: page.data.displayItems[0].id },
                },
            });
            assert.equal(navigations.length, 1);
            console.log(
                `本地联调：${page.data.sidebarTabs.length - 3} 个分类、${rows.length} 个题型。`,
            );
        } finally {
            globalThis.wx.request = realRequest;
        }
    },
);