package main

import (
	"net/http"
	"net/http/httptest"
	"os"
	"strings"
	"testing"
	"time"

	"cmautobuy/admin/model"
	"cmautobuy/admin/repository"
	"cmautobuy/admin/service"
)

func TestPaginationCSS_桌面右对齐且窄窗口不遮挡内容(t *testing.T) {
	content, err := os.ReadFile("static/css/app.css")
	if err != nil {
		t.Fatal(err)
	}
	css := string(content)
	statusbarRightAligned := `.statusbar {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  display: flex;
  align-items: center;
  justify-content: flex-end;`
	for _, want := range []string{
		statusbarRightAligned, "flex: 0 1 auto", "text-align: right",
		"margin-left: 0", "flex: 0 0 auto", "@media (max-width: 760px)",
		"position: static", ".statusbar > span:first-child { flex-basis: 100%; }",
	} {
		if !strings.Contains(css, want) {
			t.Fatalf("分页布局 CSS 缺少 %q", want)
		}
	}
}

// 六个主页面都走一次真实路由和模板渲染。
// 这样模板字段写错或新增列漏接时，测试阶段就会失败，不必等人工点页面。
func TestMainPagesReturnOK(t *testing.T) {
	db := newMySQLTestDB(t)

	router, err := newRouter(db)
	if err != nil {
		t.Fatalf("组装路由失败: %v", err)
	}

	// 全新库的业务页必须先去初始化，不能匿名打开。
	unauthenticated := httptest.NewRequest(http.MethodGet, "/shopee", nil)
	unauthenticatedResponse := httptest.NewRecorder()
	router.ServeHTTP(unauthenticatedResponse, unauthenticated)
	if unauthenticatedResponse.Code != http.StatusSeeOther ||
		unauthenticatedResponse.Header().Get("Location") != "/setup" {
		t.Fatalf("全新库访问业务页应跳转 /setup，实际 %d %s",
			unauthenticatedResponse.Code, unauthenticatedResponse.Header().Get("Location"))
	}

	if err := service.SetupInitialAdmin(db, "admin", "test-password", "test-password", time.Now()); err != nil {
		t.Fatalf("准备测试管理员失败: %v", err)
	}
	token, adminUser, _, err := service.Login(db, "admin", "test-password", time.Now())
	if err != nil {
		t.Fatalf("准备测试登录 Session 失败: %v", err)
	}
	addAuth := func(request *http.Request) {
		request.AddCookie(&http.Cookie{Name: "cmautobuy_session", Value: token})
	}

	for _, path := range []string{"/shopee", "/pdd", "/syb", "/tasks", "/clients", "/users"} {
		t.Run(path, func(t *testing.T) {
			request := httptest.NewRequest(http.MethodGet, path, nil)
			addAuth(request)
			response := httptest.NewRecorder()
			router.ServeHTTP(response, request)
			if response.Code != http.StatusOK {
				t.Fatalf("GET %s = %d，期望 200，响应：%s",
					path, response.Code, response.Body.String())
			}
			body := response.Body.String()
			if !strings.Contains(body, `<nav class="pagination" aria-label="分页">`) ||
				!strings.Contains(body, "首页") || !strings.Contains(body, "末页") {
				t.Fatalf("GET %s 没有渲染公共分页组件：%s", path, body)
			}
		})
	}

	if err := service.CreatePurchaser(db, adminUser, "buyer", "buyer-password", "buyer-password", time.Now()); err != nil {
		t.Fatalf("准备测试采购员失败: %v", err)
	}
	buyerToken, _, _, err := service.Login(db, "buyer", "buyer-password", time.Now())
	if err != nil {
		t.Fatalf("准备采购员 Session 失败: %v", err)
	}
	for _, path := range []string{"/shopee", "/pdd", "/syb", "/tasks", "/clients"} {
		request := httptest.NewRequest(http.MethodGet, path, nil)
		request.AddCookie(&http.Cookie{Name: "cmautobuy_session", Value: buyerToken})
		response := httptest.NewRecorder()
		router.ServeHTTP(response, request)
		if response.Code != http.StatusOK {
			t.Fatalf("采购员 GET %s = %d，期望 200", path, response.Code)
		}
	}
	usersRequest := httptest.NewRequest(http.MethodGet, "/users", nil)
	usersRequest.AddCookie(&http.Cookie{Name: "cmautobuy_session", Value: buyerToken})
	usersResponse := httptest.NewRecorder()
	router.ServeHTTP(usersResponse, usersRequest)
	if usersResponse.Code != http.StatusForbidden {
		t.Fatalf("采购员 GET /users = %d，期望 403", usersResponse.Code)
	}

	sybRequest := httptest.NewRequest(http.MethodGet, "/syb", nil)
	addAuth(sybRequest)
	sybResponse := httptest.NewRecorder()
	router.ServeHTTP(sybResponse, sybRequest)
	for _, want := range []string{
		"同步记录", "刷新同步记录", `data-syb-history-slot`,
		`data-history-fetch-url=`,
		`name="date_from"`, `name="date_to"`,
		`name="stage"`, "处理阶段", "下一步", `data-detail-url=`,
		"按顺运宝货运单创建日期（UTC+8）同步",
	} {
		if !strings.Contains(sybResponse.Body.String(), want) {
			t.Errorf("顺运宝页面缺少 %q", want)
		}
	}
	if strings.Contains(sybResponse.Body.String(), "指定日期同步") {
		t.Error("顺运宝页面不应再显示旧的指定日期同步入口")
	}

	_, err = repository.UpsertSybOrder(db, model.SybOrder{
		SybID: "SYB-PDD-ID-INPUT", OrderNo: "ORDER-PDD-ID-INPUT", Title: "输入测试商品",
		ProductSpec: "黑色,M", ShopeeGoodsID: "SP-PDD-ID-INPUT", Quantity: 1, SybData: `{}`,
	})
	if err != nil {
		t.Fatalf("准备顺运宝详情测试数据失败: %v", err)
	}
	detailRequest := httptest.NewRequest(http.MethodGet, "/syb/detail?id=SYB-PDD-ID-INPUT", nil)
	addAuth(detailRequest)
	detailResponse := httptest.NewRecorder()
	router.ServeHTTP(detailResponse, detailRequest)
	detailBody := detailResponse.Body.String()
	if detailResponse.Code != http.StatusOK {
		t.Fatalf("GET /syb/detail = %d，响应：%s", detailResponse.Code, detailBody)
	}
	for _, want := range []string{
		"PDD 商品链接或商品 ID", `type="text" name="pdd_url"`,
		"6～24 位纯数字商品 ID",
	} {
		if !strings.Contains(detailBody, want) {
			t.Errorf("顺运宝详情输入区缺少 %q，响应：%s", want, detailBody)
		}
	}
	if strings.Contains(detailBody, `type="url" name="pdd_url"`) {
		t.Error("顺运宝详情不应继续使用会拦截纯数字的 URL 输入类型")
	}

	partialRequest := httptest.NewRequest(http.MethodGet,
		"/syb/sync-history?history_page=1&order_no=ORDER-1&date_from=2026-08-01&date_to=2026-08-09", nil)
	addAuth(partialRequest)
	partialResponse := httptest.NewRecorder()
	router.ServeHTTP(partialResponse, partialRequest)
	partialBody := partialResponse.Body.String()
	if partialResponse.Code != http.StatusOK ||
		!strings.Contains(partialBody, "刷新同步记录") ||
		!strings.Contains(partialBody, `data-history-fetch-url=`) {
		t.Fatalf("同步记录片段响应不完整：%d %s", partialResponse.Code, partialBody)
	}
	if partialResponse.Header().Get("Cache-Control") != "no-store" {
		t.Fatalf("同步记录刷新响应不得被浏览器缓存，实际 Cache-Control=%q",
			partialResponse.Header().Get("Cache-Control"))
	}
	if strings.Contains(partialBody, `data-syb-sync-form`) || strings.Contains(partialBody, `modal-backdrop`) {
		t.Fatalf("同步记录片段不应包含 SYB 主页面或弹窗外壳：%s", partialBody)
	}
	unauthorizedPartial := httptest.NewRequest(http.MethodGet, "/syb/sync-history", nil)
	unauthorizedPartialResponse := httptest.NewRecorder()
	router.ServeHTTP(unauthorizedPartialResponse, unauthorizedPartial)
	if unauthorizedPartialResponse.Code != http.StatusSeeOther ||
		!strings.HasPrefix(unauthorizedPartialResponse.Header().Get("Location"), "/login") {
		t.Fatalf("匿名读取同步记录片段应跳转登录，实际 %d %s",
			unauthorizedPartialResponse.Code, unauthorizedPartialResponse.Header().Get("Location"))
	}

	if !service.TryStartSybSync() {
		t.Fatal("准备同步中页面状态失败")
	}
	runningRequest := httptest.NewRequest(http.MethodGet, "/syb", nil)
	addAuth(runningRequest)
	runningResponse := httptest.NewRecorder()
	router.ServeHTTP(runningResponse, runningRequest)
	service.FinishSybSync(service.SyncReport{})
	if runningResponse.Code != http.StatusOK ||
		!strings.Contains(runningResponse.Body.String(), "同步中…") ||
		!strings.Contains(runningResponse.Body.String(), `disabled aria-busy="true"`) ||
		!strings.Contains(runningResponse.Body.String(), "同步正在进行，请耐心等待") {
		t.Fatalf("同步运行时页面应禁用按钮并显示等待提示，响应：%s", runningResponse.Body.String())
	}

	pdd, err := repository.EnsurePddProduct(
		db, "737116531267",
		"https://mobile.yangkeduo.com/goods.html?goods_id=737116531267")
	if err != nil {
		t.Fatalf("准备 PDD 商品失败: %v", err)
	}
	resultJSON := `{
	  "price_granularity":"color",
	  "dimensions":[{"key":"color","name":"颜色分类"},{"key":"size","name":"尺码"}],
	  "skus":[
	    {"options":{"color":"黑色","size":"M"},"price_cent":470,
	     "price_observed_at":{"color":"黑色","size":"M"},"available":true},
	    {"options":{"color":"黑色","size":"L"},"price_cent":470,
	     "price_observed_at":{"color":"黑色","size":"M"},"available":true}
	  ]
	}`
	if err := repository.SetCollectResult(
		db, pdd.GoodsID, "测试商品", "测试旗舰店", resultJSON); err != nil {
		t.Fatalf("准备采集结果失败: %v", err)
	}

	request := httptest.NewRequest(http.MethodGet, "/pdd/detail?id=1", nil)
	addAuth(request)
	response := httptest.NewRecorder()
	router.ServeHTTP(response, request)
	if response.Code != http.StatusOK {
		t.Fatalf("GET /pdd/detail = %d，响应：%s", response.Code, response.Body.String())
	}
	body := response.Body.String()
	for _, want := range []string{
		"测试旗舰店", "价格按颜色采样", "✓ 实测", "推断",
	} {
		if !strings.Contains(body, want) {
			t.Errorf("PDD 详情缺少 %q，响应：%s", want, body)
		}
	}
}

// 公共弹窗不能只看 click.target 关闭：从密码框拖选到遮罩松开时，
// 浏览器会把 click 目标合成为遮罩。这个静态守卫确保 #56 的手势起点判断不被删掉；
// 真实指针行为另用 Chrome 回归验证。
func TestModalBackdropRequiresPointerStart(t *testing.T) {
	js, err := staticFS.ReadFile("static/js/app.js")
	if err != nil {
		t.Fatalf("读取公共 JavaScript 失败: %v", err)
	}
	source := string(js)
	for _, required := range []string{
		`addEventListener("pointerdown"`,
		`pointerStartedOnBackdrop = e.target === modal`,
		`e.target === modal && pointerStartedOnBackdrop`,
		`addEventListener("pointercancel"`,
	} {
		if !strings.Contains(source, required) {
			t.Errorf("公共弹窗缺少拖选防误关闭守卫 %q", required)
		}
	}
}