package web

import (
	"net/http"
	"net/http/httptest"
	"net/url"
	"strings"
	"testing"

	"github.com/gin-gonic/gin"

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

func listPostContext(t *testing.T, path string, values url.Values) (*gin.Context, *httptest.ResponseRecorder) {
	t.Helper()
	gin.SetMode(gin.TestMode)
	recorder := httptest.NewRecorder()
	context, _ := gin.CreateTestContext(recorder)
	request := httptest.NewRequest(http.MethodPost, path, strings.NewReader(values.Encode()))
	request.Header.Set("Content-Type", "application/x-www-form-urlencoded")
	context.Request = request
	return context, recorder
}

func assertRedirectQuery(t *testing.T, recorder *httptest.ResponseRecorder, wantPath string, want map[string]string) {
	t.Helper()
	location, err := url.Parse(recorder.Header().Get("Location"))
	if err != nil {
		t.Fatal(err)
	}
	if location.Path != wantPath {
		t.Fatalf("跳转路径=%s，期望 %s", location.Path, wantPath)
	}
	for key, value := range want {
		if got := location.Query().Get(key); got != value {
			t.Fatalf("%s=%q，期望 %q；Location=%s", key, got, value, location.String())
		}
	}
}

func Test列表写操作跳转保留筛选和页码(t *testing.T) {
	t.Run("蝦皮", func(t *testing.T) {
		context, recorder := listPostContext(t, "/shopee/save", url.Values{
			"q": {"店铺 A"}, "search_field": {"shop_name"}, "status": {"no_link"}, "unlinked": {"1"}, "page": {"2"}, "page_size": {"50"},
		})
		(&Handler{}).shopeeRedirect(context, "完成")
		assertRedirectQuery(t, recorder, "/shopee", map[string]string{
			"q": "店铺 A", "search_field": "shop_name", "status": "no_link", "unlinked": "1", "page": "2", "page_size": "50", "msg": "完成",
		})
	})
	t.Run("顺运宝", func(t *testing.T) {
		context, recorder := listPostContext(t, "/syb/associate-pdd", url.Values{
			"order_no": {"SYB-1"}, "shop": {"测试店铺"}, "stage": {"pdd_missing"}, "page": {"3"}, "page_size": {"100"},
		})
		(&Handler{}).sybRedirect(context, "完成")
		assertRedirectQuery(t, recorder, "/syb", map[string]string{
			"order_no": "SYB-1", "shop": "测试店铺", "stage": "pdd_missing", "page": "3", "page_size": "100", "msg": "完成",
		})
	})
	t.Run("PDD", func(t *testing.T) {
		context, recorder := listPostContext(t, "/pdd/delete", url.Values{
			"q": {"737"}, "status": {"pending"}, "page": {"3"}, "page_size": {"50"},
		})
		(&Handler{}).pddRedirect(context, "完成")
		assertRedirectQuery(t, recorder, "/pdd", map[string]string{
			"q": "737", "status": "pending", "page": "3", "page_size": "50", "msg": "完成",
		})
	})
	t.Run("任务", func(t *testing.T) {
		context, recorder := listPostContext(t, "/tasks/delete", url.Values{
			"q": {"TASK"}, "type": {"collect"}, "status": {"pending"}, "creator": {"buyer-a"}, "page": {"2"}, "page_size": {"100"},
		})
		context.Set(currentUserKey, &model.User{Role: model.RoleAdmin})
		(&Handler{}).taskRedirect(context, "完成")
		assertRedirectQuery(t, recorder, "/tasks", map[string]string{
			"q": "TASK", "type": "collect", "status": "pending", "creator": "buyer-a", "page": "2", "page_size": "100", "msg": "完成",
		})
	})
	t.Run("客户端", func(t *testing.T) {
		context, recorder := listPostContext(t, "/clients/assign", url.Values{
			"name": {"仓库"}, "page": {"4"}, "page_size": {"50"},
		})
		redirectClients(context, "完成", "")
		assertRedirectQuery(t, recorder, "/clients", map[string]string{
			"name": "仓库", "page": "4", "page_size": "50", "msg": "完成",
		})
	})
	t.Run("用户", func(t *testing.T) {
		context, recorder := listPostContext(t, "/users/status", url.Values{
			"q": {"buyer"}, "list_status": {"active"}, "page": {"5"}, "page_size": {"100"},
		})
		redirectUsers(context, "完成", "")
		assertRedirectQuery(t, recorder, "/users", map[string]string{
			"q": "buyer", "status": "active", "page": "5", "page_size": "100", "msg": "完成",
		})
	})
}

func Test列表写操作跳转归一化非法每页条数(t *testing.T) {
	context, recorder := listPostContext(t, "/pdd/delete", url.Values{"page_size": {"9999"}})
	(&Handler{}).pddRedirect(context, "")
	assertRedirectQuery(t, recorder, "/pdd", map[string]string{"page_size": "100"})
}

func Test蝦皮分页详情和状态条保留分类搜索(t *testing.T) {
	values := url.Values{
		"q": {"店铺 A"}, "search_field": {"shop_name"}, "status": {"has_link"}, "unlinked": {"1"},
	}
	detail, err := url.Parse("/shopee/detail?" + detailValuesForShopee(values, 3))
	if err != nil {
		t.Fatal(err)
	}
	for key, want := range map[string]string{
		"q": "店铺 A", "search_field": "shop_name", "status": "has_link", "unlinked": "1", "page": "3",
	} {
		if got := detail.Query().Get(key); got != want {
			t.Errorf("详情参数 %s=%q，期望 %q", key, got, want)
		}
	}

	result := &service.ShopeeListResult{Total: 7, Page: 1, TotalPages: 1, IsFiltered: true}
	if got := shopeeStatusLine("", result); got != "筛选结果：7 个商品 · 第 1/1 页" {
		t.Errorf("资料筛选状态条=%q", got)
	}
}