package web

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

	"github.com/gin-gonic/gin"
)

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("PDD", func(t *testing.T) {
		context, recorder := listPostContext(t, "/pdd/delete", url.Values{
			"q": {"737"}, "status": {"pending"}, "page": {"3"},
		})
		(&Handler{}).pddRedirect(context, "完成")
		assertRedirectQuery(t, recorder, "/pdd", map[string]string{
			"q": "737", "status": "pending", "page": "3", "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"}, "page": {"2"},
		})
		(&Handler{}).taskRedirect(context, "完成")
		assertRedirectQuery(t, recorder, "/tasks", map[string]string{
			"q": "TASK", "type": "collect", "status": "pending", "page": "2", "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"},
		})
		redirectClients(context, "完成", "")
		assertRedirectQuery(t, recorder, "/clients", map[string]string{
			"name": "仓库", "page": "4", "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"},
		})
		redirectUsers(context, "完成", "")
		assertRedirectQuery(t, recorder, "/users", map[string]string{
			"q": "buyer", "status": "active", "page": "5", "msg": "完成",
		})
	})
}