package web

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

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

func sybPostContext(t *testing.T, 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, "/syb/sync", strings.NewReader(values.Encode()))
	request.Header.Set("Content-Type", "application/x-www-form-urlencoded")
	context.Request = request
	return context, recorder
}

func TestSybRedirectLogin_保留指定日期并打开登录弹窗(t *testing.T) {
	context, recorder := sybPostContext(t, url.Values{
		"order_no":  {"ORDER-1"},
		"date_from": {"2026-08-01"},
		"date_to":   {"2026-08-09"},
	})

	(&Handler{}).sybRedirectLogin(context, "")
	if context.Writer.Status() != http.StatusSeeOther {
		t.Fatalf("状态码 = %d，期望 %d", context.Writer.Status(), http.StatusSeeOther)
	}
	location, err := url.Parse(recorder.Header().Get("Location"))
	if err != nil {
		t.Fatalf("解析 Location 失败: %v", err)
	}
	query := location.Query()
	for name, want := range map[string]string{
		"login": "1", "order_no": "ORDER-1",
		"date_from": "2026-08-01", "date_to": "2026-08-09",
	} {
		if got := query.Get(name); got != want {
			t.Errorf("%s = %q，期望 %q；Location=%s", name, got, want, location.String())
		}
	}
}

func TestSybRedirectRange_保留输入并重新打开日期弹窗(t *testing.T) {
	context, recorder := sybPostContext(t, url.Values{
		"date_from": {"2026-08-09"},
		"date_to":   {"2026-08-01"},
	})

	(&Handler{}).sybRedirectRange(context, "开始日期不能晚于结束日期")
	location, err := url.Parse(recorder.Header().Get("Location"))
	if err != nil {
		t.Fatalf("解析 Location 失败: %v", err)
	}
	query := location.Query()
	if query.Get("range_sync") != "1" || query.Get("range_error") == "" {
		t.Fatalf("日期错误后应该重开弹窗并显示错误，Location=%s", location.String())
	}
	if query.Get("date_from") != "2026-08-09" || query.Get("date_to") != "2026-08-01" {
		t.Fatalf("日期错误后应该保留两端输入，Location=%s", location.String())
	}
}