package responsex_test

import (
	"context"
	"net/http/httptest"
	"testing"

	"code.yun.ink/pkg/responsex"
	"github.com/yuninks/langx"
)





// ---------- 健壮性修复 ----------

func TestGetOffsetNegativeSize(t *testing.T) {
	offset, limit := responsex.GetOffset(1, -5)
	if limit != 10 || offset != 0 {
		t.Errorf("GetOffset(1,-5) = (%d,%d), want (0,10)", offset, limit)
	}
}

func TestGetPageNegativeSize(t *testing.T) {
	p := responsex.GetPage(1, -5, 100)
	if p.TotalPage != 0 {
		t.Errorf("TotalPage = %d, want 0（负数 size 不应算出负页数）", p.TotalPage)
	}
}

func TestResponseMarshalFailed(t *testing.T) {
	w := httptest.NewRecorder()
	// channel 无法序列化
	responsex.Success(context.Background(), w, make(chan int), responsex.SetIgnoreLog())

	if w.Code != 500 {
		t.Errorf("http status = %d, want 500", w.Code)
	}
	body := decodeBody(t, w)
	if body["code"] != float64(400) {
		t.Errorf("code = %v, want 400", body["code"])
	}
	if body["message"] == "" {
		t.Error("message 不应为空（不能回空 body）")
	}
}

func TestNilLoggerDoesNotPanic(t *testing.T) {
	w := httptest.NewRecorder()
	// 序列化失败路径会调用 logger，此处不得 panic
	responsex.Success(context.Background(), w, make(chan int), responsex.SetLogger(nil))

	if w.Code != 500 {
		t.Errorf("http status = %d, want 500", w.Code)
	}
}

func TestSetDefaultSuccessMessage(t *testing.T) {
	responsex.InitOptions(responsex.SetDefaultSuccessMessage("操作成功"))
	defer responsex.InitOptions(responsex.SetDefaultSuccessMessage("请求成功"))

	w := httptest.NewRecorder()
	responsex.Success(context.Background(), w, "x", responsex.SetIgnoreLog())

	if body := decodeBody(t, w); body["message"] != "操作成功" {
		t.Errorf("message = %v, want 操作成功", body["message"])
	}
}

// 多语言成功文案：注册专用 key 后，按 ctx 语言返回
func TestSuccessMessageFromLangx(t *testing.T) {
	langx.AppendTrans("zh", map[string]string{"responsex_success": "请求成功"})
	langx.AppendTrans("en", map[string]string{"responsex_success": "success"})

	ctxEn := langx.SetCtxLang(context.Background(), "en")
	ctxZh := langx.SetCtxLang(context.Background(), "zh")

	if got := responsex.SuccessMessageCtx(ctxEn); got != "success" {
		t.Errorf("SuccessMessageCtx(en) = %q, want success", got)
	}
	if got := responsex.SuccessMessageCtx(ctxZh); got != "请求成功" {
		t.Errorf("SuccessMessageCtx(zh) = %q, want 请求成功", got)
	}

	// Success 走同一套解析逻辑
	w := httptest.NewRecorder()
	responsex.Success(ctxEn, w, "x", responsex.SetIgnoreLog())
	if body := decodeBody(t, w); body["message"] != "success" {
		t.Errorf("Success(en) message = %v, want success", body["message"])
	}
}