package httpx

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

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

func runHandler(t *testing.T, handler gin.HandlerFunc) (*gin.Context, *httptest.ResponseRecorder) {
	t.Helper()
	gin.SetMode(gin.TestMode)
	w := httptest.NewRecorder()
	c, _ := gin.CreateTestContext(w)
	c.Request = httptest.NewRequest(http.MethodGet, "/", nil)
	handler(c)
	return c, w
}

func TestRespondErrorRegistersInternalError(t *testing.T) {
	c, w := runHandler(t, func(c *gin.Context) {
		RespondError(c, errors.New("boom"))
	})
	if len(c.Errors) != 1 {
		t.Fatalf("c.Errors = %d, want 1", len(c.Errors))
	}
	if w.Code != http.StatusInternalServerError {
		t.Fatalf("status = %d, want 500", w.Code)
	}
	if body := w.Body.String(); body != `{"error":{"code":"internal_error","message":"internal server error"}}` {
		t.Fatalf("body = %s", body)
	}
}

func TestRespondErrorRegistersAppError(t *testing.T) {
	c, w := runHandler(t, func(c *gin.Context) {
		RespondError(c, NotFound("photo_not_found", "photo not found"))
	})
	if len(c.Errors) != 1 {
		t.Fatalf("c.Errors = %d, want 1", len(c.Errors))
	}
	if w.Code != http.StatusNotFound {
		t.Fatalf("status = %d, want 404", w.Code)
	}
}

func TestAbortRegistersInternalError(t *testing.T) {
	c, w := runHandler(t, func(c *gin.Context) {
		Abort(c, errors.New("kaboom"))
	})
	if len(c.Errors) != 1 {
		t.Fatalf("c.Errors = %d, want 1", len(c.Errors))
	}
	if w.Code != http.StatusInternalServerError {
		t.Fatalf("status = %d, want 500", w.Code)
	}
}

// Ensure the package-level recovery of AppError still works for logging levels.
func TestInternalIsAppError500(t *testing.T) {
	err := Internal("oops")
	var appErr *AppError
	if !errors.As(err, &appErr) || appErr.Status != http.StatusInternalServerError {
		t.Fatalf("Internal() = %#v", err)
	}
}