package api

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

	"git.golem15.com/golem15/summercms/modules/backpack"
)

// TestManageHandlersWithoutDatabase: every manage handler answers 503
// when the application has no database and the input is valid.
func TestManageHandlersWithoutDatabase(t *testing.T) {
	h := New(backpack.New(nil))
	for name, tc := range map[string]struct {
		fn     http.HandlerFunc
		method string
		target string
		body   string
	}{
		"list":      {h.ManageListQuizzes, "GET", "/", ""},
		"show":      {h.ManageShowQuiz, "GET", "/", ""},
		"create":    {h.ManageCreateQuiz, "POST", "/", `{"title":"Pojęcia"}`},
		"update":    {h.ManageUpdateQuiz, "PATCH", "/", `{"max_attempts":0}`},
		"delete":    {h.ManageDeleteQuiz, "DELETE", "/?confirm=x", ""},
		"publish":   {h.ManagePublish, "POST", "/", ""},
		"unpublish": {h.ManageUnpublish, "POST", "/", ""},
		"stats":     {h.ManageQuizStats, "GET", "/", ""},
	} {
		code, _ := call(t, tc.fn, tc.method, tc.target, tc.body, 7, map[string]string{"slug": "x"})
		if code != http.StatusServiceUnavailable {
			t.Errorf("%s without a database = %d, want 503", name, code)
		}
	}
}

// TestManageWritesRefuseBadInputBeforeDatabase: invalid input is a 422
// even without a database, so it is checked before any read.
func TestManageWritesRefuseBadInputBeforeDatabase(t *testing.T) {
	h := New(backpack.New(nil))
	for name, tc := range map[string]struct {
		fn     http.HandlerFunc
		method string
		target string
		body   string
		want   string
	}{
		"create invalid JSON":    {h.ManageCreateQuiz, "POST", "/", `{"title":`, "invalid JSON"},
		"create empty body":      {h.ManageCreateQuiz, "POST", "/", "", "invalid JSON"},
		"create is_published":    {h.ManageCreateQuiz, "POST", "/", `{"title":"A","is_published":true}`, "is_published"},
		"create missing title":   {h.ManageCreateQuiz, "POST", "/", `{"slug":"a"}`, "title is required"},
		"create mode exam":       {h.ManageCreateQuiz, "POST", "/", `{"title":"A","mode":"exam"}`, "mode must be one of"},
		"update slug":            {h.ManageUpdateQuiz, "PATCH", "/", `{"slug":"b"}`, "slug"},
		"update is_published":    {h.ManageUpdateQuiz, "PATCH", "/", `{"is_published":true}`, "is_published"},
		"update passing 101":     {h.ManageUpdateQuiz, "PATCH", "/", `{"passing_score":101}`, "passing_score"},
		"delete without confirm": {h.ManageDeleteQuiz, "DELETE", "/", "", "confirm must repeat the quiz slug"},
		"delete wrong confirm":   {h.ManageDeleteQuiz, "DELETE", "/?confirm=y", "", "confirm must repeat the quiz slug"},
	} {
		code, out := call(t, tc.fn, tc.method, tc.target, tc.body, 7, map[string]string{"slug": "x"})
		msg, _ := out["message"].(string)
		if code != http.StatusUnprocessableEntity || !strings.Contains(msg, tc.want) {
			t.Errorf("%s = %d %v, want 422 with %q", name, code, out, tc.want)
		}
	}
}