//Calendar implementation for the HTWK Leipzig timetable. Evaluation and display of the individual dates in iCal format.
//Copyright (C) 2024 HTWKalender support@htwkalender.de

//This program is free software: you can redistribute it and/or modify
//it under the terms of the GNU Affero General Public License as published by
//the Free Software Foundation, either version 3 of the License, or
//(at your option) any later version.

//This program is distributed in the hope that it will be useful,
//but WITHOUT ANY WARRANTY; without even the implied warranty of
//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//GNU Affero General Public License for more details.

//You should have received a copy of the GNU Affero General Public License
//along with this program.  If not, see <https://www.gnu.org/licenses/>.

package feed

import (
	"github.com/pocketbase/pocketbase/daos"
	"github.com/pocketbase/pocketbase/tests"
	"htwkalender/model"
	mockTime "htwkalender/service/functions/time"
	"testing"
	"time"
)

const testDataDir = "./mockData"

func TestClearFeeds(t *testing.T) {

	setupTestApp := func(t *testing.T) *daos.Dao {
		testApp, err := tests.NewTestApp(testDataDir)
		if err != nil {
			t.Fatal(err)
		}
		dao := daos.New(testApp.Dao().DB())
		return dao
	}

	type args struct {
		db        *daos.Dao
		months    int
		mockClock mockTime.MockClock
	}
	testCases := []struct {
		name string
		args args
		want int
	}{
		{
			name: "TestClearFeeds",
			args: args{
				db:     setupTestApp(t),
				months: 6,
				mockClock: mockTime.MockClock{
					NowTime: time.Date(2023, 12, 1, 0, 0, 0, 0, time.UTC),
				},
			},
			want: 1,
		},
		{
			name: "TestClearAllFeeds",
			args: args{
				db:     setupTestApp(t),
				months: 1,
				mockClock: mockTime.MockClock{
					NowTime: time.Date(2024, 1, 1, 0, 0, 0, 0, time.UTC),
				},
			},
			want: 0,
		},
		{
			name: "TestClearFeedsClearBeforeRetrievedTime",
			args: args{
				db:     setupTestApp(t),
				months: 1,
				mockClock: mockTime.MockClock{
					NowTime: time.Date(2010, 1, 1, 0, 0, 0, 0, time.UTC),
				},
			},
			want: 3,
		},
	}
	for _, tt := range testCases {
		t.Run(tt.name, func(t *testing.T) {
			ClearFeeds(tt.args.db, tt.args.months, tt.args.mockClock)
			// count all feeds in db
			var feeds []*model.Feed
			err := tt.args.db.DB().Select("id").From("feeds").All(&feeds)
			if err != nil {
				t.Fatal(err)
			}
			if got := len(feeds); got != tt.want {
				t.Errorf("ClearFeeds() = %v, want %v", got, tt.want)
			}
		})
	}
}