package config

import (
	"testing"
)

func TestLoadSyncSchedule(t *testing.T) {
	cases := []struct {
		name, schedule, tz string
		wantTimes          int
		wantZone           string
		wantErr            bool
	}{
		{"defaults", "", "", 1, "Europe/Prague", false},
		{"two times", "06:00,18:00", "", 2, "Europe/Prague", false},
		{"off", "off", "", 0, "Europe/Prague", false},
		{"other zone", "04:00", "UTC", 1, "UTC", false},
		{"bad time", "25:00", "", 0, "", true},
		{"bad zone", "04:00", "Mars/Olympus", 0, "", true},
	}
	for _, tc := range cases {
		t.Run(tc.name, func(t *testing.T) {
			t.Setenv("SYNC_SCHEDULE", tc.schedule)
			t.Setenv("SYNC_TZ", tc.tz)
			times, loc, err := LoadSyncSchedule()
			if (err != nil) != tc.wantErr {
				t.Fatalf("err = %v, wantErr %v", err, tc.wantErr)
			}
			if tc.wantErr {
				return
			}
			if len(times) != tc.wantTimes {
				t.Errorf("times = %v, want %d entries", times, tc.wantTimes)
			}
			if loc.String() != tc.wantZone {
				t.Errorf("zone = %s, want %s", loc, tc.wantZone)
			}
		})
	}
	t.Setenv("SYNC_SCHEDULE", "")
	t.Setenv("SYNC_TZ", "")
	if times, _, _ := LoadSyncSchedule(); len(times) != 1 || times[0].String() != DefaultSyncSchedule {
		t.Errorf("default schedule = %v, want [%s]", times, DefaultSyncSchedule)
	}
}