package device

import (
    "testing"
    "time"
    "fmt"
)

func TestDaysBetween(t *testing.T) {
    var tests = []struct{
        day1 DayOfWeek
        day2 DayOfWeek
        want int
    }{
        { Monday, Thuesday, 1 },
        { Thuesday, Monday, 6 },
        { Sunday, Monday, 1 },
        { Sunday, Thuesday, 2 },
        { Friday, Friday, 0 },
    }
    for _, tt := range tests {
        testname := fmt.Sprintf("Days between %d and %d", tt.day1, tt.day2 )
        t.Run(testname, func(t *testing.T) {
            between := tt.day1.DaysBetween(tt.day2)
            if between != tt.want {
                t.Errorf("got %d, want %d", between, tt.want)
            }
        })
    }
}


func TestNextTime(t *testing.T) {

    defaultSetpoints := []Setpoint{
        {Start: 7*60, Preset_id: 1},
        {Start: 8*60, Preset_id: 0},
        {Start: 16*60, Preset_id: 1},
        {Start: 22*60, Preset_id: 0},
    }

    program := WeekProgram{
        Monday:    defaultSetpoints,
        Thuesday:  defaultSetpoints,
        Wednesday: defaultSetpoints,
        Thursday : defaultSetpoints,
        Friday:    defaultSetpoints,
        Saturday:  defaultSetpoints,
        Sunday:    defaultSetpoints,
    }

    var tests = []struct{
        time time.Time
        want time.Time
    }{
        {
        time.Date(2022, time.October, 23, 9, 0, 0, 0, time.Local),
        time.Date(2022, time.October, 23, 16, 0, 0, 0, time.Local),
        },
        {
        time.Date(2022, time.October, 24, 5, 0, 0, 0, time.Local),
        time.Date(2022, time.October, 24, 7, 0, 0, 0, time.Local),
        },
        {
        time.Date(2022, time.October, 23, 23, 0, 0, 0, time.Local),
        time.Date(2022, time.October, 24, 7, 0, 0, 0, time.Local),
        },
    }
    for _, tt := range tests {
        testname := fmt.Sprintf("%s", tt.time.String() )
        t.Run(testname, func(t *testing.T) {
            next, err := program.NextTime(tt.time)
            if err != nil {
                t.Fatalf("unexpected error")
            }
            if !next.Equal(tt.want) {
                t.Errorf("got %s, want %s", next.String(), tt.want.String())
            }
        })
    }

}