package main

import (
	"testing"
	"time"

	"github.com/stretchr/testify/assert"
)

func TestMatchTime(t *testing.T) {
	tts := []struct {
		name         string
		pattern      string
		currentValue int
		exptMatch    bool
		exptError    string
	}{
		{
			name:         "just a number matching",
			pattern:      "5",
			currentValue: 5,
			exptMatch:    true,
			exptError:    "",
		},
		{
			name:         "just a number mismtaching",
			pattern:      "5",
			currentValue: 6,
			exptMatch:    false,
			exptError:    "",
		},
		{
			name:         "errors because of letters",
			pattern:      "abc",
			currentValue: 5,
			exptMatch:    false,
			exptError:    "cant parse time pattern",
		},
		{
			name:         "every minute",
			pattern:      "*",
			currentValue: 5,
			exptMatch:    true,
			exptError:    "",
		},
		{
			name:         "two numbers, matching",
			pattern:      "10, 27",
			currentValue: 27,
			exptMatch:    true,
			exptError:    "",
		},
		{
			name:         "two numbers, matching",
			pattern:      "10, 27",
			currentValue: 56,
			exptMatch:    false,
			exptError:    "",
		},
		{
			name:         "single range, match",
			pattern:      "10-20",
			currentValue: 14,
			exptMatch:    true,
			exptError:    "",
		},
		{
			name:         "range in wrong direction",
			pattern:      "30-20",
			currentValue: 14,
			exptMatch:    false,
			exptError:    "cant parse time pattern: smaler number should be first",
		},
		{
			name:         "range with letter",
			pattern:      "b-20",
			currentValue: 14,
			exptMatch:    false,
			exptError:    "cant parse time pattern: strconv.Atoi: parsing \"b\": invalid syntax",
		},
		{
			name:         "2 ranges, matching one",
			pattern:      "10-20,40-50",
			currentValue: 13,
			exptMatch:    true,
			exptError:    "",
		},
		{
			name:         "invalide pattern 3 -",
			pattern:      "10-20-30",
			currentValue: 4,
			exptMatch:    false,
			exptError:    "cant parse time pattern: range include more than 2 parameter",
		},
		{
			name:         "every secound matching",
			pattern:      "*/2",
			currentValue: 4,
			exptMatch:    true,
			exptError:    "",
		},
		{
			name:         "both cases",
			pattern:      "5-59/20",
			currentValue: 25,
			exptMatch:    true,
			exptError:    "",
		},
		{
			name:         "both cases",
			pattern:      "5-59/20",
			currentValue: 20,
			exptMatch:    false,
			exptError:    "",
		},
		{
			name:         "both cases",
			pattern:      "5-59/20",
			currentValue: 0,
			exptMatch:    false,
			exptError:    "",
		},
	}

	for _, tt := range tts {
		t.Run(tt.name, func(t *testing.T) {
			res, err := matchTime(tt.pattern, tt.currentValue)
			assert.Equal(t, tt.exptMatch, res)
			if tt.exptError == "" {
				assert.Nil(t, err)
			} else {
				assert.Equal(t, tt.exptError, err.Error())
			}
		})
	}
}

func TestMatchJobTime(t *testing.T) {
	ti := time.Date(2025, time.October, 15, 14, 14, 15, 0, time.UTC)

	tts := []struct {
		name      string
		job       jobconfig
		expRes    bool
		expErrMsg string
	}{
		{
			name:      "failed-houre",
			job:       jobconfig{Hour: "15", Minute: "*", Weekday: "*"},
			expRes:    false,
			expErrMsg: "",
		},
		{
			name:      "failed-minute",
			job:       jobconfig{Hour: "*", Minute: "46", Weekday: "*"},
			expRes:    false,
			expErrMsg: "",
		},
		{
			name:      "pass",
			job:       jobconfig{Hour: "*", Minute: "*", Weekday: "*"},
			expRes:    true,
			expErrMsg: "",
		},
		{
			name:      "failed-with-error",
			job:       jobconfig{Hour: "abs", Minute: "*", Weekday: "*"},
			expRes:    false,
			expErrMsg: "cant parse time pattern",
		},
		{
			name:      "pass-with-timezone",
			job:       jobconfig{Hour: "17", Minute: "*", Weekday: "*", Timezone: "Africa/Nairobi"},
			expRes:    true,
			expErrMsg: "",
		},
	}

	for _, tt := range tts {
		t.Run(tt.name, func(t *testing.T) {
			res, err := tt.job.MatchCurrentTime(ti)
			if tt.expErrMsg == "" {
				assert.Nil(t, err)
			} else {
				assert.Equal(t, tt.expErrMsg, err.Error())
			}
			assert.Equal(t, tt.expRes, res)
		})
	}
}