import { DayOfWeek, type DeskRule, type DeskRuleCondition, type DetailedAttendanceHour } from '../types/desk.ts'

const dayOfWeekByIndex = [
    DayOfWeek.Sunday,
    DayOfWeek.Monday,
    DayOfWeek.Tuesday,
    DayOfWeek.Wednesday,
    DayOfWeek.Thursday,
    DayOfWeek.Friday,
    DayOfWeek.Saturday,
] as const

export function normalizeDeskRuleConditions(
    rule: Pick<DeskRule, 'property' | 'relation' | 'values' | 'conditions'>,
): Array<DeskRuleCondition> {
    if (rule.conditions) {
        return rule.conditions
    }

    if (rule.property && rule.relation && rule.values) {
        return [
            {
                property: rule.property,
                relation: rule.relation,
                values: rule.values,
            },
        ]
    }

    return []
}

export function getDayOfWeek(value: Date): DayOfWeek {
    return dayOfWeekByIndex[value.getDay()]
}

export function matchesAttendanceHourQueue(attendanceHour: DetailedAttendanceHour, queueIdOrName: string): boolean {
    return (
        attendanceHour.attendanceHour.isMain ||
        attendanceHour.queues.some((queue) => queue.id === queueIdOrName || queue.description === queueIdOrName)
    )
}

export function isOnAttendanceTime(attendanceHour: DetailedAttendanceHour, value: Date): boolean {
    const isInsideOffTime = attendanceHour.attendanceHourOffItems.some((offItem) => {
        const startDate = new Date(offItem.startDate)
        const endDate = new Date(offItem.endDate)

        return value.getTime() >= startDate.getTime() && value.getTime() <= endDate.getTime()
    })
    if (isInsideOffTime) {
        return false
    }

    const todaySchedule = attendanceHour.attendanceHourScheduleItems.find(
        (schedule) => schedule.dayOfWeek === getDayOfWeek(value),
    )
    if (!todaySchedule) {
        return false
    }

    const startTime = applyTime(value, todaySchedule.startTime)
    const endTime = applyTime(value, todaySchedule.endTime)

    return value.getTime() >= startTime.getTime() && value.getTime() <= endTime.getTime()
}

function applyTime(value: Date, time: string): Date {
    const [hours, minutes] = time.split(':')
    const date = new Date(value)

    date.setHours(Number(hours))
    date.setMinutes(Number(minutes))
    date.setSeconds(0)
    date.setMilliseconds(0)

    return date
}