<script lang="ts">
    import { defineComponent, ref, watch } from 'vue'
    import { useI18n } from '/@/hooks/web/useI18n'
    import { useIntervalFn } from '@vueuse/core'
    import { dateUtil, formatToDate, formatToDateTime } from '/@/utils/dateUtil'
    import { isNumber, isObject, isString } from '/@/utils/is'
    import { propTypes } from '/@/utils/propTypes'

    const ONE_SECONDS = 1000
    const ONE_MINUTES = ONE_SECONDS * 60
    const ONE_HOUR = ONE_MINUTES * 60
    const ONE_DAY = ONE_HOUR * 24

    export default defineComponent({
        name: 'Time',
        props: {
            value: propTypes.oneOfType([propTypes.number, propTypes.instanceOf(Date), propTypes.string]).isRequired,
            step: propTypes.number.def(60),
            mode: propTypes.oneOf(['date', 'datetime', 'relative']).def('relative'),
        },
        setup(props) {
            const date = ref('')

            const { t } = useI18n()

            useIntervalFn(setTime, props.step * ONE_SECONDS)

            watch(
                () => props.value,
                () => {
                    setTime()
                },
                { immediate: true },
            )

            function getTime() {
                const { value } = props
                let time = 0
                if (isNumber(value)) {
                    const timestamp = value.toString().length > 10 ? value : value * 1000
                    time = new Date(timestamp).getTime()
                } else if (isString(value)) {
                    time = new Date(value).getTime()
                } else if (isObject(value)) {
                    time = value.getTime()
                }
                return time
            }

            function setTime() {
                const { mode, value } = props
                const time = getTime()
                if (mode === 'relative') {
                    date.value = getRelativeTime(time)
                } else {
                    if (mode === 'datetime') {
                        date.value = formatToDateTime(value)
                    } else if (mode === 'date') {
                        date.value = formatToDate(value)
                    }
                }
            }

            function getRelativeTime(timeStamp: number) {
                const currentTime = new Date().getTime()

                // Determine whether the incoming timestamp is earlier than the current timestamp
                const isBefore = dateUtil(timeStamp).isBefore(currentTime)

                let diff = currentTime - timeStamp
                if (!isBefore) {
                    diff = -diff
                }

                let resStr = ''
                const dirStr = isBefore ? t('component.time.before') : t('component.time.after')

                if (diff < ONE_SECONDS) {
                    resStr = t('component.time.just')
                    // Less than or equal to 59 seconds
                } else if (diff < ONE_MINUTES) {
                    resStr = Math.floor(diff / ONE_SECONDS) + t('component.time.seconds') + dirStr
                    // More than 59 seconds, less than or equal to 59 minutes and 59 seconds
                } else if (diff >= ONE_MINUTES && diff < ONE_HOUR) {
                    resStr = Math.floor(diff / ONE_MINUTES) + t('component.time.minutes') + dirStr
                    // More than 59 minutes and 59 seconds, less than or equal to 23 hours, 59 minutes and 59 seconds
                } else if (diff >= ONE_HOUR && diff < ONE_DAY) {
                    resStr = Math.floor(diff / ONE_HOUR) + t('component.time.hours') + dirStr
                    // More than 23 hours, 59 minutes and 59 seconds, less than or equal to 29 days, 59 minutes and 59 seconds
                } else if (diff >= ONE_DAY && diff < 2623860000) {
                    resStr = Math.floor(diff / ONE_DAY) + t('component.time.days') + dirStr
                    // More than 29 days, 59 minutes, 59 seconds, less than 364 days, 23 hours, 59 minutes, 59 seconds, and the incoming timestamp is earlier than the current
                } else if (diff >= 2623860000 && diff <= 31567860000 && isBefore) {
                    resStr = dateUtil(timeStamp).format('MM-DD-HH-mm')
                } else {
                    resStr = dateUtil(timeStamp).format('YYYY')
                }
                return resStr
            }

            return { date }
        },
    })
</script>

<template>
    <span>{{ date }}</span>
</template>
