audiobookshelf/client/components/widgets/CronExpressionBuilder.vue

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<template>
<div class="w-full py-2">
<div class="flex">
<div class="w-28 h-8 rounded-tl-md shadow-md relative border border-black-200 flex items-center justify-center cursor-pointer hover:text-white" :class="!showAdvancedView ? 'text-gray-200 bg-primary hover:bg-opacity-60' : 'text-gray-400 bg-bg hover:bg-primary hover:bg-opacity-20'" @click="showAdvancedView = false">
<p class="text-sm">Cron Builder</p>
</div>
<div class="w-28 h-8 rounded-tr-md shadow-md relative border border-black-200 flex items-center justify-center -ml-px cursor-pointer hover:text-white" :class="showAdvancedView ? 'text-gray-200 bg-primary hover:bg-opacity-60' : 'text-gray-400 bg-bg hover:bg-primary hover:bg-opacity-20'" @click="showAdvancedView = true">
<p class="text-sm">Advanced</p>
</div>
</div>
<div class="p-4 border border-black-200 rounded-b-md rounded-tr-md -mt-px" style="min-height: 200px">
<template v-if="!showAdvancedView">
<ui-multi-select-dropdown v-model="selectedWeekdays" @input="updateCron" label="Weekdays to run" :items="weekdays" />
<div v-show="selectedWeekdays.length" class="flex items-center py-2">
<ui-text-input-with-label v-model="selectedHour" @input="updateCron" @blur="hourBlur" type="number" label="Hour" class="max-w-20" />
<p class="text-xl px-2 mt-4">:</p>
<ui-text-input-with-label v-model="selectedMinute" @input="updateCron" @blur="minuteBlur" type="number" label="Minute" class="max-w-20" />
</div>
<div v-if="description" class="w-full bg-primary bg-opacity-75 rounded-xl p-4 text-center mt-2">
<p class="text-lg text-gray-200" v-html="description" />
</div>
</template>
<template v-else>
<p class="px-1 text-sm font-semibold">Cron Expression</p>
<ui-text-input ref="customExpressionInput" v-model="customCronExpression" @blur="cronExpressionBlur" label="Cron Expression" :padding-y="2" text-center class="w-full text-4xl -tracking-widest mb-4 font-mono" />
<div class="flex items-center justify-center">
<widgets-loading-spinner v-if="isValidating" class="mr-2" />
<span v-else class="material-icons-outlined mr-2" :class="isValid ? 'text-success' : 'text-error'">{{ isValid ? 'check_circle_outline' : 'error_outline' }}</span>
<p v-if="isValidating" class="text-gray-300 text-lg text-center">Checking cron...</p>
<p v-else-if="customCronError" class="text-error text-lg text-center">{{ customCronError }}</p>
<p v-else class="text-success text-lg text-center">Valid cron expression</p>
</div>
</template>
</div>
</div>
</template>
<script>
export default {
props: {
value: {
type: String,
default: null
}
},
data() {
return {
showAdvancedView: false,
selectedHour: 0,
selectedMinute: 0,
selectedWeekdays: [],
cronExpression: '0 0 * * *',
customCronExpression: '0 0 * * *',
customCronError: '',
isValidating: false,
validatedCron: null,
isValid: true
}
},
computed: {
minuteIsValid() {
return !(isNaN(this.selectedMinute) || this.selectedMinute === '' || this.selectedMinute < 0 || this.selectedMinute > 59)
},
hourIsValid() {
return !(isNaN(this.selectedHour) || this.selectedHour === '' || this.selectedHour < 0 || this.selectedHour > 23)
},
description() {
if (!this.selectedWeekdays.length) return ''
if (!this.hourIsValid) {
return `<span class="text-error">Invalid hour must be 0-23 | ${this.selectedHour < 0 || this.selectedHour > 23}</span>`
}
if (!this.minuteIsValid) {
return `<span class="text-error">Invalid minute must be 0-59</span>`
}
var description = 'Run every '
const weekdayTexts =
this.selectedWeekdays.length === 7
? 'day'
: this.selectedWeekdays
.map((weekday) => {
return this.weekdays.find((w) => w.value === weekday).text
})
.join(', ')
description += `<span class="font-bold text-white">${weekdayTexts}</span>`
const hourString = this.selectedHour.toString()
const minuteString = this.selectedMinute.toString().padStart(2, '0')
description += ` at <span class="font-bold text-white">${hourString}:${minuteString}</span>`
return description
},
weekdays() {
return [
{
text: 'Sunday',
value: 0
},
{
text: 'Monday',
value: 1
},
{
text: 'Tuesday',
value: 2
},
{
text: 'Wednesday',
value: 3
},
{
text: 'Thursday',
value: 4
},
{
text: 'Friday',
value: 5
},
{
text: 'Saturday',
value: 6
}
]
}
},
methods: {
checkBlurExpressionInput() {
if (!this.showAdvancedView || !this.$refs.customExpressionInput) return false
if (this.$refs.customExpressionInput.isFocused) {
this.$refs.customExpressionInput.blur()
return true
}
return false
},
updateCron() {
if (!this.minuteIsValid || !this.hourIsValid || !this.selectedWeekdays.length) {
this.cronExpression = null
return
}
this.selectedWeekdays.sort()
this.cronExpression = `${this.selectedMinute} ${this.selectedHour} * * ${this.selectedWeekdays.join(',')}`
this.customCronExpression = this.cronExpression
this.validatedCron = this.cronExpression
this.isValid = true
this.customCronError = ''
this.$emit('input', this.cronExpression)
},
minuteBlur() {
const v = this.selectedMinute
if (v === '' || v === null || isNaN(v) || v < 0) {
this.selectedMinute = 0
} else if (v > 59) {
this.selectedMinute = 59
} else {
this.selectedMinute = Number(v)
}
this.updateCron()
},
hourBlur() {
const v = this.selectedHour
if (v === '' || v === null || isNaN(v) || v < 0) {
this.selectedHour = 0
} else if (v > 23) {
this.selectedHour = 23
} else {
this.selectedHour = Number(v)
}
this.updateCron()
},
async cronExpressionBlur() {
this.customCronError = ''
if (!this.customCronExpression || this.customCronExpression.split(' ').length !== 5) {
this.customCronError = 'Invalid cron expression'
this.isValid = false
return
}
// if (this.customCronExpression.split(' ')[0] === '*') {
// this.customCronError = 'Cannot use * in minutes position'
// this.isValid = false
// return
// }
if (this.customCronExpression !== this.cronExpression) {
this.selectedWeekdays = []
this.selectedHour = 0
this.selectedMinute = 0
this.cronExpression = this.customCronExpression
}
if (!this.validatedCron || this.validatedCron !== this.cronExpression) {
const validationPayload = await this.validateCron()
this.isValid = validationPayload.isValid
this.validatedCron = this.cronExpression
this.customCronError = validationPayload.error || ''
}
if (this.isValid) {
this.$emit('input', this.cronExpression)
}
},
validateCron() {
this.isValidating = true
return this.$axios
.$post('/api/validate-cron', { expression: this.customCronExpression })
.then(() => {
this.isValidating = false
return {
isValid: true
}
})
.catch((error) => {
console.error('Invalid cron', error)
var errMsg = error.response ? error.response.data || '' : ''
this.isValidating = false
return {
isValid: false,
error: errMsg || 'Invalid cron expression'
}
})
},
init() {
if (!this.value) return
// TODO: parse
const pieces = this.value.split(' ')
if (pieces.length !== 5) {
console.error('Invalid cron expression input', this.value)
return
}
var isCustomCron = false
if (isNaN(pieces[0]) || isNaN(pieces[1])) {
isCustomCron = true
} else if (pieces[2] !== '*' || pieces[3] !== '*') {
isCustomCron = true
} else if (pieces[4].split(',').some((num) => isNaN(num))) {
isCustomCron = true
}
if (isCustomCron) {
this.showAdvancedView = true
} else {
this.selectedWeekdays = pieces[4].split(',').map((num) => Number(num))
this.selectedHour = pieces[1]
this.selectedMinute = pieces[0]
}
this.cronExpression = this.value
this.customCronExpression = this.value
}
},
mounted() {
this.init()
}
}
</script>