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import { parseISO8601, timeNowFrame } from '../utils/algorithms/time.utils.js'
import { formatters } from './expression-formatters.js'
const defaultFormat = formatters['as is'].format
/** @type {CaptureExpressionMap} */
const baseCaptureExpressions = {
number: {
value: 400,
matchPredicate: () => (text) => isNumeric(text),
defaultFormat: formatters.number.format,
isConstant: true,
},
string: {
value: 300,
matchPredicate: () => (text) =>
(text.startsWith('"') && text.endsWith('"')) ||
(text.startsWith('\'') && text.endsWith('\'')) ||
(text.startsWith('`') && text.endsWith('`')),
defaultFormat,
isConstant: true,
},
}
/** @type {CaptureExpressionMap} */
const specialCaptureExpressions = {
string: {
value: 1 << 20,
matchPredicate: (match) => (text) => match === text,
defaultFormat,
isConstant: true,
},
regex: {
value: 200,
matchPredicate: (regexPattern) => {
const regex = new RegExp(regexPattern)
return (text) => regex.test(text)
},
defaultFormat,
isConstant: true,
},
any: {
value: 100,
matchPredicate: () => () => true,
defaultFormat,
isConstant: true,
},
}
/** @type {CaptureExpressionMap} */
const baseTimeCaptureExpressions = {
// normal times
'unix timestamp': {
value: 550,
matchPredicate: () => (text) => isNumeric(text),
defaultFormat: formatters.datetime.format,
isConstant: false,
},
'iso 8601': {
value: 550,
matchPredicate: () => (text) => !isNaN(parseISO8601(text)),
defaultFormat: formatters.datetime.format,
isConstant: false,
},
date: {
value: 500,
matchPredicate: () => (text) => isNumeric(text) || !isNaN(parseISO8601(text)),
defaultFormat: formatters.datetime.format,
isConstant: false,
},
'unix millis': {
value: 550,
matchPredicate: () => (text) => isNumeric(text),
defaultFormat: formatters.timestamp.format,
isConstant: false,
},
}
/** @type {Record<string, RelativeTimeCaptureExpressionPrefix>} */
const relativeTimeCaptureExpressionPrefix = {
past: {
additionalValue: 50,
defaultMatchPredicate: (prev) => () => {
const predicate = prev()
return (text) => predicate(text) && timeIntervalCaptureExpressionPrefix.millisecond.currentTimeCompare(text) <= 0
},
},
present: {
additionalValue: 100,
defaultMatchPredicate: (prev) => () => {
const predicate = prev()
return (text) => predicate(text) && timeIntervalCaptureExpressionPrefix.second.currentTimeCompare(text) === 0
},
},
future: {
additionalValue: 50,
defaultMatchPredicate: (prev) => () => {
const predicate = prev()
return (text) => predicate(text) && timeIntervalCaptureExpressionPrefix.millisecond.currentTimeCompare(text) > 0
},
},
}
/** @type {Record<string, TimeIntervalCaptureExpressionPrefix>} */
const timeIntervalCaptureExpressionPrefix = {
millisecond: {
additionalValue: 33,
currentTimeCompare: (text) => {
const timeText = isNumeric(text) ? new Date((+text) * 1000).valueOf() : parseISO8601(text)
const timeNow = timeNowFrame()
return timeText - timeNow
},
},
second: {
additionalValue: 30,
currentTimeCompare: (text) => {
const timeText = isNumeric(text) ? new Date((+text) * 1000).valueOf() : parseISO8601(text)
const timeNow = timeNowFrame()
return Math.floor(timeText / 1000) - Math.floor(timeNow / 1000)
},
},
minute: {
additionalValue: 29,
currentTimeCompare: (text) => {
const timeText = isNumeric(text) ? new Date((+text) * 1000).valueOf() : parseISO8601(text)
const timeNow = timeNowFrame()
return Math.floor(timeText / 60_000) - Math.floor(timeNow / 60_000)
},
},
hour: {
additionalValue: 28,
currentTimeCompare: (text) => {
const timeText = isNumeric(text) ? new Date((+text) * 1000).valueOf() : parseISO8601(text)
const timeNow = timeNowFrame()
return Math.floor(timeText / 360_000) - Math.floor(timeNow / 360_000)
},
},
day: {
additionalValue: 27,
currentTimeCompare: (text) => {
const timeText = isNumeric(text) ? new Date((+text) * 1000).valueOf() : parseISO8601(text)
const timeNow = timeNowFrame()
return Math.floor(timeText / 86_400_000) - Math.floor(timeNow / 86_400_000)
},
},
week: {
additionalValue: 26,
currentTimeCompare: (text) => {
const date = new Date(isNumeric(text) ? (+text) * 1000 : parseISO8601(text))
const dateNow = new Date(timeNowFrame())
const yearNow = dateNow.getFullYear()
const yearDiff = date.getFullYear() - yearNow
if (yearDiff !== 0) { return yearDiff }
const oneJan = new Date(yearNow, 0, 1)
const oneJanDay = oneJan.getDay()
const oneJanTimeStamp = oneJan.valueOf()
const weekNow = Math.ceil((((dateNow.valueOf() - oneJanTimeStamp) / 86400000) + oneJanDay + 1) / 7)
const week = Math.ceil((((date.valueOf() - oneJanTimeStamp) / 86400000) + oneJanDay + 1) / 7)
return week - weekNow
},
},
month: {
additionalValue: 25,
currentTimeCompare: (text) => {
const date = new Date(isNumeric(text) ? (+text) * 1000 : parseISO8601(text))
const dateNow = new Date(timeNowFrame())
return date.getFullYear() * 12 + date.getMonth() - dateNow.getFullYear() * 12 + dateNow.getMonth()
},
},
year: {
additionalValue: 24,
currentTimeCompare: (text) => {
const date = new Date(isNumeric(text) ? (+text) * 1000 : parseISO8601(text))
const dateNow = new Date(timeNowFrame())
return date.getFullYear() - dateNow.getFullYear()
},
},
}
/**
* @returns {CaptureExpressionMap} build time capture expressions
*/
function buildTimeCaptureExpressions () {
const { entries, fromEntries } = Object
return fromEntries(entries(baseTimeCaptureExpressions).flatMap(([baseKey, baseInfo]) => {
const result = [[baseKey, baseInfo]]
for (const [relativePrefixKey, relativePrefixInfo] of entries(relativeTimeCaptureExpressionPrefix)) {
const infoWithRelTime = {
...baseInfo,
value: baseInfo.value + relativePrefixInfo.additionalValue,
matchPredicate: relativePrefixInfo.defaultMatchPredicate(baseInfo.matchPredicate),
}
result.push([
`${relativePrefixKey} ${baseKey}`,
infoWithRelTime,
])
for (const [intervalKey, intervalInfo] of entries(timeIntervalCaptureExpressionPrefix)) {
result.push([
`${relativePrefixKey} ${intervalKey} ${baseKey}`, {
...infoWithRelTime,
value: infoWithRelTime.value + intervalInfo.additionalValue,
}])
}
}
return result
}))
}
export const captureExpressions = {
special: specialCaptureExpressions,
named: {
...baseCaptureExpressions,
...buildTimeCaptureExpressions(),
},
}
/** @typedef {Record<string, CaptureExpressionInfo>} CaptureExpressionMap */
/**
* @typedef {object} CaptureExpressionInfo
*
* Capture expression information used by key parser, as to get the correct matcher
* based on the ket priority.
* @property {number} value - Priority value of the capture expression, the higher value, the key is used when conflicting keys are found.
* @property {MatchPredicateCreator} matchPredicate - Match predicate creator. The resulting match predicate is based on the `parameters` used
* (e.g. creating a matcher from a regex pattern).
* @property {FormatCall} defaultFormat - Default format to be used when no formatter is explicitly applied.
* @property {boolean} isConstant - A flag to indicate whether the matcher will always match the same key in a translation map,
* It helps to decide when to query the translation map for the same key.
*/
/** @typedef {import('./expression-formatters.js').FormatCall} FormatCall */
/** @typedef {(text: string) => boolean} MatchPredicate */
/** @typedef {(...parameters: string[]) => MatchPredicate} MatchPredicateCreator */
/**
* @typedef {object} TimeIntervalCaptureExpressionPrefix
* @property {number} additionalValue - Additional Priority value of the capture expression, the higher value, the key is used when conflicting keys are found.
* @property {(timeStr: string) => number} currentTimeCompare - compare text formatted date to current time. returns negative number when `timeStr` is in the past, positive in the future, 0 in the present
*/
/**
* @typedef {object} RelativeTimeCaptureExpressionPrefix
* @property {number} additionalValue - Additional Priority value of the capture expression, the higher value, the key is used when conflicting keys are found.
* @property {(prev: MatchPredicateCreator) => MatchPredicateCreator} defaultMatchPredicate - predicate to use when no no time unit is defined (e.g. present **day** date).
*/
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