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| 1 | +'use client'; |
| 2 | + |
| 3 | +import { useCallback, useEffect, useMemo, useState } from "react"; |
| 4 | +import { useRouter, usePathname, useSearchParams } from "next/navigation"; |
| 5 | +import { Calendar as CalendarIcon, ChevronDown } from "lucide-react"; |
| 6 | +import { format } from "date-fns"; |
| 7 | +import type { DateRange } from "react-day-picker"; |
| 8 | + |
| 9 | +import { Button } from "@/components/ui/button"; |
| 10 | +import { Calendar } from "@/components/ui/calendar"; |
| 11 | +import { |
| 12 | + Popover, |
| 13 | + PopoverContent, |
| 14 | + PopoverTrigger, |
| 15 | +} from "@/components/ui/popover"; |
| 16 | + |
| 17 | +interface DateFilterProps { |
| 18 | + since?: string; |
| 19 | + until?: string; |
| 20 | +} |
| 21 | + |
| 22 | +// Parse 'YYYY-MM-DD' as a date in the local calendar (not UTC midnight). |
| 23 | +const parseLocalDate = (s: string): Date | undefined => { |
| 24 | + const match = /^(\d{4})-(\d{2})-(\d{2})$/.exec(s); |
| 25 | + if (!match) { |
| 26 | + return undefined; |
| 27 | + } |
| 28 | + return new Date(Number(match[1]), Number(match[2]) - 1, Number(match[3])); |
| 29 | +}; |
| 30 | + |
| 31 | +const formatLocalDate = (d: Date): string => { |
| 32 | + const y = d.getFullYear(); |
| 33 | + const m = String(d.getMonth() + 1).padStart(2, '0'); |
| 34 | + const day = String(d.getDate()).padStart(2, '0'); |
| 35 | + return `${y}-${m}-${day}`; |
| 36 | +}; |
| 37 | + |
| 38 | +const formatLabel = (from: Date | undefined, to: Date | undefined): string => { |
| 39 | + if (!from && !to) { |
| 40 | + return 'All time'; |
| 41 | + } |
| 42 | + const currentYear = new Date().getFullYear(); |
| 43 | + const fmt = (d: Date) => |
| 44 | + d.getFullYear() === currentYear ? format(d, 'MMM d') : format(d, 'MMM d, yyyy'); |
| 45 | + |
| 46 | + if (from && to) { |
| 47 | + if (formatLocalDate(from) === formatLocalDate(to)) { |
| 48 | + return fmt(from); |
| 49 | + } |
| 50 | + return `${fmt(from)} - ${fmt(to)}`; |
| 51 | + } |
| 52 | + return fmt((from ?? to) as Date); |
| 53 | +}; |
| 54 | + |
| 55 | +export const DateFilter = ({ since, until }: DateFilterProps) => { |
| 56 | + const router = useRouter(); |
| 57 | + const pathname = usePathname(); |
| 58 | + const searchParams = useSearchParams(); |
| 59 | + |
| 60 | + const [isOpen, setIsOpen] = useState(false); |
| 61 | + const [timeZone, setTimeZone] = useState<string | undefined>(undefined); |
| 62 | + |
| 63 | + const fromDate = useMemo(() => (since ? parseLocalDate(since) : undefined), [since]); |
| 64 | + const toDate = useMemo(() => (until ? parseLocalDate(until) : undefined), [until]); |
| 65 | + |
| 66 | + const [month, setMonth] = useState<Date | undefined>(fromDate); |
| 67 | + |
| 68 | + useEffect(() => { |
| 69 | + setTimeZone(Intl.DateTimeFormat().resolvedOptions().timeZone); |
| 70 | + }, []); |
| 71 | + |
| 72 | + const selectedRange: DateRange | undefined = useMemo(() => { |
| 73 | + if (!fromDate && !toDate) { |
| 74 | + return undefined; |
| 75 | + } |
| 76 | + return { from: fromDate, to: toDate }; |
| 77 | + }, [fromDate, toDate]); |
| 78 | + |
| 79 | + // Track in-progress selection locally so DayPicker can distinguish between |
| 80 | + // a first click (`{from, to: undefined}`) and a completed range. Without |
| 81 | + // this, controlling `selected` directly off the URL would make every click |
| 82 | + // look like a fresh range start. |
| 83 | + const [draftRange, setDraftRange] = useState<DateRange | undefined>(selectedRange); |
| 84 | + |
| 85 | + // Sync the draft with the URL whenever the popover is (re)opened, so a |
| 86 | + // half-finished selection from a previous session doesn't carry over. |
| 87 | + useEffect(() => { |
| 88 | + if (isOpen) { |
| 89 | + setDraftRange(selectedRange); |
| 90 | + } |
| 91 | + }, [isOpen, selectedRange]); |
| 92 | + |
| 93 | + const navigateWithRange = useCallback( |
| 94 | + (from: Date | undefined, to: Date | undefined) => { |
| 95 | + const params = new URLSearchParams(searchParams); |
| 96 | + if (from) { |
| 97 | + params.set('since', formatLocalDate(from)); |
| 98 | + } else { |
| 99 | + params.delete('since'); |
| 100 | + } |
| 101 | + if (to) { |
| 102 | + params.set('until', formatLocalDate(to)); |
| 103 | + } else { |
| 104 | + params.delete('until'); |
| 105 | + } |
| 106 | + params.delete('page'); |
| 107 | + const query = params.toString(); |
| 108 | + setIsOpen(false); |
| 109 | + router.push(`${pathname}${query ? `?${query}` : ''}`); |
| 110 | + }, |
| 111 | + [pathname, router, searchParams], |
| 112 | + ); |
| 113 | + |
| 114 | + const onSelect = useCallback( |
| 115 | + (selected: DateRange | undefined) => { |
| 116 | + const draftWasComplete = Boolean(draftRange?.from && draftRange.to); |
| 117 | + const draftWasPartial = Boolean(draftRange?.from && !draftRange.to); |
| 118 | + |
| 119 | + // When a complete range already exists, react-day-picker v9 adjusts |
| 120 | + // the existing range based on where the click lands (moving one |
| 121 | + // endpoint), producing a new complete range in a single click. We |
| 122 | + // require two clicks to form a new range, so intercept that case: |
| 123 | + // infer the clicked date and demote to a partial range. |
| 124 | + if (draftWasComplete && selected?.from && selected.to) { |
| 125 | + const prevFromTime = draftRange!.from!.getTime(); |
| 126 | + const prevToTime = draftRange!.to!.getTime(); |
| 127 | + const fromIsNew = |
| 128 | + selected.from.getTime() !== prevFromTime && |
| 129 | + selected.from.getTime() !== prevToTime; |
| 130 | + const toIsNew = |
| 131 | + selected.to.getTime() !== prevFromTime && |
| 132 | + selected.to.getTime() !== prevToTime; |
| 133 | + // Prefer whichever endpoint is actually new; fall back to |
| 134 | + // `from` if both happen to match (shouldn't happen in practice). |
| 135 | + const clickedDate = fromIsNew |
| 136 | + ? selected.from |
| 137 | + : toIsNew |
| 138 | + ? selected.to |
| 139 | + : selected.from; |
| 140 | + setDraftRange({ from: clickedDate, to: undefined }); |
| 141 | + return; |
| 142 | + } |
| 143 | + |
| 144 | + // react-day-picker v9 can also return a complete single-day range |
| 145 | + // (`{from: D, to: D}`) on a single click when there was no prior |
| 146 | + // partial selection. Demote that to a partial range too. |
| 147 | + const isSingleDay = |
| 148 | + selected?.from && |
| 149 | + selected.to && |
| 150 | + selected.from.getTime() === selected.to.getTime(); |
| 151 | + |
| 152 | + if (isSingleDay && !draftWasPartial) { |
| 153 | + setDraftRange({ from: selected!.from, to: undefined }); |
| 154 | + return; |
| 155 | + } |
| 156 | + |
| 157 | + setDraftRange(selected); |
| 158 | + if (selected?.from && selected.to) { |
| 159 | + navigateWithRange(selected.from, selected.to); |
| 160 | + } |
| 161 | + }, |
| 162 | + [draftRange, navigateWithRange], |
| 163 | + ); |
| 164 | + |
| 165 | + const onClear = useCallback(() => { |
| 166 | + navigateWithRange(undefined, undefined); |
| 167 | + }, [navigateWithRange]); |
| 168 | + |
| 169 | + const onToday = useCallback(() => { |
| 170 | + setMonth(new Date()); |
| 171 | + }, []); |
| 172 | + |
| 173 | + const label = formatLabel(fromDate, toDate); |
| 174 | + const hasFilter = Boolean(fromDate || toDate); |
| 175 | + |
| 176 | + return ( |
| 177 | + <Popover open={isOpen} onOpenChange={setIsOpen}> |
| 178 | + <PopoverTrigger asChild> |
| 179 | + <Button |
| 180 | + variant="outline" |
| 181 | + size="sm" |
| 182 | + className="h-8 gap-2 flex-shrink-0" |
| 183 | + aria-label="Filter by date" |
| 184 | + > |
| 185 | + <CalendarIcon className="h-4 w-4 flex-shrink-0" /> |
| 186 | + <span className="text-sm truncate max-w-[180px]">{label}</span> |
| 187 | + <ChevronDown className="h-3 w-3 flex-shrink-0 text-muted-foreground" /> |
| 188 | + </Button> |
| 189 | + </PopoverTrigger> |
| 190 | + <PopoverContent className="w-auto p-0" align="start"> |
| 191 | + <Calendar |
| 192 | + mode="range" |
| 193 | + captionLayout="dropdown" |
| 194 | + selected={draftRange} |
| 195 | + onSelect={onSelect} |
| 196 | + month={month} |
| 197 | + onMonthChange={setMonth} |
| 198 | + timeZone={timeZone} |
| 199 | + numberOfMonths={1} |
| 200 | + disabled={{ after: new Date() }} |
| 201 | + /> |
| 202 | + <div className="flex flex-row items-center gap-4 px-3 py-2 border-t"> |
| 203 | + <Button |
| 204 | + variant="link" |
| 205 | + size="sm" |
| 206 | + onClick={onClear} |
| 207 | + disabled={!hasFilter} |
| 208 | + className="h-auto p-0 text-foreground font-medium" |
| 209 | + > |
| 210 | + Clear |
| 211 | + </Button> |
| 212 | + <Button |
| 213 | + variant="link" |
| 214 | + size="sm" |
| 215 | + onClick={onToday} |
| 216 | + className="h-auto p-0" |
| 217 | + > |
| 218 | + Today |
| 219 | + </Button> |
| 220 | + </div> |
| 221 | + </PopoverContent> |
| 222 | + </Popover> |
| 223 | + ); |
| 224 | +}; |
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