| 1 | import { SmilePlus } from "lucide-react"; |
| 2 | import { useFetcher } from "react-router"; |
| 3 | |
| 4 | import { REACTIONS, type ReactionContent, type ReactionGroup } from "@g1t/contracts"; |
| 5 | |
| 6 | import { Button } from "./ui/button"; |
| 7 | import { Hint } from "./ui/hint"; |
| 8 | import { Popover, PopoverContent, PopoverTrigger } from "./ui/popover"; |
| 9 | |
| 10 | const EMOJI = Object.fromEntries(REACTIONS.map((one) => [one.content, one])) as Record< |
| 11 | ReactionContent, |
| 12 | (typeof REACTIONS)[number] |
| 13 | >; |
| 14 | |
| 15 | /** "ana, bo and g1t" for who reacted; "You" for the viewer. */ |
| 16 | function who(users: string[], viewer: string | null) { |
| 17 | const names = users.map((name) => (name === viewer ? "You" : name)); |
| 18 | if (names.length <= 1) return names.join(""); |
| 19 | return `${names.slice(0, -1).join(", ")} and ${names[names.length - 1]}`; |
| 20 | } |
| 21 | |
| 22 | /** `groups` with the viewer's reaction added or taken back, as the page shows it before the service answers. */ |
| 23 | function applied(groups: ReactionGroup[], viewer: string, content: ReactionContent, remove: boolean): ReactionGroup[] { |
| 24 | const next = groups |
| 25 | .map((group) => { |
| 26 | if (group.content !== content) return group; |
| 27 | const users = remove ? group.users.filter((name) => name !== viewer) : group.users.includes(viewer) ? group.users : [...group.users, viewer]; |
| 28 | return { ...group, users, count: users.length }; |
| 29 | }) |
| 30 | .filter((group) => group.count > 0); |
| 31 | if (!remove && !next.some((group) => group.content === content)) next.push({ content, count: 1, users: [viewer] }); |
| 32 | const order = REACTIONS.map((one) => one.content); |
| 33 | return next.sort((a, b) => order.indexOf(a.content) - order.indexOf(b.content)); |
| 34 | } |
| 35 | |
| 36 | /** |
| 37 | * How people (and g1t) reacted to an issue's or pull request's description |
| 38 | * (no `commentId`) or to one of its comments: a pill per emoji with how |
| 39 | * many, lit when the viewer is one of them, and who when hovered. Signed |
| 40 | * in, a pill adds or takes back the viewer's own and the smiley offers the |
| 41 | * rest; the page's action answers `react`. g1t's 👀 says it has seen what |
| 42 | * it was asked and is on it. |
| 43 | */ |
| 44 | export function Reactions({ |
| 45 | reactions, |
| 46 | commentId, |
| 47 | viewer, |
| 48 | className = "", |
| 49 | }: { |
| 50 | reactions?: ReactionGroup[]; |
| 51 | commentId?: string; |
| 52 | /** The signed-in viewer's username, or null: then the pills only show. */ |
| 53 | viewer: string | null; |
| 54 | className?: string; |
| 55 | }) { |
| 56 | const fetcher = useFetcher(); |
| 57 | let groups = reactions ?? []; |
| 58 | // What the viewer just did, shown at once. |
| 59 | const pending = fetcher.formData; |
| 60 | if (viewer && pending?.get("action") === "react") { |
| 61 | const content = String(pending.get("content")) as ReactionContent; |
| 62 | if (EMOJI[content]) groups = applied(groups, viewer, content, pending.get("remove") === "1"); |
| 63 | } |
| 64 | if (groups.length === 0 && !viewer) return null; |
| 65 | const react = (content: ReactionContent, remove: boolean) => |
| 66 | fetcher.submit( |
| 67 | { action: "react", comment: commentId ?? "", content, remove: remove ? "1" : "" }, |
| 68 | { method: "post", preventScrollReset: true }, |
| 69 | ); |
| 70 | return ( |
| 71 | <div className={`flex flex-wrap items-center gap-1 ${className}`} aria-label="Reactions"> |
| 72 | {groups.map((group) => { |
| 73 | const mine = viewer != null && group.users.includes(viewer); |
| 74 | const { emoji, label } = EMOJI[group.content]; |
| 75 | return ( |
| 76 | <Hint key={group.content} label={`${who(group.users, viewer)} reacted with ${label.toLowerCase()}`}> |
| 77 | <button |
| 78 | type="button" |
| 79 | aria-pressed={mine} |
| 80 | aria-label={`${label}, ${group.count} ${group.count === 1 ? "reaction" : "reactions"}${mine ? ", including yours" : ""}`} |
| 81 | disabled={!viewer} |
| 82 | onClick={() => react(group.content, mine)} |
| 83 | className={`flex h-6 items-center gap-1 rounded-full border px-1.5 text-xs font-medium tabular-nums transition-colors disabled:cursor-default ${ |
| 84 | mine |
| 85 | ? "border-accent/60 bg-accent/15 text-accent hover:bg-accent/25" |
| 86 | : "border-line bg-surface text-muted hover:border-line-strong hover:bg-raised hover:text-fg" |
| 87 | }`} |
| 88 | > |
| 89 | <span aria-hidden className="text-sm leading-none"> |
| 90 | {emoji} |
| 91 | </span> |
| 92 | {group.count} |
| 93 | </button> |
| 94 | </Hint> |
| 95 | ); |
| 96 | })} |
| 97 | {viewer && ( |
| 98 | <Popover> |
| 99 | <PopoverTrigger asChild> |
| 100 | <Button |
| 101 | type="button" |
| 102 | aria-label="Add a reaction" |
| 103 | variant="outline" |
| 104 | className="h-6 rounded-full bg-surface px-1.5 text-faint hover:bg-raised" |
| 105 | > |
| 106 | <SmilePlus size={14} /> |
| 107 | </Button> |
| 108 | </PopoverTrigger> |
| 109 | <PopoverContent align="start" className="w-auto p-1.5"> |
| 110 | <div className="flex gap-0.5"> |
| 111 | {REACTIONS.map(({ content, emoji, label }) => { |
| 112 | const mine = groups.some((group) => group.content === content && group.users.includes(viewer)); |
| 113 | return ( |
| 114 | <Hint key={content} label={label}> |
| 115 | <Button |
| 116 | type="button" |
| 117 | variant="ghost" |
| 118 | size="icon-sm" |
| 119 | aria-label={label} |
| 120 | aria-pressed={mine} |
| 121 | className={`text-base ${mine ? "bg-accent/15" : ""}`} |
| 122 | onClick={() => react(content, mine)} |
| 123 | > |
| 124 | {emoji} |
| 125 | </Button> |
| 126 | </Hint> |
| 127 | ); |
| 128 | })} |
| 129 | </div> |
| 130 | </PopoverContent> |
| 131 | </Popover> |
| 132 | )} |
| 133 | </div> |
| 134 | ); |
| 135 | } |