Ai Task List

1"use client";
2 
3import { cn } from "@/lib/utils";
4import { motion, useReducedMotion } from "motion/react";
5import { Fragment } from "react";
6 
7const SPRING_DEFAULT = {
8  bounce: 0.1,
9  duration: 0.25,
10  type: "spring" as const,
11};
12const EASE_IN_OUT = [0.645, 0.045, 0.355, 1] as const;
13const CHECK_PATH = "M 3.5 7.5 L 6 10 L 10.5 4.5";
14const BOX_SIZE = 14;
15const UNDERLINE_SECONDS = 1.4;
16 
17export type AITaskStatus = "pending" | "running" | "done" | "failed";
18 
19export type AITask = {
20  /** Nested sub-steps, one level. */
21  children?: AITask[];
22  id: string;
23  label: string;
24  /** Short right-aligned note, e.g. "12/12" or "3 files". */
25  note?: string;
26  status: AITaskStatus;
27};
28 
29export type AITaskListProps = {
30  className?: string;
31  /** Heading text. The counts are derived, never passed in. */
32  label?: string;
33  tasks: AITask[];
34};
35 
36const flatten = (tasks: AITask[]): AITask[] =>
37  tasks.flatMap((task) => [task, ...flatten(task.children ?? [])]);
38 
39const SUCCESS_COLOR = "oklch(72% 0.17 150)";
40const DANGER_COLOR = "oklch(63% 0.21 25)";
41 
42const boxStroke = (status: AITaskStatus): string => {
43  if (status === "failed") {
44    return DANGER_COLOR;
45  }
46  if (status === "done") {
47    return SUCCESS_COLOR;
48  }
49  return "currentColor";
50};
51 
52const TaskBox = ({
53  status,
54  shouldReduceMotion,
55}: {
56  shouldReduceMotion: boolean;
57  status: AITaskStatus;
58}) => {
59  const isDone = status === "done";
60  const isFailed = status === "failed";
61 
62  return (
63    <span className="mt-0.5 flex size-3.5 shrink-0 items-center justify-center">
64      <svg
65        aria-hidden="true"
66        className="size-3.5"
67        viewBox={`0 0 ${BOX_SIZE} ${BOX_SIZE}`}
68      >
69        <motion.rect
70          animate={{
71            fillOpacity: isDone ? 0.12 : 0,
72            stroke: boxStroke(status),
73          }}
74          fill={isFailed ? DANGER_COLOR : SUCCESS_COLOR}
75          height={12}
76          rx={3.5}
77          strokeWidth={1.4}
78          transition={shouldReduceMotion ? { duration: 0 } : { duration: 0.2 }}
79          width={12}
80          x={1}
81          y={1}
82        />
83        {isDone && (
84          // Drawn, not faded: a check that draws itself reads as the act of
85          // ticking the box rather than a state that was always there.
86          // Drawn with a CSS keyframe rather than a motion value.
87          //
88          // Neither motion's `pathLength` shorthand nor an explicit
89          // `strokeDashoffset` animation resolved on these paths — the dash
90// … truncated