Animate Text Input Typing

"use client";

import * as React from "react";
import {
  TextCursorTypingInput,
  type CharAnimation,
  type CursorVariant,
  type InputVariant,
} from "@/components/ui/animate-text-input-typing";

// ---------------------------------------------------------------------------
// Section
// ---------------------------------------------------------------------------

function Section({
  title,
  description,
  children,
}: {
  title: string;
  description?: string;
  children: React.ReactNode;
}) {
  return (
    <section className="flex flex-col gap-6">
      <div className="flex flex-col gap-1">
        <h2 className="text-[11px] font-mono uppercase tracking-widest text-muted-foreground">
          {title}
        </h2>
        {description && (
          <p className="text-xs text-muted-foreground/60 max-w-lg">
            {description}
          </p>
        )}
      </div>
      {children}
    </section>
  );
}

// ---------------------------------------------------------------------------
// Row
// ---------------------------------------------------------------------------

function Row({
  label,
  children,
}: {
  label: string;
  children: React.ReactNode;
}) {
  return (
    <div className="flex flex-col gap-2">
      <span className="text-[11px] font-mono text-muted-foreground/50">
        {label}
      </span>
      {children}
    </div>
  );
}

// ---------------------------------------------------------------------------
// Chip
// ---------------------------------------------------------------------------

function Chip({
  active,
  onClick,
  children,
}: {
  active: boolean;
  onClick: () => void;
  children: React.ReactNode;
}) {
  return (
    <button
      onClick={onClick}
      className={`px-3 py-1.5 rounded-lg text-xs font-mono transition-all border ${
        active
          ? "border-foreground/20 bg-foreground text-background"
          : "border-border bg-muted text-muted-foreground hover:text-foreground"
      }`}
    >
      {children}
    </button>
  );
}

// ---------------------------------------------------------------------------
// Controlled example (sub-component)
// ---------------------------------------------------------------------------

function ControlledExample() {
  const [value, setValue] = React.useState("Edit me — I'm controlled");

  return (
    <div className="flex flex-col gap-4">
      <TextCursorTypingInput
        value={value}
        onChange={setValue}
        inputVariant="outline"
        charAnimation="bounce"
        color="hsl(150, 80%, 50%)"
        className="w-full"
        placeholder="Controlled input"
      />
      <div className="flex gap-2 flex-wrap">
        {["Hello world", "Unlumen UI ✦", "Controlled mode"].map((preset) => (
          <button
            key={preset}
            onClick={() => setValue(preset)}
            className="rounded-lg border border-border bg-muted px-3 py-1.5 text-xs font-mono text-muted-foreground hover:text-foreground transition-colors"
          >
            &ldquo;{preset}&rdquo;
          </button>
        ))}
        <button
          onClick={() => setValue("")}
          className="rounded-lg border border-border bg-muted px-3 py-1.5 text-xs font-mono text-muted-foreground hover:text-foreground transition-colors"
        >
          Clear
        </button>
      </div>
      <p className="font-mono text-[11px] text-muted-foreground/40">
        value: &ldquo;{value}&rdquo;
      </p>
    </div>
  );
}

// ---------------------------------------------------------------------------
// Playground
// ---------------------------------------------------------------------------

const CHAR_ANIMS: CharAnimation[] = [
  "spring",
  "bounce",
  "fade",
  "slide",
  "wave",
  "typewriter",
];
const CURSOR_VARIANTS: CursorVariant[] = ["line", "block", "underline", "glow"];
const INPUT_VARIANTS: InputVariant[] = [
  "default",
  "ghost",
  "outline",
  "filled",
  "terminal",
  "minimal",
  "pill",
];
const CURSOR_COLORS = [
  { label: "Blue", value: "hsl(220, 100%, 65%)" },
  { label: "Green", value: "hsl(150, 80%, 50%)" },
  { label: "Purple", value: "hsl(270, 90%, 65%)" },
  { label: "Orange", value: "hsl(30, 100%, 60%)" },
  { label: "Red", value: "hsl(0, 90%, 60%)" },
];

function Playground() {
  const [charAnim, setCharAnim] = React.useState<CharAnimation>("spring");
  const [cursorVariant, setCursorVariant] =
    React.useState<CursorVariant>("line");
  const [inputVariant, setInputVariant] =
    React.useState<InputVariant>("default");
  const [color, setColor] = React.useState(CURSOR_COLORS[0].value);
  const [multiline, setMultiline] = React.useState(false);

  return (
    <div className="flex flex-col gap-8 rounded-2xl border border-border bg-muted/30 p-6">
      <TextCursorTypingInput
        key={`${multiline}-${inputVariant}`}
        charAnimation={charAnim}
        cursorVariant={cursorVariant}
        inputVariant={inputVariant}
        color={color}
        multiline={multiline}
        className="w-full"
        fieldClassName={multiline ? "min-h-[100px]" : ""}
        placeholder={
          multiline ? "Type multiple lines…" : "Type something to try it out…"
        }
      />

      <div className="grid grid-cols-1 gap-6 sm:grid-cols-2">
        <div className="flex flex-col gap-2">
          <span className="text-[11px] font-mono text-muted-foreground/50">
            charAnimation
          </span>
          <div className="flex flex-wrap gap-2">
            {CHAR_ANIMS.map((a) => (
              <Chip
                key={a}
                active={charAnim === a}
                onClick={() => setCharAnim(a)}
              >
                {a}
              </Chip>
            ))}
          </div>
        </div>

        <div className="flex flex-col gap-2">
          <span className="text-[11px] font-mono text-muted-foreground/50">
            cursorVariant
          </span>
          <div className="flex flex-wrap gap-2">
            {CURSOR_VARIANTS.map((v) => (
              <Chip
                key={v}
                active={cursorVariant === v}
                onClick={() => setCursorVariant(v)}
              >
                {v}
              </Chip>
            ))}
          </div>
        </div>

        <div className="flex flex-col gap-2">
          <span className="text-[11px] font-mono text-muted-foreground/50">
            inputVariant
          </span>
          <div className="flex flex-wrap gap-2">
            {INPUT_VARIANTS.map((v) => (
              <Chip
                key={v}
                active={inputVariant === v}
                onClick={() => setInputVariant(v)}
              >
                {v}
              </Chip>
            ))}
          </div>
        </div>

        <div className="flex flex-col gap-2">
          <span className="text-[11px] font-mono text-muted-foreground/50">
            color
          </span>
          <div className="flex flex-wrap gap-2">
            {CURSOR_COLORS.map((c) => (
              <button
                key={c.value}
                onClick={() => setColor(c.value)}
                className={`flex items-center gap-2 px-3 py-1.5 rounded-lg text-xs font-mono transition-all border ${
                  color === c.value
                    ? "border-foreground/20 bg-foreground text-background"
                    : "border-border bg-muted text-muted-foreground hover:text-foreground"
                }`}
              >
                <span
                  className="inline-block h-2.5 w-2.5 rounded-full"
                  style={{ backgroundColor: c.value }}
                />
                {c.label}
              </button>
            ))}
          </div>
        </div>

        <div className="flex flex-col gap-2">
          <span className="text-[11px] font-mono text-muted-foreground/50">
            multiline
          </span>
          <Chip active={multiline} onClick={() => setMultiline((v) => !v)}>
            {multiline ? "textarea" : "input"}
          </Chip>
        </div>
      </div>
    </div>
  );
}

// ---------------------------------------------------------------------------
// Demo root
// ---------------------------------------------------------------------------

export default function AnimateTextInputTypingDemo() {
  return (
    <div className="mx-auto flex max-w-2xl flex-col gap-16 px-6 py-12">
      {/* Playground */}
      <Section
        title="Playground"
        description="Try every combination — each control updates the preview instantly."
      >
        <Playground />
      </Section>

      <div className="h-px bg-border" />

      {/* Character animations */}
      <Section
        title="Character animations"
        description="Every keypress enters with a different motion. Delete and retype to compare."
      >
        <div className="flex flex-col gap-4">
          {CHAR_ANIMS.map((anim) => (
            <Row key={anim} label={`charAnimation=\"${anim}\"`}>
              <TextCursorTypingInput
                charAnimation={anim}
                inputVariant="default"
                color="hsl(220, 100%, 65%)"
                className="w-full"
                placeholder={`Type here — ${anim} animation`}
              />
            </Row>
          ))}
        </div>
      </Section>

      <div className="h-px bg-border" />

      {/* Cursor variants */}
      <Section
        title="Cursor variants"
        description="The cursor shape morphs smoothly between caret and selection."
      >
        <div className="flex flex-col gap-4">
          {(
            [
              { v: "line" as CursorVariant, color: "hsl(220, 100%, 65%)" },
              { v: "block" as CursorVariant, color: "hsl(150, 80%, 50%)" },
              { v: "underline" as CursorVariant, color: "hsl(270, 90%, 65%)" },
              { v: "glow" as CursorVariant, color: "hsl(30, 100%, 60%)" },
            ] as const
          ).map(({ v, color }) => (
            <Row key={v} label={`cursorVariant=\"${v}\"`}>
              <TextCursorTypingInput
                cursorVariant={v}
                inputVariant="default"
                color={color}
                className="w-full"
                placeholder={`Click and type — ${v} cursor`}
              />
            </Row>
          ))}
        </div>
      </Section>

      <div className="h-px bg-border" />

      {/* Input variants */}
      <Section
        title="Input variants"
        description="Pre-built visual styles, each fully composable with fieldClassName."
      >
        <div className="flex flex-col gap-4">
          {INPUT_VARIANTS.map((variant) => (
            <Row key={variant} label={`inputVariant=\"${variant}\"`}>
              <TextCursorTypingInput
                inputVariant={variant}
                color={
                  variant === "terminal"
                    ? "hsl(150, 80%, 50%)"
                    : "hsl(220, 100%, 65%)"
                }
                charAnimation={variant === "terminal" ? "typewriter" : "spring"}
                className="w-full"
                placeholder={
                  variant === "terminal" ? "$ _" : `${variant} — click to type`
                }
              />
            </Row>
          ))}
        </div>
      </Section>

      <div className="h-px bg-border" />

      {/* Multiline */}
      <Section
        title="Multiline"
        description="Pass multiline to render a textarea. Selection spans multiple lines correctly."
      >
        <div className="flex flex-col gap-4">
          <Row label='multiline charAnimation="wave"'>
            <TextCursorTypingInput
              multiline
              charAnimation="wave"
              inputVariant="default"
              color="hsl(270, 90%, 65%)"
              className="w-full"
              fieldClassName="min-h-[120px]"
              defaultValue={
                "Wave animation on every character.\nSelect across lines to see the cursor morph."
              }
            />
          </Row>
          <Row label='multiline inputVariant="terminal"'>
            <TextCursorTypingInput
              multiline
              charAnimation="typewriter"
              inputVariant="terminal"
              color="hsl(150, 80%, 50%)"
              className="w-full"
              fieldClassName="min-h-[100px]"
              placeholder="$ _"
            />
          </Row>
        </div>
      </Section>

      <div className="h-px bg-border" />

      {/* Controlled */}
      <Section
        title="Controlled value"
        description="Use value + onChange for controlled mode. The reconciler preserves char IDs across external updates."
      >
        <ControlledExample />
      </Section>

      <div className="h-px bg-border" />

      {/* Blink speed */}
      <Section
        title="Blink speed"
        description="blinkSpeed controls the caret interval in ms."
      >
        <div className="flex flex-col gap-4">
          {[200, 530, 1200].map((ms) => (
            <Row key={ms} label={`blinkSpeed={${ms}}`}>
              <TextCursorTypingInput
                inputVariant="default"
                color="hsl(220, 100%, 65%)"
                blinkSpeed={ms}
                className="w-full"
                placeholder={`Blink every ${ms}ms`}
              />
            </Row>
          ))}
        </div>
      </Section>
    </div>
  );
}