import { interpolate } from 'remotion';
import { C } from '../lib/colors';
import { springIn, softSpring, clampLerp } from '../lib/easings';

// Phase 2 (frames 159–261 global → localFrame 0..102): build log streams in
// line-by-line, then a server card emerges. Two pills slot into the card:
//   • `code` arrives from the left (the LLM side)
//   • `🔒 NOTION_API_KEY` arrives from the right (the vault side)
// This visualizes the architectural moment: code and credentials are
// injected at runtime from separate paths.
//
// Then a subtle caption appears below the card:
//   "your isolated container · only you can reach it"
//
// Log lines stagger ~10 frames apart starting at localFrame 4.
// Server card emerges at localFrame ~58.
// Slot pills fly in at localFrame ~78.

const LOG_LINES = [
  { label: 'Generating spec',  detail: '2 tools detected' },
  { label: 'Static checks',    detail: 'passed' },
  { label: 'Building image',   detail: '17.2s' },
  { label: 'Deploying',        detail: 'live' },
];

const LINE_STAGGER = 18;
const LINE_START = 8;
const CARD_START = 110;
const SLOTS_START = 140;
const CAPTION_START = 160;
const SCENE_LEN = 216;
// Countdown displays "< NN s" in the corner while build is running.
// We tick from 58 → 12 between frames 8 → CARD_START.
const COUNTDOWN_START_VAL = 58;
const COUNTDOWN_END_VAL = 12;

export function BuildScene({ localFrame, fps }: { localFrame: number; fps: number }) {
  const panelIn = springIn(localFrame, fps, 0);
  const panelOpacity = clampLerp(localFrame, 0, 12);

  // Card emerges late in phase.
  const cardIn = softSpring(localFrame, fps, CARD_START, 24);
  // Once the card is up, the log panel slides up to make room.
  const panelShift = interpolate(cardIn, [0, 1], [0, -160]);

  // Slot pills fly in after card is settled.
  const codeSlotIn = softSpring(localFrame, fps, SLOTS_START, 18);
  const secretSlotIn = softSpring(localFrame, fps, SLOTS_START + 4, 18);

  // Caption appears last.
  const captionIn = clampLerp(localFrame, CAPTION_START, CAPTION_START + 10);

  // Countdown: ticks from 58 → 12 as the log lines stream.
  const countT = clampLerp(localFrame, 8, CARD_START);
  const countVal = Math.round(
    interpolate(countT, [0, 1], [COUNTDOWN_START_VAL, COUNTDOWN_END_VAL]),
  );
  const countShown = localFrame >= 4 && localFrame <= CARD_START + 24;

  return (
    <div
      style={{
        position: 'absolute',
        inset: 0,
        display: 'flex',
        flexDirection: 'column',
        alignItems: 'center',
        justifyContent: 'center',
      }}
    >
      {/* Build log panel */}
      <div
        style={{
          width: 720,
          backgroundColor: C.bgElevated,
          border: `1px solid ${C.border}`,
          borderRadius: 14,
          padding: '24px 28px',
          boxShadow: '0 20px 60px rgba(0,0,0,0.5)',
          opacity: panelOpacity,
          transform: `translateY(${interpolate(panelIn, [0, 1], [20, 0]) + panelShift}px) scale(${interpolate(panelIn, [0, 1], [0.96, 1])})`,
          display: 'flex',
          flexDirection: 'column',
          gap: 14,
        }}
      >
        {/* Panel header — tiny status row */}
        <div
          style={{
            display: 'flex',
            alignItems: 'center',
            justifyContent: 'space-between',
            paddingBottom: 12,
            borderBottom: `1px solid ${C.border}`,
            fontFamily: 'ui-monospace, SF Mono, Menlo, monospace',
            fontSize: 14,
            color: C.fgSubtle,
            letterSpacing: 1,
            textTransform: 'uppercase',
          }}
        >
          <span>build · notion-search</span>
          <span style={{ color: C.fgMuted, display: 'flex', alignItems: 'center', gap: 14 }}>
            {countShown && (
              <span style={{ color: C.accent, fontVariantNumeric: 'tabular-nums' }}>
                {'< '}{countVal}{' s'}
              </span>
            )}
            <span>● running</span>
          </span>
        </div>

        {LOG_LINES.map((line, i) => (
          <LogLine
            key={i}
            label={line.label}
            detail={line.detail}
            localFrame={localFrame}
            startFrame={LINE_START + i * LINE_STAGGER}
            fps={fps}
          />
        ))}
      </div>

      {/* Server card (emerges in second half) */}
      {cardIn > 0.01 && (
        <ServerCard
          progress={cardIn}
          localFrame={localFrame}
          codeSlotIn={codeSlotIn}
          secretSlotIn={secretSlotIn}
        />
      )}

      {/* Isolated container caption */}
      {captionIn > 0.01 && (
        <div
          style={{
            position: 'absolute',
            left: 0,
            right: 0,
            bottom: 180,
            textAlign: 'center',
            fontFamily: 'ui-monospace, SF Mono, Menlo, monospace',
            fontSize: 13,
            letterSpacing: 3,
            textTransform: 'uppercase',
            color: C.fgSubtle,
            opacity: captionIn,
            transform: `translateY(${interpolate(captionIn, [0, 1], [6, 0])}px)`,
          }}
        >
          your isolated container · only you can reach it
        </div>
      )}
    </div>
  );
}

function LogLine({
  label,
  detail,
  localFrame,
  startFrame,
  fps,
}: {
  label: string;
  detail: string;
  localFrame: number;
  startFrame: number;
  fps: number;
}) {
  const spring = springIn(localFrame, fps, startFrame);
  const opacity = clampLerp(localFrame, startFrame, startFrame + 10);
  const x = interpolate(spring, [0, 1], [-30, 0]);
  // Check fills in slightly after the line slides in.
  const checkFill = clampLerp(localFrame, startFrame + 6, startFrame + 14);

  return (
    <div
      style={{
        display: 'flex',
        alignItems: 'center',
        gap: 14,
        opacity,
        transform: `translateX(${x}px)`,
        fontFamily: 'ui-monospace, SF Mono, Menlo, monospace',
        fontSize: 18,
      }}
    >
      {/* Checkmark circle */}
      <div
        style={{
          width: 22,
          height: 22,
          borderRadius: 11,
          backgroundColor: `rgba(34, 197, 94, ${checkFill * 0.18})`,
          border: `1.5px solid ${C.success}`,
          display: 'flex',
          alignItems: 'center',
          justifyContent: 'center',
          flexShrink: 0,
        }}
      >
        <svg width="12" height="12" viewBox="0 0 12 12">
          <path
            d="M 2.5 6.5 L 5 9 L 9.5 3.5"
            fill="none"
            stroke={C.success}
            strokeWidth={2}
            strokeLinecap="round"
            strokeLinejoin="round"
            strokeDasharray={12}
            strokeDashoffset={(1 - checkFill) * 12}
          />
        </svg>
      </div>

      <span style={{ color: C.fg, minWidth: 220 }}>{label}</span>
      <span style={{ color: C.fgMuted, flex: 1 }}>{detail}</span>
    </div>
  );
}

function ServerCard({
  progress,
  localFrame,
  codeSlotIn,
  secretSlotIn,
}: {
  progress: number;
  localFrame: number;
  codeSlotIn: number;
  secretSlotIn: number;
}) {
  const scale = interpolate(progress, [0, 1], [0.85, 1]);
  const y = interpolate(progress, [0, 1], [40, 180]);
  // Live dot pulses once the slots have arrived.
  const liveOn = secretSlotIn > 0.6;
  const pulsePhase = (localFrame - (SLOTS_START + 18)) / 30;
  const livePulse = liveOn
    ? 0.6 + 0.4 * Math.sin(pulsePhase * Math.PI * 2)
    : 0;

  return (
    <div
      style={{
        position: 'absolute',
        left: '50%',
        top: '50%',
        transform: `translate(-50%, calc(-50% + ${y}px)) scale(${scale})`,
        opacity: progress,
      }}
    >
      <div
        style={{
          width: 540,
          backgroundColor: C.bgElevated,
          border: `1.5px solid ${C.accent}`,
          borderRadius: 16,
          padding: '24px 28px',
          boxShadow: `0 0 0 5px ${C.accentGlow}, 0 24px 70px rgba(0,0,0,0.6)`,
          position: 'relative',
        }}
      >
        {/* Header row: title + live dot */}
        <div
          style={{
            display: 'flex',
            alignItems: 'center',
            justifyContent: 'space-between',
            marginBottom: 18,
          }}
        >
          <div
            style={{
              fontFamily: 'ui-monospace, SF Mono, Menlo, monospace',
              fontSize: 20,
              color: C.fg,
              letterSpacing: 0.2,
            }}
          >
            notion-search
          </div>
          <div
            style={{
              display: 'flex',
              alignItems: 'center',
              gap: 8,
              fontFamily: 'ui-monospace, SF Mono, Menlo, monospace',
              fontSize: 12,
              color: liveOn ? C.success : C.fgSubtle,
              letterSpacing: 1.5,
              textTransform: 'uppercase',
              opacity: 0.4 + 0.6 * Math.min(1, secretSlotIn),
            }}
          >
            <div
              style={{
                width: 8,
                height: 8,
                borderRadius: 4,
                backgroundColor: liveOn ? C.success : C.fgSubtle,
                boxShadow: liveOn ? `0 0 ${10 * livePulse}px ${C.success}` : 'none',
                opacity: liveOn ? 0.5 + 0.5 * livePulse : 0.5,
              }}
            />
            {liveOn ? 'live' : 'starting'}
          </div>
        </div>

        {/* Slot pills row */}
        <div
          style={{
            display: 'flex',
            gap: 12,
            marginBottom: 18,
            position: 'relative',
            minHeight: 38,
          }}
        >
          {/* code slot — arrives from the left */}
          <SlotPill
            label="code"
            kind="code"
            in={codeSlotIn}
            fromX={-200}
          />
          {/* secret slot — arrives from the right */}
          <SlotPill
            label="NOTION_API_KEY"
            kind="secret"
            in={secretSlotIn}
            fromX={200}
          />
        </div>

        {/* Tool rows */}
        <ToolRow name="search_pages" desc="full-text query" />
        <div style={{ height: 8 }} />
        <ToolRow name="get_page_content" desc="fetch by id" />
      </div>
    </div>
  );
}

function SlotPill({
  label,
  kind,
  in: progress,
  fromX,
}: {
  label: string;
  kind: 'code' | 'secret';
  in: number;
  fromX: number;
}) {
  const x = interpolate(progress, [0, 1], [fromX, 0]);
  const opacity = clampLerp(progress, 0.05, 0.6);
  const isSecret = kind === 'secret';

  return (
    <div
      style={{
        display: 'flex',
        alignItems: 'center',
        gap: 8,
        padding: '8px 14px',
        backgroundColor: isSecret ? 'rgba(99,102,241,0.10)' : C.bgSubtle,
        border: `1px solid ${isSecret ? C.accentDim : C.borderStrong}`,
        borderRadius: 999,
        fontFamily: 'ui-monospace, SF Mono, Menlo, monospace',
        fontSize: 13,
        color: isSecret ? C.accent : C.fg,
        letterSpacing: 0.5,
        opacity,
        transform: `translateX(${x}px)`,
      }}
    >
      {isSecret ? (
        <MiniLockIcon />
      ) : (
        <span
          style={{
            display: 'inline-flex',
            width: 14,
            height: 14,
            alignItems: 'center',
            justifyContent: 'center',
            color: C.fgMuted,
            fontSize: 13,
          }}
        >
          {'<>'}
        </span>
      )}
      <span>{label}</span>
    </div>
  );
}

function MiniLockIcon() {
  return (
    <svg width="13" height="13" viewBox="0 0 16 16" fill="none">
      <path d="M 5 8 L 5 6 A 3 3 0 0 1 11 6 L 11 8" stroke={C.accent} strokeWidth={1.4} fill="none" />
      <rect x="3.5" y="7.5" width="9" height="7" rx="1.5" fill="rgba(99,102,241,0.20)" stroke={C.accent} strokeWidth={1.4} />
      <circle cx="8" cy="11" r="1" fill={C.accent} />
    </svg>
  );
}

function ToolRow({ name, desc }: { name: string; desc: string }) {
  return (
    <div
      style={{
        display: 'flex',
        alignItems: 'center',
        gap: 12,
        padding: '10px 14px',
        backgroundColor: C.bgSubtle,
        border: `1px solid ${C.border}`,
        borderRadius: 10,
        fontFamily: 'ui-monospace, SF Mono, Menlo, monospace',
      }}
    >
      <div style={{ width: 6, height: 6, borderRadius: 3, backgroundColor: C.accent }} />
      <span style={{ color: C.fg, fontSize: 16, minWidth: 200 }}>{name}</span>
      <span style={{ color: C.fgSubtle, fontSize: 14, flex: 1 }}>{desc}</span>
    </div>
  );
}
