<template>
  <Transition name="boot-fade">
    <div v-if="visible" class="boot-screen" @click="handleClick">
      <!-- Particle starfield -->
      <canvas ref="canvasRef" class="boot-stars" />

      <!-- Two-column layout: terminal left, orb right -->
      <div class="boot-layout" :class="{ 'boot-layout-centered': bootDone }">
        <!-- Left: Terminal log (fades out when done) -->
        <Transition name="terminal-fade">
          <div v-if="!bootDone" class="boot-left">
            <div class="boot-terminal" ref="terminalRef">
              <p v-for="(line, i) in logLines" :key="i" class="boot-log-line" :class="line.type">
                <span class="boot-log-ts">{{ line.prefix }}</span>
                <span>{{ line.text }}</span>
              </p>
              <span class="boot-cursor">_</span>
            </div>
            <div class="boot-progress-wrap">
              <svg class="boot-arc" viewBox="0 0 200 12" preserveAspectRatio="none">
                <rect x="0" y="4" width="200" height="4" rx="2" fill="rgba(255,255,255,0.06)" />
                <rect x="0" y="4" :width="progress * 2" height="4" rx="2" fill="url(#boot-grad)" />
                <defs>
                  <linearGradient id="boot-grad" x1="0" y1="0" x2="200" y2="0" gradientUnits="userSpaceOnUse">
                    <stop offset="0" stop-color="#fb923c" />
                    <stop offset="1" stop-color="#f59e0b" />
                  </linearGradient>
                </defs>
              </svg>
              <span class="boot-pct">{{ Math.round(progress) }}%</span>
            </div>
          </div>
        </Transition>

        <!-- Right (or center when done): The orb / screensaver -->
        <div class="boot-right">
          <div class="boot-orb" :class="{ 'boot-orb-screensaver': bootDone }">
            <!-- Viz ring segments -->
            <div class="boot-viz-ring">
              <div
                v-for="(_, i) in 48"
                :key="i"
                class="boot-viz-seg"
                :style="{ '--si': i, '--sd': `${(i / 48) * 360}deg` }"
                :class="{ 'boot-seg-lit': i < litBars }"
              />
            </div>

            <!-- Center: screensaver-style bordered frame with pixel icon / logo -->
            <div class="boot-center-icon">
              <div class="logo-gradient-border boot-icon-frame">
                <div class="boot-icon-inner">
                  <Transition name="icon-morph" mode="out-in">
                    <div v-if="!bootDone" :key="currentIcon" class="boot-pixel-wrap" :class="{ 'boot-glitch': glitching }">
                      <div v-html="icons[currentIcon]" />
                    </div>
                    <div v-else key="logo" class="boot-logo-inner-logo">
                      <AnimatedLogo size="xl" no-border fit />
                    </div>
                  </Transition>
                </div>
              </div>
            </div>
          </div>

        </div>
      </div>
    </div>
  </Transition>
</template>

<script setup lang="ts">
import { ref, onMounted, onBeforeUnmount, nextTick, watch } from 'vue'
import AnimatedLogo from '@/components/AnimatedLogo.vue'

const props = defineProps<{ visible: boolean }>()
const emit = defineEmits<{ ready: [] }>()

const canvasRef = ref<HTMLCanvasElement | null>(null)
const terminalRef = ref<HTMLElement | null>(null)

const bootDone = ref(false)
const currentIcon = ref(0)
const progress = ref(0)
const litBars = ref(0)
const glitching = ref(false)

// 16x16 pixel art icons
const icons = [
  // Big smiley — warm and friendly
  `<svg viewBox="0 0 16 16" class="boot-svg">
    <rect x="4" y="5" width="2" height="3" fill="white"/>
    <rect x="10" y="5" width="2" height="3" fill="white"/>
    <rect x="4" y="5" width="2" height="1" fill="rgba(255,255,255,0.5)"/>
    <rect x="10" y="5" width="2" height="1" fill="rgba(255,255,255,0.5)"/>
    <rect x="3" y="10" width="2" height="1" fill="white"/>
    <rect x="11" y="10" width="2" height="1" fill="white"/>
    <rect x="5" y="11" width="6" height="1" fill="white"/>
  </svg>`,
  // Bitcoin
  `<svg viewBox="0 0 16 16" class="boot-svg">
    <rect x="5" y="1" width="2" height="2" fill="#f7931a"/><rect x="9" y="1" width="2" height="2" fill="#f7931a"/>
    <rect x="4" y="3" width="2" height="10" fill="#f7931a"/><rect x="6" y="3" width="4" height="2" fill="#f7931a"/>
    <rect x="10" y="4" width="2" height="3" fill="#f7931a"/><rect x="6" y="7" width="4" height="2" fill="#f7931a"/>
    <rect x="10" y="8" width="2" height="4" fill="#f7931a"/><rect x="6" y="11" width="4" height="2" fill="#f7931a"/>
    <rect x="5" y="13" width="2" height="2" fill="#f7931a"/><rect x="9" y="13" width="2" height="2" fill="#f7931a"/>
  </svg>`,
  // Lightning
  `<svg viewBox="0 0 16 16" class="boot-svg">
    <rect x="8" y="0" width="3" height="3" fill="#fbbf24"/><rect x="6" y="3" width="3" height="3" fill="#fbbf24"/>
    <rect x="4" y="6" width="8" height="2" fill="#fbbf24"/><rect x="7" y="8" width="3" height="3" fill="#fbbf24"/>
    <rect x="5" y="11" width="3" height="3" fill="#fbbf24"/><rect x="3" y="14" width="3" height="2" fill="#fbbf24"/>
  </svg>`,
  // Shield
  `<svg viewBox="0 0 16 16" class="boot-svg">
    <rect x="3" y="1" width="10" height="2" fill="#60a5fa"/><rect x="2" y="3" width="2" height="7" fill="#60a5fa"/>
    <rect x="12" y="3" width="2" height="7" fill="#60a5fa"/><rect x="4" y="10" width="2" height="2" fill="#60a5fa"/>
    <rect x="10" y="10" width="2" height="2" fill="#60a5fa"/><rect x="6" y="12" width="4" height="2" fill="#60a5fa"/>
    <rect x="7" y="5" width="2" height="4" fill="white" opacity="0.5"/><rect x="6" y="6" width="4" height="2" fill="white" opacity="0.5"/>
  </svg>`,
  // Key
  `<svg viewBox="0 0 16 16" class="boot-svg">
    <circle cx="5" cy="6" r="3" fill="none" stroke="#4ade80" stroke-width="1.5"/>
    <rect x="7" y="5" width="7" height="2" fill="#4ade80"/>
    <rect x="12" y="7" width="2" height="2" fill="#4ade80"/><rect x="10" y="7" width="2" height="2" fill="#4ade80"/>
  </svg>`,
  // Mesh nodes
  `<svg viewBox="0 0 16 16" class="boot-svg">
    <circle cx="8" cy="8" r="2" fill="white"/>
    <circle cx="3" cy="3" r="1.5" fill="#a78bfa"/><circle cx="13" cy="3" r="1.5" fill="#a78bfa"/>
    <circle cx="3" cy="13" r="1.5" fill="#a78bfa"/><circle cx="13" cy="13" r="1.5" fill="#a78bfa"/>
    <line x1="8" y1="8" x2="3" y2="3" stroke="#a78bfa" stroke-width="0.5" opacity="0.5"/>
    <line x1="8" y1="8" x2="13" y2="3" stroke="#a78bfa" stroke-width="0.5" opacity="0.5"/>
    <line x1="8" y1="8" x2="3" y2="13" stroke="#a78bfa" stroke-width="0.5" opacity="0.5"/>
    <line x1="8" y1="8" x2="13" y2="13" stroke="#a78bfa" stroke-width="0.5" opacity="0.5"/>
  </svg>`,
]

interface LogLine { prefix: string; text: string; type: string }
const logLines = ref<LogLine[]>([])

const bootMessages = [
  { delay: 500, prefix: 'sys', text: 'Archipelago v0.1.0', type: 'info' },
  { delay: 1500, prefix: 'sec', text: 'Loading ed25519 keys...', type: 'info' },
  { delay: 3000, prefix: ' ok', text: 'Cryptographic keys loaded', type: 'success' },
  { delay: 4500, prefix: 'net', text: 'Binding to port 5678', type: 'info' },
  { delay: 5500, prefix: ' ok', text: 'Nginx proxy detected', type: 'success' },
  { delay: 7000, prefix: ' id', text: 'Initializing identity store...', type: 'info' },
  { delay: 8500, prefix: ' ok', text: 'DID resolver online', type: 'success' },
  { delay: 10000, prefix: 'btc', text: 'Connecting to Bitcoin node...', type: 'info' },
  { delay: 12000, prefix: 'lnd', text: 'Lightning daemon syncing', type: 'info' },
  { delay: 14000, prefix: ' ok', text: 'LND chain synced', type: 'success' },
  { delay: 16000, prefix: 'pod', text: 'Scanning containers...', type: 'info' },
  { delay: 17500, prefix: ' ok', text: '12 containers discovered', type: 'success' },
  { delay: 19000, prefix: 'sec', text: 'AppArmor profiles verified', type: 'success' },
  { delay: 20500, prefix: 'dwn', text: 'DWN node connected', type: 'success' },
  { delay: 22000, prefix: 'msh', text: 'Mesh radio initialized', type: 'success' },
  { delay: 23500, prefix: '***', text: 'ALL SYSTEMS OPERATIONAL', type: 'ready' },
]

// Starfield
let animFrame = 0
const stars: { x: number; y: number; z: number }[] = []

function initStars(c: HTMLCanvasElement) {
  for (let i = 0; i < 180; i++) {
    stars.push({ x: (Math.random() - 0.5) * c.width * 3, y: (Math.random() - 0.5) * c.height * 3, z: Math.random() * 1500 + 500 })
  }
}

function drawStars(c: HTMLCanvasElement, ctx: CanvasRenderingContext2D) {
  ctx.fillStyle = '#0a0a0a'
  ctx.fillRect(0, 0, c.width, c.height)
  const speed = 0.6 + (progress.value / 100) * 2.5
  const cx = c.width / 2, cy = c.height / 2
  for (const s of stars) {
    s.z -= speed
    if (s.z <= 0) { s.z = 1500; s.x = (Math.random() - 0.5) * c.width * 3; s.y = (Math.random() - 0.5) * c.height * 3 }
    const sx = (s.x / s.z) * 300 + cx, sy = (s.y / s.z) * 300 + cy
    if (sx < 0 || sx > c.width || sy < 0 || sy > c.height) continue
    const size = Math.max(0.5, (1 - s.z / 1500) * 2)
    const alpha = Math.min(1, (1 - s.z / 1500) * 1.2)
    ctx.beginPath(); ctx.arc(sx, sy, size, 0, Math.PI * 2)
    ctx.fillStyle = `rgba(255,255,255,${alpha * 0.7})`; ctx.fill()
  }
  animFrame = requestAnimationFrame(() => drawStars(c, ctx))
}

function triggerGlitch() { glitching.value = true; setTimeout(() => { glitching.value = false }, 200) }

function handleClick() {
  if (!bootDone.value) return
  // Clear intro flag so App.vue's SplashScreen plays the full intro sequence
  localStorage.removeItem('neode_intro_seen')
  // Also clear onboarding flag so it goes through onboarding after intro
  localStorage.removeItem('neode_onboarding_complete')
  emit('ready')
}

// Health check
async function checkHealth(): Promise<boolean> {
  try {
    const ac = new AbortController()
    const t = setTimeout(() => ac.abort(), 3000)
    const res = await fetch('/rpc/v1', {
      method: 'POST', headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({ jsonrpc: '2.0', id: 1, method: 'server.echo', params: { message: 'boot' } }),
      signal: ac.signal,
    })
    clearTimeout(t)
    return res.status !== 502 && res.status !== 503
  } catch { return false }
}

let iconInterval: ReturnType<typeof setInterval> | null = null
let pollInterval: ReturnType<typeof setInterval> | null = null
let logTimeouts: ReturnType<typeof setTimeout>[] = []

function startPolling() {
  iconInterval = setInterval(() => {
    if (!bootDone.value) { currentIcon.value = (currentIcon.value + 1) % icons.length; triggerGlitch() }
  }, 2500)

  // Feed boot log messages — the visual sequence drives the timeline
  const lastMsgDelay = bootMessages[bootMessages.length - 1]!.delay
  for (const msg of bootMessages) {
    logTimeouts.push(setTimeout(() => {
      logLines.value.push({ prefix: msg.prefix, text: msg.text, type: msg.type })
      if (logLines.value.length > 8) logLines.value.shift()
      const idx = bootMessages.indexOf(msg)
      progress.value = Math.min(95, ((idx + 1) / bootMessages.length) * 100)
      litBars.value = Math.round((progress.value / 100) * 48)
      nextTick(() => { if (terminalRef.value) terminalRef.value.scrollTop = terminalRef.value.scrollHeight })
    }, msg.delay))
  }

  // After the last message, start polling for real server readiness
  // (visual sequence must complete before we transition)
  logTimeouts.push(setTimeout(() => {
    // In dev/mock mode the server may already be ready — check and complete
    const finishBoot = () => {
      stopPolling()
      progress.value = 100
      litBars.value = 48
      setTimeout(() => { bootDone.value = true }, 1200)
    }

    // Check immediately
    checkHealth().then(r => {
      if (r) { finishBoot(); return }
      // Not ready yet — poll until it is
      pollInterval = setInterval(async () => {
        if (await checkHealth()) finishBoot()
      }, 2000)
    })
  }, lastMsgDelay + 1500))

  // Reset mock boot timer on fresh page load
  fetch('/rpc/v1', {
    method: 'POST', headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({ jsonrpc: '2.0', id: 0, method: 'server.echo', params: { message: 'boot-reset' } }),
  }).catch(() => {})
}

function stopPolling() {
  if (iconInterval) { clearInterval(iconInterval); iconInterval = null }
  if (pollInterval) { clearInterval(pollInterval); pollInterval = null }
  for (const t of logTimeouts) clearTimeout(t)
  logTimeouts = []
}

function initCanvas() {
  const c = canvasRef.value
  if (!c) return
  c.width = window.innerWidth; c.height = window.innerHeight
  const ctx = c.getContext('2d')
  if (ctx) { initStars(c); drawStars(c, ctx) }
}

watch(() => props.visible, v => { if (v) { startPolling(); nextTick(initCanvas) } })
onMounted(() => { if (props.visible) { startPolling(); nextTick(initCanvas) } })
onBeforeUnmount(() => { stopPolling(); cancelAnimationFrame(animFrame) })
defineExpose({ startPolling })
</script>

<style scoped>
.boot-screen {
  position: fixed; inset: 0; z-index: 9000;
  display: flex; align-items: center; justify-content: center;
  cursor: default; overflow: hidden;
}
.boot-screen:has(.boot-click-prompt) { cursor: pointer; }
.boot-stars { position: absolute; inset: 0; width: 100%; height: 100%; }

/* Two-column layout */
.boot-layout {
  position: relative; z-index: 1;
  display: flex; align-items: center; gap: 3rem;
  max-width: 900px; width: 90%; padding: 0 1rem;
  transition: justify-content 0.8s ease;
}
.boot-layout-centered { justify-content: center; }

/* Left column: terminal */
.boot-left {
  flex: 1; min-width: 0; max-width: 400px;
}

.boot-terminal {
  max-height: 200px; overflow: hidden;
  font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
  font-size: 11px; line-height: 1.8;
  mask-image: linear-gradient(to bottom, transparent 0%, black 15%, black 100%);
  -webkit-mask-image: linear-gradient(to bottom, transparent 0%, black 15%, black 100%);
}
.boot-log-line { white-space: nowrap; overflow: hidden; animation: log-in 0.3s ease both; }
.boot-log-line.info { color: rgba(255,255,255,0.35); }
.boot-log-line.success { color: #4ade80; }
.boot-log-line.ready { color: #fb923c; font-weight: 600; text-shadow: 0 0 10px rgba(251,146,60,0.5); }
.boot-log-ts { color: rgba(255,255,255,0.15); margin-right: 8px; font-weight: 500; }
.boot-log-line.success .boot-log-ts { color: rgba(74,222,128,0.4); }
.boot-log-line.ready .boot-log-ts { color: rgba(251,146,60,0.6); }
@keyframes log-in { from { opacity:0; transform:translateY(6px); } to { opacity:1; transform:translateY(0); } }

.boot-cursor { color: rgba(251,146,60,0.7); animation: blink 1s step-end infinite; font-family: monospace; font-size: 12px; }
@keyframes blink { 50% { opacity: 0; } }

.boot-progress-wrap { display: flex; align-items: center; gap: 10px; margin-top: 12px; }
.boot-arc { flex: 1; height: 12px; }
.boot-pct { font-family: 'SF Mono', monospace; font-size: 10px; color: rgba(255,255,255,0.25); min-width: 28px; text-align: right; }

/* Right column: orb */
.boot-right {
  flex-shrink: 0; display: flex; flex-direction: column; align-items: center; gap: 1.5rem;
}

.boot-orb {
  position: relative; width: 220px; height: 220px;
  transition: width 0.8s ease, height 0.8s ease;
}
@media (min-width: 640px) { .boot-orb { width: 280px; height: 280px; } }
@media (min-width: 768px) { .boot-orb { width: 320px; height: 320px; } }

.boot-orb-screensaver {
  width: 280px; height: 280px;
}
@media (min-width: 640px) { .boot-orb-screensaver { width: 360px; height: 360px; } }
@media (min-width: 768px) { .boot-orb-screensaver { width: 400px; height: 400px; } }

/* Viz ring */
.boot-viz-ring { position: absolute; inset: 0; --vr: 100px; }
@media (min-width: 640px) { .boot-viz-ring { --vr: 130px; } }
@media (min-width: 768px) { .boot-viz-ring { --vr: 150px; } }
.boot-orb-screensaver .boot-viz-ring { --vr: 130px; }
@media (min-width: 640px) { .boot-orb-screensaver .boot-viz-ring { --vr: 170px; } }
@media (min-width: 768px) { .boot-orb-screensaver .boot-viz-ring { --vr: 190px; } }

.boot-viz-seg {
  position: absolute; left: 50%; top: 50%;
  width: 3px; height: 18px; margin-left: -1.5px; margin-top: -9px;
  border-radius: 1.5px; transform-origin: center center;
  transform: rotate(var(--sd)) translateY(calc(-1 * var(--vr)));
  background: rgba(255,255,255,0.05);
  transition: background 0.4s ease, height 0.4s ease, box-shadow 0.4s ease;
}
.boot-seg-lit {
  background: linear-gradient(to bottom, rgba(251,146,60,0.8), rgba(245,158,11,0.3));
  box-shadow: 0 0 5px rgba(251,146,60,0.2);
  height: 22px; margin-top: -11px;
}
/* When done, all segments pulse like screensaver */
.boot-orb-screensaver .boot-viz-seg {
  background: linear-gradient(to bottom, rgba(255,255,255,0.4), rgba(255,255,255,0.1));
  box-shadow: none; height: 24px; margin-top: -12px;
  animation: seg-pulse 14s ease-in-out infinite;
  animation-delay: calc(var(--si) * 0.02s);
}
@keyframes seg-pulse {
  0%,14.3%,28.6%,42.9%,57.1%,71.4%,92.9%,100% { opacity:0.3; transform: rotate(var(--sd)) translateY(calc(-1 * var(--vr))) scaleY(0.4); }
  7.1%,21.4%,35.7%,50%,64.3% { opacity:0.9; transform: rotate(var(--sd)) translateY(calc(-1 * var(--vr))) scaleY(1); }
  78.6%,85.7% { opacity:1; transform: rotate(var(--sd)) translateY(calc(-1 * var(--vr))) scaleY(1.5); }
}

/* Center icon */
.boot-center-icon {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%,-50%); z-index: 10;
  filter: drop-shadow(0 0 30px rgba(255,255,255,0.1));
}
.boot-icon-frame {
  width: 140px; height: 140px;
  display: flex; align-items: center; justify-content: center; overflow: hidden;
}
@media (min-width: 640px) { .boot-icon-frame { width: 180px; height: 180px; } }
@media (min-width: 768px) { .boot-icon-frame { width: 220px; height: 220px; } }
.boot-orb-screensaver .boot-icon-frame {
  width: 192px; height: 192px;
}
@media (min-width: 640px) { .boot-orb-screensaver .boot-icon-frame { width: 256px; height: 256px; } }
@media (min-width: 768px) { .boot-orb-screensaver .boot-icon-frame { width: 320px; height: 320px; } }

.boot-icon-inner {
  position: absolute; inset: 3px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(0,0,0,0.85); border-radius: inherit;
}

.boot-pixel-wrap { width: 72px; height: 72px; }
@media (min-width: 640px) { .boot-pixel-wrap { width: 90px; height: 90px; } }

.boot-logo-inner-logo { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; }

:deep(.boot-svg) { width: 100%; height: 100%; image-rendering: pixelated; image-rendering: crisp-edges; }

/* Glitch */
.boot-glitch { animation: glitch 0.2s steps(3) both; }
@keyframes glitch {
  0% { transform: translate(0); filter: none; }
  25% { transform: translate(2px,-1px); filter: hue-rotate(90deg); }
  50% { transform: translate(-2px,1px); filter: hue-rotate(-90deg) brightness(1.4); }
  75% { transform: translate(1px,2px); filter: hue-rotate(45deg); }
  100% { transform: translate(0); filter: none; }
}

/* Icon morph */
.icon-morph-enter-active { transition: opacity 0.3s ease, transform 0.3s ease, filter 0.3s ease; }
.icon-morph-leave-active { transition: opacity 0.2s ease, transform 0.2s ease, filter 0.2s ease; }
.icon-morph-enter-from { opacity:0; transform: scale(0.5) rotate(-10deg); filter: blur(4px); }
.icon-morph-leave-to { opacity:0; transform: scale(1.4) rotate(10deg); filter: blur(4px); }

/* Click prompt */
.boot-click-prompt {
  color: rgba(255,255,255,0.4); font-size: 0.8rem; font-weight: 500;
  letter-spacing: 0.1em; text-transform: uppercase;
  animation: prompt-breathe 3s ease-in-out infinite;
}
@keyframes prompt-breathe {
  0%,100% { opacity: 0.3; } 50% { opacity: 0.7; }
}
.prompt-fade-enter-active { transition: opacity 1s ease 0.5s; }
.prompt-fade-enter-from { opacity: 0; }

/* Terminal fade out */
.terminal-fade-leave-active { transition: opacity 0.8s ease, transform 0.8s ease; }
.terminal-fade-leave-to { opacity: 0; transform: translateX(-30px); }

/* Boot screen fade out */
.boot-fade-leave-active { transition: opacity 1.2s ease; }
.boot-fade-leave-to { opacity: 0; }

/* Mobile: stack vertically */
@media (max-width: 767px) {
  .boot-layout { flex-direction: column-reverse; gap: 2rem; }
  .boot-left { max-width: 100%; }
  .boot-orb { width: 200px; height: 200px; }
  .boot-orb-screensaver { width: 260px; height: 260px; }
}
</style>
