'use client'

/**
 * Build Pipeline Wizard
 *
 * Interactive guide for learning about the multi-platform
 * build and deployment process for Breakpilot Drive
 */

import { useState } from 'react'
import Link from 'next/link'
import AdminLayout from '@/components/admin/AdminLayout'

// ========================================
// Types
// ========================================

type WizardStep =
  | 'welcome'
  | 'platforms'
  | 'github-actions'
  | 'webgl-build'
  | 'ios-build'
  | 'android-build'
  | 'deployment'
  | 'version-sync'
  | 'summary'

interface StepInfo {
  id: WizardStep
  title: string
  description: string
}

// ========================================
// Step Configuration
// ========================================

const STEPS: StepInfo[] = [
  { id: 'welcome', title: 'Willkommen', description: 'Build Pipeline Uebersicht' },
  { id: 'platforms', title: 'Plattformen', description: 'WebGL, iOS, Android' },
  { id: 'github-actions', title: 'GitHub Actions', description: 'CI/CD Workflow' },
  { id: 'webgl-build', title: 'WebGL', description: 'Browser Build' },
  { id: 'ios-build', title: 'iOS', description: 'App Store Build' },
  { id: 'android-build', title: 'Android', description: 'Play Store Build' },
  { id: 'deployment', title: 'Deployment', description: 'Store Upload' },
  { id: 'version-sync', title: 'Versioning', description: 'Version Management' },
  { id: 'summary', title: 'Zusammenfassung', description: 'Naechste Schritte' },
]

// ========================================
// Educational Content
// ========================================

const EDUCATION_CONTENT: Record<WizardStep, { title: string; content: string; tips: string[] }> = {
  'welcome': {
    title: 'Multi-Platform Build Pipeline',
    content: `Breakpilot Drive wird fuer drei Plattformen gebaut:

    **WebGL** - Browser-basiert, in Admin Panel eingebettet
    **iOS** - iPhone/iPad via App Store
    **Android** - Smartphones/Tablets via Google Play

    Die Build-Pipeline nutzt **GitHub Actions** mit **game-ci/unity-builder**
    fuer automatisierte, reproduzierbare Builds.`,
    tips: [
      'WebGL ist die primaere Plattform fuer schnelles Testing',
      'Mobile Builds nur bei Tags (Releases)',
      'Alle Builds werden als Artifacts gespeichert'
    ]
  },
  'platforms': {
    title: 'Unterstuetzte Plattformen',
    content: `Jede Plattform hat spezifische Anforderungen:

    **WebGL (HTML5/WASM)**
    - Brotli-Kompression
    - 512MB Memory
    - Kein Threading (Browser-Limitation)

    **iOS (iPhone/iPad)**
    - Min. iOS 14.0
    - ARM64 Architektur
    - App Store Distribution

    **Android**
    - Min. Android 7.0 (API 24)
    - Target: Android 14 (API 34)
    - ARM64, AAB fuer Play Store`,
    tips: [
      'WebGL laeuft in allen modernen Browsern',
      'iOS erfordert Apple Developer Account ($99/Jahr)',
      'Android AAB ist Pflicht fuer Play Store'
    ]
  },
  'github-actions': {
    title: 'GitHub Actions Workflow',
    content: `Der CI/CD Workflow ist in Jobs aufgeteilt:

    **1. version** - Ermittelt Version aus Git Tag
    **2. build-webgl** - Baut Browser-Version
    **3. build-ios** - Baut Xcode Projekt
    **4. build-ios-ipa** - Erstellt signierte IPA
    **5. build-android** - Baut AAB/APK
    **6. deploy-webgl** - Deployed zu CDN
    **7. upload-ios** - Laedt zu App Store Connect
    **8. upload-android** - Laedt zu Google Play

    Trigger:
    - **Tags (v*)**: Alle Plattformen + Upload
    - **Push main**: Nur WebGL
    - **Manual**: Auswahlbar`,
    tips: [
      'Unity License muss als Secret hinterlegt sein',
      'Signing-Zertifikate als Base64 Secrets',
      'Cache beschleunigt Builds erheblich'
    ]
  },
  'webgl-build': {
    title: 'WebGL Build',
    content: `WebGL ist die schnellste Build-Variante:

    **Build-Einstellungen:**
    - Kompression: Brotli (beste Kompression)
    - Memory: 512MB (ausreichend fuer Spiel)
    - Exceptions: Nur explizite (Performance)
    - Linker: WASM (WebAssembly)

    **Output:**
    - index.html
    - Build/*.wasm.br (komprimiert)
    - Build/*.data.br (Assets)
    - Build/*.js (Loader)

    **Deployment:**
    - S3 + CloudFront CDN
    - Cache: 1 Jahr fuer Assets, 1h fuer HTML`,
    tips: [
      'Brotli-Kompression spart ~70% Bandbreite',
      'Erste Ladung ~10-15MB, danach gecached',
      'Server muss Brotli-Headers unterstuetzen'
    ]
  },
  'ios-build': {
    title: 'iOS Build',
    content: `iOS Build erfolgt in zwei Schritten:

    **Schritt 1: Unity Build**
    - Erstellt Xcode Projekt
    - Setzt iOS-spezifische Einstellungen
    - Output: Unity-iPhone.xcodeproj

    **Schritt 2: Xcode Build**
    - Importiert Signing-Zertifikate
    - Archiviert Projekt
    - Exportiert signierte IPA

    **Voraussetzungen:**
    - Apple Developer Account
    - Distribution Certificate (.p12)
    - Provisioning Profile
    - App Store Connect API Key`,
    tips: [
      'Zertifikate alle 1 Jahr erneuern',
      'Provisioning Profile fuer jede App ID',
      'TestFlight fuer Beta-Tests nutzen'
    ]
  },
  'android-build': {
    title: 'Android Build',
    content: `Android Build erzeugt AAB oder APK:

    **AAB (App Bundle)** - Fuer Play Store
    - Google optimiert fuer jedes Geraet
    - Kleinere Downloads
    - Pflicht seit 2021

    **APK** - Fuer direkten Download
    - Debug-Builds fuer Testing
    - Sideloading moeglich

    **Signing:**
    - Keystore (.jks/.keystore)
    - Key Alias und Passwoerter
    - Play App Signing empfohlen

    **Voraussetzungen:**
    - Google Play Console Account ($25 einmalig)
    - Keystore fuer App-Signatur`,
    tips: [
      'Keystore NIEMALS verlieren (keine Veroeffentlichung mehr)',
      'Play App Signing: Google verwaltet Upload-Key',
      'Internal Testing fuer schnelle Tests'
    ]
  },
  'deployment': {
    title: 'Store Deployment',
    content: `Automatisches Deployment zu den Stores:

    **WebGL -> CDN (S3/CloudFront)**
    - Sync zu S3 Bucket
    - CloudFront Invalidation
    - Versionierte URLs

    **iOS -> App Store Connect**
    - Upload via altool
    - API Key Authentifizierung
    - TestFlight Auto-Distribution

    **Android -> Google Play**
    - Upload via r0adkll/upload-google-play
    - Service Account Auth
    - Internal Track zuerst`,
    tips: [
      'WebGL ist sofort live nach Deploy',
      'iOS: Review dauert 1-3 Tage',
      'Android: Review dauert wenige Stunden'
    ]
  },
  'version-sync': {
    title: 'Version Synchronisation',
    content: `Versionen werden zentral verwaltet:

    **version.json** (Runtime)
    - version: Semantische Version
    - build_number: Inkrementell
    - platform: Build-Target
    - commit_hash: Git SHA
    - min_api_version: API Kompatibilitaet

    **VersionManager.cs** (Unity)
    - Laedt version.json zur Laufzeit
    - Prueft API-Kompatibilitaet
    - Zeigt Update-Hinweise

    **Git Tags**
    - v1.0.0 -> Version 1.0.0
    - Trigger fuer Release-Builds`,
    tips: [
      'build_number aus GitHub Run Number',
      'min_api_version fuer erzwungene Updates',
      'Semantic Versioning: MAJOR.MINOR.PATCH'
    ]
  },
  'summary': {
    title: 'Zusammenfassung & Naechste Schritte',
    content: `Du hast gelernt:

    ✓ Build-Targets: WebGL, iOS, Android
    ✓ GitHub Actions Workflow
    ✓ Platform-spezifische Einstellungen
    ✓ Store Deployment Prozess
    ✓ Version Management

    **Naechste Schritte:**
    1. GitHub Secrets konfigurieren
    2. Apple/Google Developer Accounts einrichten
    3. Keystore und Zertifikate erstellen
    4. Ersten Release-Tag erstellen`,
    tips: [
      'Dokumentation in BreakpilotDrive/ci/',
      'BuildScript.cs fuer lokale Builds',
      'version.json wird automatisch aktualisiert'
    ]
  },
}

// ========================================
// Components
// ========================================

function WizardStepper({ steps, currentStep, onStepClick }: {
  steps: StepInfo[]
  currentStep: WizardStep
  onStepClick: (step: WizardStep) => void
}) {
  const currentIndex = steps.findIndex(s => s.id === currentStep)

  return (
    <div className="flex items-center gap-1 overflow-x-auto pb-2">
      {steps.map((step, index) => {
        const isActive = step.id === currentStep
        const isCompleted = index < currentIndex
        const isClickable = index <= currentIndex + 1

        return (
          <button
            key={step.id}
            onClick={() => isClickable && onStepClick(step.id)}
            disabled={!isClickable}
            className={`flex items-center gap-2 px-3 py-2 rounded-lg text-sm font-medium transition-all whitespace-nowrap ${
              isActive
                ? 'bg-green-600 text-white'
                : isCompleted
                ? 'bg-green-100 text-green-700 hover:bg-green-200'
                : isClickable
                ? 'bg-gray-100 text-gray-600 hover:bg-gray-200'
                : 'bg-gray-50 text-gray-400 cursor-not-allowed'
            }`}
          >
            <span className={`w-6 h-6 rounded-full flex items-center justify-center text-xs ${
              isActive ? 'bg-white/20' : isCompleted ? 'bg-green-200' : 'bg-gray-200'
            }`}>
              {isCompleted ? '✓' : index + 1}
            </span>
            <span className="hidden md:inline">{step.title}</span>
          </button>
        )
      })}
    </div>
  )
}

function EducationCard({ title, content, tips }: { title: string; content: string; tips: string[] }) {
  return (
    <div className="bg-white rounded-xl shadow-lg p-6">
      <h2 className="text-xl font-bold text-gray-900 mb-4">{title}</h2>
      <div className="prose prose-sm max-w-none mb-6">
        {content.split('\n\n').map((paragraph, i) => (
          <p key={i} className="text-gray-700 whitespace-pre-line mb-3">
            {paragraph.split('**').map((part, j) =>
              j % 2 === 1 ? <strong key={j}>{part}</strong> : part
            )}
          </p>
        ))}
      </div>
      <div className="bg-green-50 rounded-lg p-4">
        <h3 className="text-sm font-semibold text-green-800 mb-2">Tipps:</h3>
        <ul className="space-y-1">
          {tips.map((tip, i) => (
            <li key={i} className="flex items-start gap-2 text-sm text-green-700">
              <span className="text-green-500 mt-0.5">•</span>
              {tip}
            </li>
          ))}
        </ul>
      </div>
    </div>
  )
}

function PlatformCards() {
  const platforms = [
    {
      name: 'WebGL',
      icon: '🌐',
      status: 'Aktiv',
      size: '~15 MB',
      features: ['Browser-basiert', 'Sofort spielbar', 'Admin Panel Embed']
    },
    {
      name: 'iOS',
      icon: '📱',
      status: 'Bereit',
      size: '~80 MB',
      features: ['iPhone & iPad', 'App Store', 'Push Notifications']
    },
    {
      name: 'Android',
      icon: '🤖',
      status: 'Bereit',
      size: '~60 MB',
      features: ['Play Store', 'AAB Format', 'Wide Device Support']
    },
  ]

  return (
    <div className="grid grid-cols-1 md:grid-cols-3 gap-4 mt-6">
      {platforms.map((platform) => (
        <div key={platform.name} className="bg-gradient-to-br from-green-50 to-emerald-50 rounded-lg p-4 border border-green-100">
          <div className="flex items-center gap-3 mb-3">
            <span className="text-3xl">{platform.icon}</span>
            <div>
              <h4 className="font-bold text-gray-900">{platform.name}</h4>
              <p className="text-sm text-gray-500">{platform.size}</p>
            </div>
            <span className="ml-auto px-2 py-1 bg-green-100 text-green-700 text-xs rounded-full">
              {platform.status}
            </span>
          </div>
          <ul className="space-y-1">
            {platform.features.map((feature, i) => (
              <li key={i} className="text-sm text-gray-600 flex items-center gap-2">
                <span className="text-green-500">✓</span> {feature}
              </li>
            ))}
          </ul>
        </div>
      ))}
    </div>
  )
}

function WorkflowDiagram() {
  const jobs = [
    { name: 'version', icon: '🏷️', runner: 'ubuntu' },
    { name: 'build-webgl', icon: '🌐', runner: 'ubuntu' },
    { name: 'build-ios', icon: '📱', runner: 'macos' },
    { name: 'build-android', icon: '🤖', runner: 'ubuntu' },
    { name: 'deploy', icon: '🚀', runner: 'ubuntu' },
  ]

  return (
    <div className="mt-6 bg-gray-900 rounded-lg p-6">
      <h3 className="text-white font-semibold mb-4">Workflow Jobs</h3>
      <div className="flex flex-wrap gap-4">
        {jobs.map((job, i) => (
          <div key={job.name} className="flex items-center gap-2">
            <div className="bg-gray-800 rounded-lg p-3 text-center min-w-[100px]">
              <span className="text-2xl">{job.icon}</span>
              <p className="text-white text-sm font-medium mt-1">{job.name}</p>
              <p className="text-gray-500 text-xs">{job.runner}</p>
            </div>
            {i < jobs.length - 1 && (
              <span className="text-gray-600 text-xl">→</span>
            )}
          </div>
        ))}
      </div>
    </div>
  )
}

function SecretsChecklist() {
  const secrets = [
    { name: 'UNITY_LICENSE', desc: 'Unity Personal/Pro License', required: true },
    { name: 'UNITY_EMAIL', desc: 'Unity Account Email', required: true },
    { name: 'UNITY_PASSWORD', desc: 'Unity Account Password', required: true },
    { name: 'IOS_BUILD_CERTIFICATE_BASE64', desc: 'Apple Distribution Certificate', required: false },
    { name: 'IOS_PROVISION_PROFILE_BASE64', desc: 'iOS Provisioning Profile', required: false },
    { name: 'ANDROID_KEYSTORE_BASE64', desc: 'Android Signing Keystore', required: false },
    { name: 'AWS_ACCESS_KEY_ID', desc: 'AWS fuer S3/CloudFront', required: false },
  ]

  return (
    <div className="mt-6 bg-white rounded-lg border border-gray-200 overflow-hidden">
      <div className="px-4 py-3 bg-gray-50 border-b">
        <h3 className="font-semibold text-gray-800">GitHub Secrets Checkliste</h3>
      </div>
      <ul className="divide-y">
        {secrets.map((secret) => (
          <li key={secret.name} className="px-4 py-3 flex items-center justify-between">
            <div>
              <code className="text-sm bg-gray-100 px-2 py-1 rounded">{secret.name}</code>
              <p className="text-sm text-gray-500 mt-1">{secret.desc}</p>
            </div>
            <span className={`text-xs px-2 py-1 rounded ${
              secret.required ? 'bg-red-100 text-red-700' : 'bg-gray-100 text-gray-600'
            }`}>
              {secret.required ? 'Pflicht' : 'Optional'}
            </span>
          </li>
        ))}
      </ul>
    </div>
  )
}

// ========================================
// Main Component
// ========================================

export default function BuildPipelineWizardPage() {
  const [currentStep, setCurrentStep] = useState<WizardStep>('welcome')
  const currentStepIndex = STEPS.findIndex(s => s.id === currentStep)
  const education = EDUCATION_CONTENT[currentStep]

  const goToNext = () => {
    const nextIndex = currentStepIndex + 1
    if (nextIndex < STEPS.length) {
      setCurrentStep(STEPS[nextIndex].id)
    }
  }

  const goToPrevious = () => {
    const prevIndex = currentStepIndex - 1
    if (prevIndex >= 0) {
      setCurrentStep(STEPS[prevIndex].id)
    }
  }

  return (
    <AdminLayout
      title="Build Pipeline Wizard"
      description="Lerne die Multi-Platform Build Pipeline kennen"
    >
      {/* Back Link */}
      <div className="mb-6">
        <Link
          href="/admin/game"
          className="inline-flex items-center gap-2 text-gray-600 hover:text-gray-900"
        >
          <svg className="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
            <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M15 19l-7-7 7-7" />
          </svg>
          Zurueck zum Game Dashboard
        </Link>
      </div>

      {/* Stepper */}
      <div className="mb-8">
        <WizardStepper
          steps={STEPS}
          currentStep={currentStep}
          onStepClick={setCurrentStep}
        />
      </div>

      {/* Content */}
      <div className="grid grid-cols-1 lg:grid-cols-3 gap-6">
        {/* Main Content */}
        <div className="lg:col-span-2">
          <EducationCard
            title={education.title}
            content={education.content}
            tips={education.tips}
          />

          {/* Step-specific content */}
          {currentStep === 'platforms' && <PlatformCards />}
          {currentStep === 'github-actions' && <WorkflowDiagram />}
          {currentStep === 'deployment' && <SecretsChecklist />}

          {/* Navigation */}
          <div className="flex justify-between mt-8">
            <button
              onClick={goToPrevious}
              disabled={currentStepIndex === 0}
              className="px-6 py-3 rounded-lg font-medium bg-gray-100 text-gray-700 hover:bg-gray-200 disabled:opacity-50 disabled:cursor-not-allowed"
            >
              Zurueck
            </button>
            <button
              onClick={goToNext}
              disabled={currentStepIndex === STEPS.length - 1}
              className="px-6 py-3 rounded-lg font-medium bg-green-600 text-white hover:bg-green-700 disabled:opacity-50 disabled:cursor-not-allowed"
            >
              {currentStepIndex === STEPS.length - 1 ? 'Fertig' : 'Weiter'}
            </button>
          </div>
        </div>

        {/* Sidebar */}
        <div className="space-y-6">
          {/* Progress */}
          <div className="bg-white rounded-xl shadow p-6">
            <h3 className="font-semibold text-gray-900 mb-4">Fortschritt</h3>
            <div className="relative pt-1">
              <div className="flex mb-2 items-center justify-between">
                <span className="text-xs font-semibold text-green-600">
                  Schritt {currentStepIndex + 1} von {STEPS.length}
                </span>
                <span className="text-xs font-semibold text-green-600">
                  {Math.round(((currentStepIndex + 1) / STEPS.length) * 100)}%
                </span>
              </div>
              <div className="overflow-hidden h-2 mb-4 text-xs flex rounded bg-green-100">
                <div
                  style={{ width: `${((currentStepIndex + 1) / STEPS.length) * 100}%` }}
                  className="shadow-none flex flex-col text-center whitespace-nowrap text-white justify-center bg-green-600 transition-all duration-300"
                />
              </div>
            </div>
          </div>

          {/* Pipeline Overview */}
          <div className="bg-gradient-to-br from-green-500 to-emerald-600 rounded-xl shadow p-6 text-white">
            <h3 className="font-semibold mb-4">Pipeline Flow</h3>
            <div className="text-sm space-y-2 font-mono">
              <div className="bg-white/10 rounded px-2 py-1">Git Push/Tag</div>
              <div className="text-center text-green-200">↓</div>
              <div className="bg-white/10 rounded px-2 py-1">GitHub Actions</div>
              <div className="text-center text-green-200">↓</div>
              <div className="bg-white/10 rounded px-2 py-1">Unity Build</div>
              <div className="text-center text-green-200">↓</div>
              <div className="bg-white/10 rounded px-2 py-1">Deploy / Upload</div>
            </div>
          </div>

          {/* Quick Links */}
          <div className="bg-white rounded-xl shadow p-6">
            <h3 className="font-semibold text-gray-900 mb-4">Wichtige Dateien</h3>
            <ul className="space-y-2 text-sm">
              <li className="text-gray-600">
                <span className="text-green-600">YAML:</span> ci/build-all-platforms.yml
              </li>
              <li className="text-gray-600">
                <span className="text-green-600">C#:</span> Assets/Editor/BuildScript.cs
              </li>
              <li className="text-gray-600">
                <span className="text-green-600">JSON:</span> Assets/Resources/version.json
              </li>
              <li className="text-gray-600">
                <span className="text-green-600">Plist:</span> ci/ios-export-options.plist
              </li>
            </ul>
          </div>
        </div>
      </div>
    </AdminLayout>
  )
}