'use client'

import React, { useState } from 'react'
import { SDKDocsSidebar } from '@/components/SDKDocsSidebar'
import { Copy, Check, Smartphone } from 'lucide-react'

function CopyButton({ text }: { text: string }) {
  const [copied, setCopied] = useState(false)
  const handleCopy = async () => {
    await navigator.clipboard.writeText(text)
    setCopied(true)
    setTimeout(() => setCopied(false), 2000)
  }
  return (
    <button onClick={handleCopy} className="p-2 hover:bg-gray-700 rounded transition-colors">
      {copied ? <Check className="w-4 h-4 text-green-400" /> : <Copy className="w-4 h-4 text-gray-400" />}
    </button>
  )
}

function CodeBlock({ code, filename }: { code: string; filename?: string }) {
  return (
    <div className="bg-gray-900 rounded-lg overflow-hidden">
      {filename && (
        <div className="px-4 py-2 bg-gray-800 text-gray-400 text-xs border-b border-gray-700">
          {filename}
        </div>
      )}
      <div className="relative">
        <div className="absolute top-2 right-2">
          <CopyButton text={code} />
        </div>
        <pre className="p-4 text-sm text-gray-300 font-mono overflow-x-auto">
          <code>{code}</code>
        </pre>
      </div>
    </div>
  )
}

export default function AndroidSDKPage() {
  return (
    <div className="min-h-screen bg-gray-50 flex">
      <SDKDocsSidebar />

      <main className="flex-1 ml-64">
        <div className="max-w-4xl mx-auto px-8 py-12">
          <div className="flex items-center gap-3 mb-2">
            <div className="w-10 h-10 rounded-lg bg-green-600 flex items-center justify-center">
              <Smartphone className="w-6 h-6 text-white" />
            </div>
            <h1 className="text-3xl font-bold text-gray-900">Android SDK (Kotlin)</h1>
          </div>
          <p className="text-lg text-gray-600 mb-8">
            Native Kotlin SDK fuer Android API 26+ mit Jetpack Compose Unterstuetzung.
          </p>

          {/* Requirements */}
          <section className="mb-12">
            <h2 className="text-xl font-semibold text-gray-900 mb-4">Systemvoraussetzungen</h2>
            <div className="bg-white rounded-xl border border-gray-200 overflow-hidden">
              <table className="min-w-full divide-y divide-gray-200">
                <tbody className="divide-y divide-gray-200">
                  <tr>
                    <td className="px-6 py-4 text-sm font-medium text-gray-900">Kotlin Version</td>
                    <td className="px-6 py-4 text-sm text-gray-600">1.9+</td>
                  </tr>
                  <tr>
                    <td className="px-6 py-4 text-sm font-medium text-gray-900">Min SDK</td>
                    <td className="px-6 py-4 text-sm text-gray-600">API 26 (Android 8.0)</td>
                  </tr>
                  <tr>
                    <td className="px-6 py-4 text-sm font-medium text-gray-900">Compile SDK</td>
                    <td className="px-6 py-4 text-sm text-gray-600">34+</td>
                  </tr>
                </tbody>
              </table>
            </div>
          </section>

          {/* Installation */}
          <section className="mb-12">
            <h2 className="text-xl font-semibold text-gray-900 mb-4">Installation</h2>
            <CodeBlock
              filename="build.gradle.kts (Module)"
              code={`dependencies {
    implementation("com.breakpilot:consent-sdk:1.0.0")

    // Fuer Jetpack Compose
    implementation("com.breakpilot:consent-sdk-compose:1.0.0")
}`}
            />
          </section>

          {/* Basic Setup */}
          <section className="mb-12">
            <h2 className="text-xl font-semibold text-gray-900 mb-4">Grundlegende Einrichtung</h2>
            <CodeBlock
              filename="MyApplication.kt"
              code={`import android.app.Application
import com.breakpilot.consent.ConsentManager

class MyApplication : Application() {
    override fun onCreate() {
        super.onCreate()

        // Consent Manager konfigurieren
        ConsentManager.configure(
            context = this,
            config = ConsentConfig(
                apiEndpoint = "https://api.example.com/consent",
                siteId = "my-android-app"
            )
        )

        // Initialisieren
        lifecycleScope.launch {
            ConsentManager.initialize()
        }
    }
}`}
            />
          </section>

          {/* Jetpack Compose */}
          <section className="mb-12">
            <h2 className="text-xl font-semibold text-gray-900 mb-4">Jetpack Compose Integration</h2>
            <CodeBlock
              filename="MainActivity.kt"
              code={`import androidx.compose.runtime.*
import com.breakpilot.consent.compose.*

@Composable
fun MainScreen() {
    val consent = rememberConsentState()

    Column {
        // Consent-abhaengige UI
        if (consent.hasConsent(ConsentCategory.ANALYTICS)) {
            AnalyticsView()
        }

        // Buttons
        Button(onClick = { consent.acceptAll() }) {
            Text("Alle akzeptieren")
        }

        Button(onClick = { consent.rejectAll() }) {
            Text("Alle ablehnen")
        }
    }

    // Consent Banner (automatisch angezeigt wenn noetig)
    ConsentBanner()
}

// ConsentGate Composable
@Composable
fun ProtectedContent() {
    ConsentGate(
        category = ConsentCategory.MARKETING,
        fallback = {
            Text("Marketing-Zustimmung erforderlich")
        }
    ) {
        MarketingContent()
    }
}`}
            />
          </section>

          {/* Traditional Android */}
          <section className="mb-12">
            <h2 className="text-xl font-semibold text-gray-900 mb-4">View-basierte Integration</h2>
            <CodeBlock
              filename="MainActivity.kt"
              code={`import androidx.appcompat.app.AppCompatActivity
import androidx.lifecycle.lifecycleScope
import com.breakpilot.consent.ConsentManager
import kotlinx.coroutines.launch
import kotlinx.coroutines.flow.collect

class MainActivity : AppCompatActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        // Auf Consent-Aenderungen reagieren
        lifecycleScope.launch {
            ConsentManager.consentFlow.collect { state ->
                updateUI(state)
            }
        }

        // Banner anzeigen wenn noetig
        if (ConsentManager.needsConsent()) {
            ConsentManager.showBanner(this)
        }
    }

    private fun updateUI(state: ConsentState?) {
        if (state?.hasConsent(ConsentCategory.ANALYTICS) == true) {
            loadAnalytics()
        }
    }

    fun onAcceptAllClick(view: View) {
        lifecycleScope.launch {
            ConsentManager.acceptAll()
        }
    }
}`}
            />
          </section>

          {/* API Reference */}
          <section>
            <h2 className="text-xl font-semibold text-gray-900 mb-4">API Referenz</h2>
            <div className="bg-white rounded-xl border border-gray-200 overflow-hidden">
              <table className="min-w-full divide-y divide-gray-200">
                <thead className="bg-gray-50">
                  <tr>
                    <th className="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase">Methode</th>
                    <th className="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase">Beschreibung</th>
                  </tr>
                </thead>
                <tbody className="divide-y divide-gray-200">
                  <tr>
                    <td className="px-6 py-4"><code className="text-violet-600">configure()</code></td>
                    <td className="px-6 py-4 text-sm text-gray-600">SDK konfigurieren</td>
                  </tr>
                  <tr>
                    <td className="px-6 py-4"><code className="text-violet-600">initialize()</code></td>
                    <td className="px-6 py-4 text-sm text-gray-600">SDK initialisieren (suspend)</td>
                  </tr>
                  <tr>
                    <td className="px-6 py-4"><code className="text-violet-600">hasConsent()</code></td>
                    <td className="px-6 py-4 text-sm text-gray-600">Consent fuer Kategorie pruefen</td>
                  </tr>
                  <tr>
                    <td className="px-6 py-4"><code className="text-violet-600">consentFlow</code></td>
                    <td className="px-6 py-4 text-sm text-gray-600">Flow fuer reaktive Updates</td>
                  </tr>
                  <tr>
                    <td className="px-6 py-4"><code className="text-violet-600">acceptAll()</code></td>
                    <td className="px-6 py-4 text-sm text-gray-600">Alle akzeptieren (suspend)</td>
                  </tr>
                  <tr>
                    <td className="px-6 py-4"><code className="text-violet-600">rejectAll()</code></td>
                    <td className="px-6 py-4 text-sm text-gray-600">Alle ablehnen (suspend)</td>
                  </tr>
                  <tr>
                    <td className="px-6 py-4"><code className="text-violet-600">setConsent()</code></td>
                    <td className="px-6 py-4 text-sm text-gray-600">Kategorien setzen (suspend)</td>
                  </tr>
                  <tr>
                    <td className="px-6 py-4"><code className="text-violet-600">showBanner()</code></td>
                    <td className="px-6 py-4 text-sm text-gray-600">Banner als DialogFragment</td>
                  </tr>
                </tbody>
              </table>
            </div>
          </section>
        </div>
      </main>
    </div>
  )
}