#!/bin/bash
#
# Mini-Cloud Client Build Script
# Baut Desktop- und Mobile-Clients via Docker (kein lokales Setup noetig)
#
# Verwendung:
#   ./build.sh linux        # Linux Desktop (.deb + .AppImage)
#   ./build.sh windows      # Windows Desktop (.msi + .exe)
#   ./build.sh mac          # macOS Desktop (.dmg) - nur auf macOS moeglich
#   ./build.sh android      # Android App (.apk)
#   ./build.sh ios          # iOS App (.ipa) - nur auf macOS moeglich
#   ./build.sh all-desktop  # Linux + Windows
#   ./build.sh clean        # Build-Cache loeschen
#
# Nach dem Build wird der Client automatisch auf den Server hochgeladen
# wenn CLOUD_URL und BUILD_UPLOAD_TOKEN in .env gesetzt sind.
#

set -e

SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
DESKTOP_DIR="$SCRIPT_DIR/clients/desktop"
MOBILE_DIR="$SCRIPT_DIR/clients/mobile"
OUTPUT_DIR="$SCRIPT_DIR/build-output"

RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
NC='\033[0m'

info()  { echo -e "${GREEN}[BUILD]${NC} $1"; }
warn()  { echo -e "${YELLOW}[WARN]${NC} $1"; }
error() { echo -e "${RED}[ERROR]${NC} $1"; exit 1; }

# Load .env if exists
if [ -f "$SCRIPT_DIR/.env" ]; then
    export $(grep -v '^#' "$SCRIPT_DIR/.env" | grep -E '^(CLOUD_URL|BUILD_UPLOAD_TOKEN)=' | xargs)
fi

mkdir -p "$OUTPUT_DIR"

upload_to_server() {
    local platform="$1"
    local filepath="$2"

    if [ -z "$CLOUD_URL" ] || [ -z "$BUILD_UPLOAD_TOKEN" ]; then
        warn "CLOUD_URL oder BUILD_UPLOAD_TOKEN nicht gesetzt - Upload uebersprungen"
        warn "Setze beide in .env fuer automatischen Upload"
        return
    fi

    local filename=$(basename "$filepath")
    info "Lade $filename auf $CLOUD_URL hoch..."

    local http_code
    http_code=$(curl -s -o /tmp/upload_response.txt -w "%{http_code}" \
        -X POST "$CLOUD_URL/api/clients/$platform/upload" \
        -H "X-Build-Token: $BUILD_UPLOAD_TOKEN" \
        -F "file=@$filepath")

    if [ "$http_code" = "200" ]; then
        info "Upload erfolgreich: $filename -> $CLOUD_URL"
        cat /tmp/upload_response.txt | python3 -m json.tool 2>/dev/null || cat /tmp/upload_response.txt
    elif [ "$http_code" = "403" ]; then
        error "Upload fehlgeschlagen: BUILD_UPLOAD_TOKEN ist falsch!"
        echo ""
        echo "  Der BUILD_UPLOAD_TOKEN in deiner .env muss der SECRET_KEY"
        echo "  oder JWT_SECRET_KEY vom Zielserver sein."
        echo ""
        echo "  Pruefe auf dem Server: grep SECRET_KEY /pfad/zur/.env"
        echo "  Dann den Wert in die lokale .env als BUILD_UPLOAD_TOKEN kopieren."
        echo ""
    elif [ "$http_code" = "000" ]; then
        error "Upload fehlgeschlagen: Server nicht erreichbar ($CLOUD_URL)"
    else
        warn "Upload fehlgeschlagen (HTTP $http_code)"
        cat /tmp/upload_response.txt 2>/dev/null
    fi
    rm -f /tmp/upload_response.txt
}

build_linux() {
    info "Baue Linux Desktop Client..."
    cd "$DESKTOP_DIR"

    sudo docker build -f Dockerfile.build -t minicloud-desktop-builder .

    sudo docker run --rm \
        -v "$OUTPUT_DIR:/output" \
        minicloud-desktop-builder \
        bash -c "npm run tauri build && cp -r src-tauri/target/release/bundle/* /output/ 2>/dev/null; \
                 cp src-tauri/target/release/minicloud-sync /output/ 2>/dev/null; \
                 echo 'Linux Build fertig!'"

    info "Linux Build fertig! Dateien in: $OUTPUT_DIR/"

    # Upload best file (AppImage > deb > binary)
    local upload_file=""
    for f in "$OUTPUT_DIR"/*.AppImage "$OUTPUT_DIR"/*.deb "$OUTPUT_DIR"/minicloud-sync; do
        if [ -f "$f" ]; then upload_file="$f"; break; fi
    done
    [ -n "$upload_file" ] && upload_to_server "linux" "$upload_file"
}

build_windows() {
    info "Baue Windows Desktop Client (Cross-Compile)..."
    cd "$DESKTOP_DIR"

    sudo docker build -f Dockerfile.build -t minicloud-desktop-builder .

    sudo docker run --rm \
        -v "$OUTPUT_DIR:/output" \
        -e CARGO_TARGET_X86_64_PC_WINDOWS_GNU_LINKER=x86_64-w64-mingw32-gcc \
        minicloud-desktop-builder \
        bash -c "npm run tauri build -- --target x86_64-pc-windows-gnu 2>&1 || true; \
                 find src-tauri/target -name '*.exe' -o -name '*.msi' | head -5; \
                 cp src-tauri/target/x86_64-pc-windows-gnu/release/*.exe /output/ 2>/dev/null; \
                 cp -r src-tauri/target/x86_64-pc-windows-gnu/release/bundle/* /output/ 2>/dev/null; \
                 echo 'Windows Build fertig!'"

    info "Windows Build fertig! Dateien in: $OUTPUT_DIR/"

    # Upload setup installer (NSIS with WebView2 bundled), not the naked .exe
    local upload_file=""
    for f in "$OUTPUT_DIR"/nsis/*setup*.exe "$OUTPUT_DIR"/*.msi "$OUTPUT_DIR"/nsis/*.exe; do
        if [ -f "$f" ]; then upload_file="$f"; break; fi
    done
    [ -n "$upload_file" ] && upload_to_server "windows" "$upload_file"
}

build_mac() {
    # macOS kann nicht cross-compiled werden, muss auf macOS laufen
    if [[ "$(uname)" != "Darwin" ]]; then
        error "macOS Build ist nur auf macOS moeglich!"
    fi

    info "Baue macOS Desktop Client..."
    cd "$DESKTOP_DIR"
    npm install
    npm run tauri build

    cp -r src-tauri/target/release/bundle/* "$OUTPUT_DIR/" 2>/dev/null
    info "macOS Build fertig! Dateien in: $OUTPUT_DIR/"

    local upload_file=""
    for f in "$OUTPUT_DIR"/*.dmg; do
        if [ -f "$f" ]; then upload_file="$f"; break; fi
    done
    [ -n "$upload_file" ] && upload_to_server "mac" "$upload_file"
}

build_android() {
    if [ ! -d "$MOBILE_DIR" ]; then
        error "Mobile Client noch nicht erstellt (clients/mobile/)"
    fi

    info "Baue Android App..."
    cd "$MOBILE_DIR"

    sudo docker run --rm \
        -v "$MOBILE_DIR:/app" \
        -v "$OUTPUT_DIR:/output" \
        ghcr.io/nickvdyck/flutter-android:latest \
        bash -c "cd /app && flutter pub get && flutter build apk --release && \
                 cp build/app/outputs/flutter-apk/app-release.apk /output/minicloud.apk && \
                 echo 'Android Build fertig!'"

    info "Android APK: $OUTPUT_DIR/minicloud.apk"
    [ -f "$OUTPUT_DIR/minicloud.apk" ] && upload_to_server "android" "$OUTPUT_DIR/minicloud.apk"
}

build_ios() {
    if [[ "$(uname)" != "Darwin" ]]; then
        error "iOS Build ist nur auf macOS moeglich!"
    fi

    if [ ! -d "$MOBILE_DIR" ]; then
        error "Mobile Client noch nicht erstellt (clients/mobile/)"
    fi

    info "Baue iOS App..."
    cd "$MOBILE_DIR"
    flutter pub get
    flutter build ios --release

    info "iOS Build fertig! Oeffne Xcode fuer Signierung + Archive."

    local upload_file=""
    for f in "$MOBILE_DIR"/build/ios/ipa/*.ipa; do
        if [ -f "$f" ]; then upload_file="$f"; break; fi
    done
    [ -n "$upload_file" ] && upload_to_server "ios" "$upload_file"
}

do_clean() {
    info "Loesche Build-Cache..."
    rm -rf "$OUTPUT_DIR"/*
    rm -rf "$DESKTOP_DIR/src-tauri/target"
    rm -rf "$MOBILE_DIR/build" 2>/dev/null
    sudo docker rmi minicloud-desktop-builder 2>/dev/null || true
    info "Build-Cache geloescht."
}

# Main
case "${1:-help}" in
    linux)
        build_linux
        ;;
    windows)
        build_windows
        ;;
    mac|macos)
        build_mac
        ;;
    android)
        build_android
        ;;
    ios)
        build_ios
        ;;
    all-desktop)
        build_linux
        build_windows
        ;;
    clean)
        do_clean
        ;;
    *)
        echo ""
        echo "Mini-Cloud Client Build Script"
        echo ""
        echo "Verwendung: $0 <ziel>"
        echo ""
        echo "Desktop:"
        echo "  linux        Linux (.deb + .AppImage + Binary)"
        echo "  windows      Windows (.msi + .exe) - Cross-Compile via Docker"
        echo "  mac          macOS (.dmg) - nur auf macOS"
        echo "  all-desktop  Linux + Windows"
        echo ""
        echo "Mobile:"
        echo "  android      Android (.apk) - via Docker"
        echo "  ios          iOS (.ipa) - nur auf macOS"
        echo ""
        echo "Sonstiges:"
        echo "  clean        Build-Cache loeschen"
        echo ""
        echo "Alle Builds (ausser mac/ios) laufen in Docker - kein lokales"
        echo "Setup noetig. Output landet in: build-output/"
        echo ""
        echo "Auto-Upload: Wenn CLOUD_URL und BUILD_UPLOAD_TOKEN in .env"
        echo "gesetzt sind, wird der Client nach dem Build automatisch auf"
        echo "den Server hochgeladen und steht zum Download bereit."
        echo ""
        ;;
esac