#!/usr/bin/env bash
set -e

# Colors for output
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
NC='\033[0m' # No Color

# Get script directory and project root
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
PROJECT_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"

# Detect Docker or Podman
CONTAINER_CLI=""
# Check if docker is actually podman in disguise
if command -v docker &> /dev/null && docker --version 2>&1 | grep -q "podman"; then
    CONTAINER_CLI="podman"
    echo -e "${GREEN}Using Podman (via docker alias)${NC}"
elif command -v docker &> /dev/null && docker info &> /dev/null; then
    CONTAINER_CLI="docker"
    echo -e "${GREEN}Using Docker${NC}"
elif command -v podman &> /dev/null; then
    CONTAINER_CLI="podman"
    echo -e "${GREEN}Using Podman${NC}"
else
    echo -e "${RED}✗ Neither Docker nor Podman found. Please install one of them first.${NC}"
    echo -e "${YELLOW}Install Docker: https://docs.docker.com/get-docker/${NC}"
    echo -e "${YELLOW}Install Podman: https://podman.io/getting-started/installation${NC}"
    exit 1
fi

echo -e "${GREEN}=== Dish Planner Development Setup ===${NC}\n"

# Check if .env exists in backend
if [ ! -f "$PROJECT_ROOT/backend/.env" ]; then
    echo -e "${YELLOW}Creating backend/.env from .env.example...${NC}"
    cp "$PROJECT_ROOT/backend/.env.example" "$PROJECT_ROOT/backend/.env"
    echo -e "${GREEN}✓ Created backend/.env${NC}\n"
fi

# Ensure APP_PORT is set for Podman (can't use privileged port 80)
if [ "$CONTAINER_CLI" = "podman" ] && ! grep -q "^APP_PORT=" "$PROJECT_ROOT/backend/.env"; then
    echo -e "${YELLOW}Setting APP_PORT=8000 for Podman (non-privileged port)...${NC}"
    echo "APP_PORT=8000" >> "$PROJECT_ROOT/backend/.env"
fi

# Backend setup
echo -e "${GREEN}=== Backend Setup ===${NC}"
cd "$PROJECT_ROOT/backend"

# Install dependencies if vendor doesn't exist
if [ ! -d "vendor" ]; then
    echo -e "${YELLOW}No vendor directory found. Installing dependencies with Docker...${NC}"
    # Use a standalone PHP/Composer Docker image to install dependencies
    # This is the recommended Laravel approach for first-time setup
    # Configure for Docker or Podman
    VOLUME_OPTS="$PROJECT_ROOT/backend:/var/www/html"
    USER_OPTS="-u $(id -u):$(id -g)"
    EXTRA_OPTS=""

    if [ "$CONTAINER_CLI" = "podman" ]; then
        # Podman on SELinux systems needs :Z and --userns=keep-id to maintain user ID
        VOLUME_OPTS="$VOLUME_OPTS:Z"
        USER_OPTS=""
        EXTRA_OPTS="--userns=keep-id"
    fi

    $CONTAINER_CLI run --rm \
        $USER_OPTS \
        $EXTRA_OPTS \
        -v "$VOLUME_OPTS" \
        -w /var/www/html \
        docker.io/laravelsail/php84-composer:latest \
        composer install --ignore-platform-reqs

    echo -e "${GREEN}✓ Backend dependencies installed${NC}\n"
else
    echo -e "${GREEN}✓ Backend dependencies already installed${NC}\n"
fi

# Check if database volume exists - if not, we're doing fresh initialization
FRESH_DB=false
if ! $CONTAINER_CLI volume inspect sail-mysql &>/dev/null && ! $CONTAINER_CLI volume inspect backend_sail-mysql &>/dev/null; then
    FRESH_DB=true
    echo -e "${YELLOW}Fresh database initialization detected${NC}"
fi

# Start containers using compose directly (docker-compose.override.yml is automatically used)
echo -e "${YELLOW}Starting backend containers...${NC}"
if $CONTAINER_CLI compose up -d 2>&1 | tee /tmp/compose-up.log; then
    echo -e "${GREEN}✓ Containers started${NC}\n"
else
    echo -e "${RED}✗ Failed to start containers. Check /tmp/compose-up.log for details${NC}"
    exit 1
fi

# Wait for database to be ready
echo -e "${YELLOW}Waiting for database to be ready...${NC}"
MAX_ATTEMPTS=30
ATTEMPT=0
while [ $ATTEMPT -lt $MAX_ATTEMPTS ]; do
    if $CONTAINER_CLI compose exec mysql mysqladmin ping -h localhost --silent 2>/dev/null; then
        echo -e "${GREEN}✓ Database is ready${NC}"
        break
    fi
    ATTEMPT=$((ATTEMPT + 1))
    echo -e "${YELLOW}Waiting for database... (attempt $ATTEMPT/$MAX_ATTEMPTS)${NC}"
    sleep 2
done

if [ $ATTEMPT -eq $MAX_ATTEMPTS ]; then
    echo -e "${RED}✗ Database failed to become ready${NC}"
    exit 1
fi

# Give MySQL extra time on fresh initialization to create users
if [ "$FRESH_DB" = true ]; then
    echo -e "${YELLOW}Waiting for fresh database to complete initialization...${NC}"
    sleep 10
else
    sleep 3
fi

# Run migrations
echo -e "${YELLOW}Running database migrations...${NC}"
$CONTAINER_CLI compose exec backend php artisan migrate --force

# Check if database has data
echo -e "${YELLOW}Checking if database needs seeding...${NC}"
TABLE_COUNT=$($CONTAINER_CLI compose exec backend php artisan tinker --execute="echo \DB::table('users')->count();" 2>/dev/null | tail -1 | tr -d '[:space:]' || echo "0")
# Default to 0 if not a number
if ! [[ "$TABLE_COUNT" =~ ^[0-9]+$ ]]; then
    TABLE_COUNT=0
fi
if [ "$TABLE_COUNT" -eq "0" ]; then
    echo -e "${YELLOW}Database is empty. Run seeders? (y/n)${NC}"
    read -r response
    if [[ "$response" =~ ^([yY][eE][sS]|[yY])$ ]]; then
        $CONTAINER_CLI compose exec backend php artisan db:seed
        echo -e "${GREEN}✓ Database seeded${NC}\n"
    fi
fi

echo -e "${GREEN}✓ Backend setup complete${NC}"
echo -e "${GREEN}Backend API running at: http://localhost:8000${NC}\n"

# Display summary
echo -e "${GREEN}=== Development Environment Ready ===${NC}"
echo -e "${GREEN}Backend API:${NC} http://localhost:8000"
echo -e "${GREEN}Frontend:${NC} http://localhost:5173"
echo -e "${GREEN}Database:${NC} MySQL on localhost:3306"
echo -e ""
echo -e "${YELLOW}Note:${NC} Frontend container will install dependencies and start automatically."
echo -e "${YELLOW}To view frontend logs:${NC}"
echo -e "  cd backend && $CONTAINER_CLI compose logs -f frontend"
echo -e ""
echo -e "${YELLOW}To stop all services:${NC}"
echo -e "  cd backend && $CONTAINER_CLI compose down"