#!/bin/bash
set -euo pipefail

# Clean Build Script for Firehose Monorepo
# This script performs a full clean rebuild of the Phoenix application

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
APP_DIR="${SCRIPT_DIR}/app"

echo "🔧 Starting clean build..."

# Function to check if PostgreSQL is running
check_postgres() {
    if command -v pg_isready >/dev/null 2>&1; then
        if pg_isready -q 2>/dev/null; then
            echo "✅ PostgreSQL is running"
            return 0
        fi
    fi

    # Check common locations
    if curl -s http://localhost:5432 >/dev/null 2>&1; then
        echo "✅ PostgreSQL is running (port 5432)"
        return 0
    fi

    echo "⚠️ PostgreSQL is not running. Skipping tests."
    return 1
}

# Function to set SSL certificates if needed
set_ssl_certs() {
    # Check for Homebrew CA certs
    if [ -f "/opt/homebrew/etc/ca-certificates/cert.pem" ]; then
        export SSL_CACERTFILE="/opt/homebrew/etc/ca-certificates/cert.pem"
        export SSL_CACERT="/opt/homebrew/etc/ca-certificates/cert.pem"
        echo "✅ SSL certificates set (Homebrew)"
    elif [ -f "/usr/local/etc/ca-certificates/cert.pem" ]; then
        export SSL_CACERTFILE="/usr/local/etc/ca-certificates/cert.pem"
        export SSL_CACERT="/usr/local/etc/ca-certificates/cert.pem"
        echo "✅ SSL certificates set (/usr/local)"
    fi
}

# Step 1: Clean build artifacts
echo "🧹 Cleaning build artifacts..."
cd "$APP_DIR"

# Remove all build artifacts
rm -rf _build
rm -rf deps/*.exs  # Remove compiled deps
rm -rf priv/static
if [ -d "config" ] && [ -f "config/config.exs" ]; then
    # Don't remove the config files themselves, just generated ones
    rm -f config/runtime.exs
fi

echo "✅ Cleaned build artifacts"

# Step 2: Set up environment
set_ssl_certs

# Check if Hex is installed
if ! command -v mix >/dev/null 2>&1; then
    echo "❌ Mix not found in PATH. Please install Elixir first."
    exit 1
fi

# Install Hex if not present
if ! mix hex version >/dev/null 2>&1; then
    echo "📦 Installing Hex..."
    mix local.hex --force
fi

# Step 3: Get dependencies
echo "📥 Fetching dependencies..."
mise exec -- mix deps.get

echo "✅ Dependencies fetched"

# Step 4: Compile dependencies
echo "🔨 Compiling dependencies..."
mise exec -- mix deps.compile

echo "✅ Dependencies compiled"

# Step 5: Compile the project
echo "🏗️ Compiling project..."
mise exec -- mix compile --warnings-as-errors

echo "✅ Project compiled successfully"

# Step 6: Run tests (if PostgreSQL is available)
if check_postgres; then
    echo "🧪 Running tests..."
    mise exec -- mix test

    if [ $? -eq 0 ]; then
        echo "✅ All tests passed"
    else
        echo "❌ Some tests failed"
        exit 1
    fi
else
    echo "⚠️ Skipping tests (PostgreSQL not available)"
fi

# Step 7: Format code (optional but recommended)
echo "✨ Formatting code..."
mise exec -- mix format

echo "✅ Code formatted"

echo ""
echo "🎉 Clean build completed successfully!"
echo ""
echo "To start the development server:"
echo "  cd $APP_DIR"
echo "  mise exec -- mix phx.server"
echo ""
echo "Or to run in release mode:"
echo "  mise exec -- mix release"
echo "  ./_build/dev/rel/firehose/bin/firehose console"