#!/bin/bash

# Spinifex Platform Development Environment Setup
# This script sets up a complete development environment for the Spinifex platform

set -euo pipefail

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
PROJECT_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
MULGA_ROOT="$(cd "$PROJECT_ROOT/.." && pwd)"

# Default configuration
NATS_PORT=4222
PREDASTORE_PORT=8443
SPINIFEX_GATEWAY_PORT=9999

echo "🚀 Setting up Spinifex development environment..."
echo "Project root: $PROJECT_ROOT"

# Function to check if command exists
command_exists() {
    command -v "$1" >/dev/null 2>&1
}

# Function to check if port is available
port_available() {
    ! nc -z localhost "$1" 2>/dev/null
}

# Check dependencies
echo "🔍 Checking dependencies..."

# Check for required commands
required_commands=("go" "make")
missing_required=false
for cmd in "${required_commands[@]}"; do
    if command_exists "$cmd"; then
        echo "✅ $cmd found"
    else
        echo "❌ $cmd not found. Please install $cmd"
        missing_required=true
        case "$cmd" in
            "go")
                echo "   Install Go: https://golang.org/dl/"
                ;;
        esac
    fi
done
if [ "$missing_required" = true ]; then
    echo "❌ Missing required dependencies. Cannot continue."
    exit 1
fi

# Check optional commands
optional_commands=("air" "nbdkit")
for cmd in "${optional_commands[@]}"; do
    if command_exists "$cmd"; then
        echo "✅ $cmd found (optional)"
    else
        echo "⚠️  $cmd not found (optional)"
        case "$cmd" in
            "air")
                echo "   Install air for hot reloading: go install github.com/air-verse/air@latest"
                ;;
            "nbdkit")
                echo "   Install nbdkit: sudo apt-get install nbdkit (Ubuntu/Debian)"
                ;;
        esac
    fi
done

# Check OVN/OVS commands (required for VPC networking)
echo ""
echo "🔍 Checking OVN/OVS dependencies..."
ovn_commands=("ovs-vsctl" "ovn-controller" "ovn-nbctl")
ovn_ready=true
for cmd in "${ovn_commands[@]}"; do
    if command_exists "$cmd"; then
        echo "✅ $cmd found"
    else
        echo "⚠️  $cmd not found (required for VPC networking)"
        ovn_ready=false
    fi
done
if [ "$ovn_ready" = false ]; then
    echo "   Install OVN: sudo apt-get install ovn-central ovn-host openvswitch-switch"
    echo "   Or run: make quickinstall"
fi

# Initialize br-int if OVS is available
if command_exists "ovs-vsctl"; then
    echo ""
    echo "🌐 Checking OVS br-int bridge..."
    if ovs-vsctl br-exists br-int 2>/dev/null; then
        echo "✅ br-int already exists"
    else
        echo "⚠️  br-int not found. Run ./scripts/setup-ovn.sh to initialize OVN networking"
    fi
fi

# Check component repositories
echo ""
echo "📦 Checking component repositories..."

components=("viperblock" "predastore")
for component in "${components[@]}"; do
    component_path="$MULGA_ROOT/$component"
    if [[ -d "$component_path" ]]; then
        echo "✅ $component found at $component_path"
        if [[ -f "$component_path/go.mod" ]]; then
            echo "   Go module verified"
        else
            echo "   ⚠️  No go.mod found in $component"
        fi
    else
        echo "❌ $component not found at $component_path"
        echo "   Run: ./scripts/clone-deps.sh"
    fi
done

# Check port availability
echo ""
echo "🔌 Checking port availability..."

ports=("$NATS_PORT:NATS" "$PREDASTORE_PORT:Predastore" "$SPINIFEX_GATEWAY_PORT:Spinifex Gateway")
for port_info in "${ports[@]}"; do
    port="${port_info%:*}"
    service="${port_info#*:}"
    if port_available "$port"; then
        echo "✅ Port $port available for $service"
    else
        echo "⚠️  Port $port already in use (needed for $service)"
    fi
done

# Build Spinifex first (needed for admin init)
echo ""
echo "🔨 Building Spinifex..."
cd "$PROJECT_ROOT"
make build
echo "✅ Spinifex built successfully"

# Build components
echo ""
echo "🔨 Building components..."

# Build Viperblock
if [[ -d "$MULGA_ROOT/viperblock" ]]; then
    echo "📦 Building Viperblock..."
    cd "$MULGA_ROOT/viperblock"
    make build
    echo "✅ Viperblock built successfully"
else
    echo "⚠️  Viperblock directory not found, skipping build"
fi

# Build Predastore
if [[ -d "$MULGA_ROOT/predastore" ]]; then
    echo "📦 Building Predastore..."
    cd "$MULGA_ROOT/predastore"
    make build
    echo "✅ Predastore built successfully"
else
    echo "⚠️  Predastore directory not found, skipping build"
fi

echo ""
echo "Development environment setup complete!"
echo ""
echo "Recommended: Use scripts/dev-install.sh for a production-parity setup"
echo "  (systemd, privilege separation, production paths)."
echo ""
echo "  scripts/dev-install.sh  # One-time: build, install, init, start via systemd"
echo "  make deploy             # Daily: rebuild + copy binary + restart all"
echo "  make reinstall          # Changed a .service file? Re-run full setup"
echo ""
echo "Legacy workflow (deprecated, retained for pseudo-multinode CI only):"
echo "  ./scripts/setup-ovn.sh --management"
echo "  sudo ./bin/spx admin init --region ap-southeast-2 --az ap-southeast-2a --node node1 --nodes 1"
echo "  ./scripts/start-dev.sh"