#!/bin/bash
#
# Setup script for workflow template
# - Installs pnpm if missing
# - Installs dependencies
# - Sets up pre-commit hook
#

set -e

echo "=========================================="
echo "Workflow Template Setup"
echo "=========================================="
echo ""

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

# Step 1: Check/install pnpm
echo "Checking for pnpm..."

if command -v pnpm &> /dev/null; then
    echo -e "${GREEN}pnpm found: $(pnpm --version)${NC}"
else
    echo -e "${YELLOW}pnpm not found. Installing...${NC}"
    
    # Try corepack first (ships with Node 16+)
    if command -v corepack &> /dev/null; then
        echo "Using corepack to enable pnpm..."
        corepack enable
        corepack prepare pnpm@latest --activate
    # Try npm as fallback
    elif command -v npm &> /dev/null; then
        echo "Using npm to install pnpm globally..."
        npm install -g pnpm
    else
        echo ""
        echo -e "${RED}ERROR: Neither pnpm, corepack, nor npm found.${NC}"
        echo ""
        echo "Please install Node.js first:"
        echo "  - https://nodejs.org (recommended)"
        echo "  - Or via your system's package manager"
        echo ""
        echo "After installing Node.js, re-run this setup:"
        echo "  pnpm run setup"
        echo ""
        exit 1
    fi
    
    echo -e "${GREEN}pnpm installed: $(pnpm --version)${NC}"
fi

echo ""

# Step 2: Install dependencies
echo "Installing dependencies..."
pnpm install

# Step 3: Install pre-commit hook
echo ""
echo "Setting up pre-commit hook..."

# Detect git directory
if [ -d ".git" ]; then
    mkdir -p .git/hooks
else
    echo -e "${YELLOW}Warning: .git directory not found. Run 'git init' first if this is a new repo.${NC}"
    echo "Creating hooks directory anyway..."
    mkdir -p .git/hooks
fi

# Create pre-commit hook
cat > .git/hooks/pre-commit << 'EOF'
#!/bin/bash
# Pre-commit hook for issue-based workflow
# Automatically installed by pnpm run setup

node .hooks/issue-linter.js
EOF

chmod +x .git/hooks/pre-commit

# Also make setup script executable
chmod +x scripts/setup.sh

echo -e "${GREEN}Pre-commit hook installed.${NC}"
echo ""

# Step 4: Summary
echo "=========================================="
echo -e "${GREEN}Setup complete!${NC}"
echo "=========================================="
echo ""
echo "Next steps:"
echo "  1. Read docs/workflow/INDEX.md"
echo "  2. Check .issues/INDEX.md for open issues"
echo "  3. Start working on an issue or create a new one"
echo ""
echo "The pre-commit hook will validate issue files before every commit."
echo "Code changes without a valid issue file will be rejected."
echo ""