#!/bin/bash
# Comprehensive CI/CD validation script
# Validates workflow without requiring Docker for basic checks

set -e

echo "🔍 Comprehensive CI/CD Validation"
echo "==================================="

# 1. Check workflow file exists
if [ ! -f ".gitea/workflows/ci-cd.yaml" ]; then
    echo "❌ Workflow file not found: .gitea/workflows/ci-cd.yaml"
    exit 1
fi

echo "✅ Workflow file found"

# 2. Validate YAML syntax with Python (no Docker required)
echo ""
echo "🔍 Validating YAML syntax..."
python3 -c "import yaml; yaml.safe_load(open('.gitea/workflows/ci-cd.yaml'))" 2>&1
if [ $? -eq 0 ]; then
    echo "✅ YAML syntax is valid"
else
    echo "❌ YAML syntax error"
    exit 1
fi

# 3. Check required fields using Python
echo ""
echo "📋 Checking required fields..."
python3 << 'PYTHON'
import yaml

try:
    with open('.gitea/workflows/ci-cd.yaml') as f:
        workflow = yaml.safe_load(f)
    
    if not workflow:
        print("❌ Workflow is empty or invalid")
        exit(1)
    
    # Check for required fields
    has_name = 'name' in workflow
    has_on = 'on' in workflow
    has_jobs = 'jobs' in workflow
    
    if not has_name:
        print("❌ Missing 'name' field")
        exit(1)
    
    if not has_on:
        print("❌ Missing 'on' field")
        exit(1)
    
    if not has_jobs:
        print("❌ Missing 'jobs' field")
        exit(1)
    
    print("✅ All required fields present")
    
    # Check jobs structure
    jobs = workflow['jobs']
    print(f"📋 Jobs defined: {', '.join(jobs.keys())}")
    
    for job_name, job_config in jobs.items():
        if not isinstance(job_config, dict):
            print(f"❌ Job '{job_name}' is not properly formatted")
            exit(1)
        
        if 'steps' not in job_config:
            print(f"❌ Job '{job_name}' has no steps")
            exit(1)
        
        steps = job_config['steps']
        if not isinstance(steps, list):
            print(f"❌ Job '{job_name}' steps are not a list")
            exit(1)
        
        steps_count = len(steps)
        print(f"  ✅ {job_name}: {steps_count} steps")
        
except Exception as e:
    print(f"❌ Error parsing workflow: {e}")
    exit(1)
PYTHON

# 4. Check Arcodange-specific configurations
echo ""
echo "🔧 Checking Arcodange configurations..."
python3 << 'PYTHON'
import yaml

with open('.gitea/workflows/ci-cd.yaml') as f:
    workflow = yaml.safe_load(f)

# Check environment variables
if 'env' in workflow:
    env_vars = workflow['env']
    
    gitea_internal = env_vars.get('GITEA_INTERNAL', '')
    gitea_external = env_vars.get('GITEA_EXTERNAL', '')
    
    if gitea_internal and 'arcodange.lab' in gitea_internal:
        print("✅ Arcodange internal URL configured")
    else:
        print("⚠️  Arcodange internal URL not found or incorrect")
    
    if gitea_external and 'arcodange.fr' in gitea_external:
        print("✅ Arcodange external URL configured")
    else:
        print("⚠️  Arcodange external URL not found or incorrect")
else:
    print("⚠️  No environment variables configured")

# Check concurrency
if 'concurrency' in workflow:
    print("✅ Concurrency control configured")
else:
    print("⚠️  No concurrency control (consider adding)")
PYTHON

# 5. Check workflow structure
echo ""
echo "🏗️  Checking workflow structure..."
python3 << 'PYTHON'
import yaml

with open('.gitea/workflows/ci-cd.yaml') as f:
    workflow = yaml.safe_load(f)

# Check triggers
if 'on' in workflow:
    triggers = workflow['on']
    has_push = 'push' in triggers if isinstance(triggers, dict) else any('push' in str(t) for t in triggers)
    has_workflow_dispatch = 'workflow_dispatch' in triggers if isinstance(triggers, dict) else any('workflow_dispatch' in str(t) for t in triggers)
    
    if has_push:
        print("✅ Push trigger configured")
    else:
        print("⚠️  No push trigger")
    
    if has_workflow_dispatch:
        print("✅ Manual trigger (workflow_dispatch) configured")
    else:
        print("⚠️  No manual trigger")

# Check paths-ignore
if 'on' in workflow and isinstance(workflow['on'], dict) and 'push' in workflow['on']:
    push_config = workflow['on']['push']
    if isinstance(push_config, dict) and 'paths-ignore' in push_config:
        ignored_paths = push_config['paths-ignore']
        print(f"✅ Paths ignored: {', '.join(ignored_paths)}")
    else:
        print("⚠️  No paths-ignore configured")
PYTHON

# 6. Summary
echo ""
echo "🎉 Validation Complete!"
echo "================================"
echo "📁 Workflow: .gitea/workflows/ci-cd.yaml"
echo "✅ YAML syntax valid"
echo "✅ Required fields present"
echo "✅ Jobs structure valid"
echo "✅ Arcodange configurations checked"
echo "🎯 Ready for deployment"

echo ""
echo "💡 Next Steps:"
echo "  1. Test with Docker: ./scripts/test-cicd-simple.sh"
echo "  2. Commit changes: git commit -m '🤖 ci: validate workflow'"
echo "  3. Push to trigger: git push origin main"
echo "  4. Monitor pipeline: https://gitea.arcodange.lab/arcodange/dance-lessons-coach/actions"