pipeline {
    agent any

    environment {
        GITEA_REPO_PATH = "server/reverse-proxy"
        GITEA_API_URL = "https://gitea.lucasroyer.fr/api/v1"
    }

    stages {
        stage('Check git...') {
            steps {
                checkout scm
            }
        }
        stage('Build') {
            steps {
                echo "Build Caddy with cache plugin..."
                sh "docker compose build --pull"
            }
        }
        stage('Deploy') {
            steps {
                echo "Deploy new reverse proxy..."
                sh "docker compose up -d"
            }
        }
        stage('Check module...') {
            steps {
                script {
                    // Ask caddy to list modules
                    def modules = sh(script: "docker exec caddy-reverse-proxy caddy list-modules", returnStdout: true)
                    if (modules.contains('http.handlers.cache')) {
                        echo "Cache module activated"
                    } else {
                        error "Error : can't find cache module"
                    }
                }
            }
        }
    }

    post {
        always { 
            script {
                // Fetch the current commit SHA
                def commitSha = sh(script: 'git rev-parse HEAD', returnStdout: true).trim()
                
                // Define build status and description based on current result
                def buildState = currentBuild.currentResult == 'SUCCESS' ? 'success' : 'failure'
                def buildDesc = currentBuild.currentResult == 'SUCCESS' ? 'Build successful' : 'Build failed'

                // Notify Gitea using the API (requires credential in Jenkins)
                withCredentials([[$class: 'StringBinding', credentialsId: 'jenkins', variable: 'GITEA_TOKEN']]) {
                    sh """
                    curl -f -X POST "${GITEA_API_URL}/repos/${GITEA_REPO_PATH}/statuses/${commitSha}" \
                        -H "Authorization: token ${GITEA_TOKEN}" \
                        -H "Content-Type: application/json" \
                        -d '{"state": "${buildState}", "target_url": "${env.BUILD_URL}", "description": "${buildDesc}", "context": "jenkins-ci"}'
                    """
                }
            }
            echo "Clean unused image..."
            sh "docker image prune -f" 
        }
        success {
            echo "Success !"
        }
        failure {
            echo "Failed."
        }
    }
}