pipeline {
    agent any

    parameters {
        string(
            name: 'REPO_URL',
            defaultValue: 'https://git.crowmate.fr/crowmate/Nest.git',
            description: 'Gitea repository URL (to retrieve docker-compose.prod.yml)'
        )
        string(
            name: 'BRANCH',
            defaultValue: 'main',
            description: 'Branch'
        )
        string(
            name: 'STACK_NAME',
            defaultValue: 'nest',
            description: 'Stack name in Portainer'
        )
        string(
            name: 'IMAGE_TAG',
            defaultValue: 'latest',
            description: 'Image tag to deploy'
        )
    }

    environment {
        GITEA_CREDENTIALS_ID = 'gitea-token'
        PORTAINER_URL        = 'https://docker.devgoblin.fr'
        PORTAINER_ENV_ID     = '3'
    }

    stages {

        stage('Clone') {
            steps {
                cleanWs()
                checkout([
                    $class: 'GitSCM',
                    branches: [[name: "*/${params.BRANCH}"]],
                    userRemoteConfigs: [[
                        url: params.REPO_URL,
                        credentialsId: env.GITEA_CREDENTIALS_ID
                    ]]
                ])
                echo "Repository cloned"
            }
        }

        stage('Validation') {
            steps {
                script {
                    if (!fileExists('docker-compose.prod.yml')) {
                        error("docker-compose.prod.yml not found at the repository root")
                    }
                    echo "docker-compose.prod.yml found"
                }
            }
        }

        stage('Deploy to Portainer') {
            steps {
                withCredentials([string(credentialsId: 'portainer-token', variable: 'PORTAINER_TOKEN')]) {
                    sh '''
                        COMPOSE_CONTENT=$(base64 -w 0 docker-compose.prod.yml)

                        # Get the list of stacks
                        STACKS=$(curl -s -X GET "''' + env.PORTAINER_URL + '''/api/stacks" \
                            -H "X-API-Key: $PORTAINER_TOKEN")

                        # Check whether the stack already exists
                        STACK_ID=$(echo "$STACKS" | jq -r '.[] | select(.Name == "''' + params.STACK_NAME + '''") | .Id')

                        if [ -n "$STACK_ID" ]; then
                            echo "Existing stack found (ID: $STACK_ID), updating..."
                            RESPONSE=$(curl -s -X PUT "''' + env.PORTAINER_URL + '''/api/stacks/$STACK_ID?endpointId=''' + env.PORTAINER_ENV_ID + '''" \
                                -H "X-API-Key: $PORTAINER_TOKEN" \
                                -H "Content-Type: application/json" \
                                -d "{\"stackFileContent\": \"$COMPOSE_CONTENT\", \"prune\": true, \"pullImage\": true}")
                        else
                            echo "Creating stack ''' + params.STACK_NAME + '''..."
                            RESPONSE=$(curl -s -X POST "''' + env.PORTAINER_URL + '''/api/stacks/create/standalone/string?endpointId=''' + env.PORTAINER_ENV_ID + '''" \
                                -H "X-API-Key: $PORTAINER_TOKEN" \
                                -H "Content-Type: application/json" \
                                -d "{\"name\": \"''' + params.STACK_NAME + '''\", \"stackFileContent\": \"$COMPOSE_CONTENT\"}")
                        fi

                        # Check whether the response contains an error
                        if echo "$RESPONSE" | jq -e '.message' > /dev/null 2>&1; then
                            echo "Portainer error: $(echo $RESPONSE | jq -r '.message')"
                            exit 1
                        fi

                        echo "Stack deployed successfully"
                    '''
                }
            }
        }

    }

    post {
        success {
            echo "Stack '${params.STACK_NAME}' deployed to Portainer (tag: ${params.IMAGE_TAG})"
        }
        failure {
            echo "Failed to deploy stack '${params.STACK_NAME}'"
        }
    }
}