def notify(
    String context,
    String giteaUser, 
    String giteaPass, 
    String repositoryUrl, 
    String repositoryName, 
    String commitHash, 
    String buildStatus 
) {
    def status = buildStatus == 'success' ? 'success' : 'failure'
    def description = buildStatus == 'success' ? 'Build succeeded' : 'Build failed'
    
    sh """
    curl -X POST \
        -u "\${giteaUser}:\${giteaPass}" \
        -H "Content-Type: application/json" \
        -d '{"context":"${context}","state": "${status}", "description": "${description}"}' \
        ${repositoryUrl}deployer3000/${repositoryName}/statuses/${commitHash}
    """
}

pipeline {
    agent any
    parameters {
        string(
            name: 'VERSION',
            description: 'Версия в формате X.Y.Z (например, 1.0.0). Оставьте пустым для автоматического определения',
            trim: true
        )
    }
    environment {
        REGISTRY_NAME = 'registry.entcor/trust-module'
        IMAGE_NAME = "test-ci-cd"
        GITEA_REPOSITORY_URL = "http://git.entcor/api/v1/repos/" 
    }
    stages {
        stage ('Initialize variables') {
            steps {
                script {
                    // Если версия указана в параметрах - используем её
                    if (params.VERSION) {
                        env.IMAGE_TAG = params.VERSION
                        env.NEW_VERSION = params.VERSION
                        echo "Using manual version: ${params.VERSION}"
                    } 
                    // Иначе пытаемся получить последнюю версию из Gitea
                    else {
                        withCredentials([usernamePassword(credentialsId: 'gitea_creds', usernameVariable: 'GITEA_USER', passwordVariable: 'GITEA_PASS')]) {
                            def lastVersion = sh(script: """
                                curl -s -u "\${GITEA_USER}:\${GITEA_PASS}" \
                                "${env.GITEA_REPOSITORY_URL}deployer3000/${env.IMAGE_NAME}/releases" | \
                                sed -n 's/.*"tag_name": *"\\([^"]*\\).*/\\1/p' | sort -V | tail -n1
                            """, returnStdout: true).trim()
                            
                            if (!lastVersion) {
                                lastVersion = "0.0.0"
                                echo "No versions found in Gitea, using default: ${lastVersion}"
                            } else {
                                echo "Found last version in Gitea: ${lastVersion}"
                            }
                            
                            // Инкрементим версию
                            def (major, minor, patch) = lastVersion.tokenize('.')
                            def newVersion = "${major}.${minor}.${patch.toInteger() + 1}"
                            env.IMAGE_TAG = newVersion
                            env.NEW_VERSION = newVersion
                        }
                    }
                }
            }
        }
        stage ('Build docker image') {
            when {
                expression { env.CHANGE_BRANCH?.startsWith('rc') }
            }
            steps {
                script {
                    def image = docker.build("${env.IMAGE_NAME}:${env.IMAGE_TAG}")
                    sh "docker tag ${env.IMAGE_NAME}:${env.IMAGE_TAG} ${env.REGISTRY_NAME}/${env.IMAGE_NAME}:${env.IMAGE_TAG}"
                }
            }
        }
    }
    post {
        success {
            script {
                if (env.CHANGE_BRANCH?.startsWith('rc')) { 
                    withCredentials([usernamePassword(credentialsId: 'gitea_creds', usernameVariable: 'GITEA_USER', passwordVariable: 'GITEA_PASS')]) {
                        // Создаем релиз только если версия НЕ была указана вручную
                        if (!params.VERSION) {
                            sh """
                                curl -X POST -u "\${GITEA_USER}:\${GITEA_PASS}" \
                                -H "Content-Type: application/json" \
                                -d '{"tag_name": "${env.NEW_VERSION}", "name": "Release ${env.NEW_VERSION}", "target_commitish": "${env.GIT_COMMIT}"}' \
                                "${env.GITEA_REPOSITORY_URL}deployer3000/${env.IMAGE_NAME}/releases"
                            """
                            echo "New release ${env.NEW_VERSION} created in Gitea"
                        }
                        
                        // Остальной код (мердж PR, нотификации)
                        def prId = env.CHANGE_ID
                        sh """
                            curl -X POST \
                                 -u "\${GITEA_USER}:\${GITEA_PASS}" \
                                 -H "Content-Type: application/json" \
                                 -d '{"do":"merge"}' \
                                 "http://git.entcor/api/v1/repos/deployer3000/${env.IMAGE_NAME}/pulls/${prId}/merge"
                        """
                        
                        def context = "test-org/${env.IMAGE_NAME}/pipeline/pr-${env.CHANGE_TARGET}"
                        def commitHash = sh(script: "git rev-parse HEAD~1", returnStdout: true).trim()
                        notify(context, GITEA_USER, GITEA_PASS, env.GITEA_REPOSITORY_URL, env.IMAGE_NAME, commitHash, "success")
                    }
                }
            }
        }
    }
}