#!groovy

def repository = "registry.c.test-chamber-13.lan"
def repositoryCreds = "harbor-repository-creds"

def workspace
def dockerFile
def dockerScript

def label = "kubernetes-${UUID.randomUUID().toString()}"
def templateName = "pipeline-worker"
pipeline {
    agent {
        kubernetes {
            yaml functions.podYaml(
                repo: repository,
                templateName: templateName,
                kaniko: true
            )
        }
    }

    stages {
        stage ('Initalize Jenkins') {
            steps {
                script {
                    workspace = pwd()
                    def calibreVer = "5.40.0"
                    dockerFile = """FROM ${repository}/dockerhub/library/ubuntu:focal

LABEL org.opencontainers.image.authors="The_Spider <spider@smoothnet.org>"
LABEL org.opencontainers.image.title="calibre"
LABEL org.opencontainers.image.description="Docker container for converting ebooks"
LABEL org.opencontainers.image.base.name="docker.io/library/ubuntu:focal"

COPY entrypoint.sh /calibre/entrypoint.sh

RUN apt-get update && \\
    apt-get upgrade -y && \\
    apt-get install -y --no-install-recommends curl xz-utils libgl1 libxcb1 && \\
    apt-get clean && \\
    chmod +x /calibre/entrypoint.sh && \\
    mkdir -p /opt/calibre && \\
    curl -Lks "https://nexus.c.test-chamber-13.lan/repository/calibre/${calibreVer}/calibre-${calibreVer}-x86_64.txz" -o /tmp/calibre.tar.xz && \\
    tar -J -x -f /tmp/calibre.tar.xz -C /opt/calibre && \\
    rm -f /tmp/calibre.tar.xz

ENTRYPOINT ["/bin/bash", "-c", "/calibre/entrypoint.sh"]
"""
                    dockerScript = """#!/usr/bin/env bash

IFS=\$'\\n'

while true; do
        sleep 5s
        if [ ! -z "\$(find /calibre/input -type f \\( -iname "*.mobi" -o -iname "*.epub" -o -iname "*.prc" \\) -print -quit)" ]; then
                for i in \$(find /calibre/input -type f \\( -iname "*.mobi" -o -iname "*.epub" -o -iname "*.prc" \\)); do
                        /opt/calibre/ebook-convert "\${i}" "/calibre/output/\$(basename \${i%.*}.azw3)"
                        rm -f -v "\${i}"
                done
        fi
done
"""

                    writeFile(file: workspace + "/entrypoint.sh", text: dockerScript)
                }
            }
        }

        stage ('Build & Push') {
            steps {
                container ('kaniko') {
                    script {
                        declarativeFunctions.buildContainerMultipleDestinations(
                            dockerFile: dockerFile,
                            repositoryAccess: [
                                [
                                    repository: repository,
                                    credentials: repositoryCreds
                                ],
                            ],
                            destination: [
                                "${repository}/library/calibre:latest",
                            ]
                        )
                    }
                }
            }
        }
    }
}