import at.bxm.gradleplugins.svntools.api.SvnDepth
import at.bxm.gradleplugins.svntools.tasks.SvnAdd
import at.bxm.gradleplugins.svntools.tasks.SvnCheckout
import at.bxm.gradleplugins.svntools.tasks.SvnCommit
import at.bxm.gradleplugins.svntools.tasks.SvnVersion
import groovyx.net.http.RESTClient
import org.ajoberstar.grgit.Credentials
import org.ajoberstar.grgit.Person
import org.ajoberstar.grgit.util.JGitUtil
import org.apache.tools.ant.taskdefs.condition.Os

import static groovyx.net.http.ContentType.JSON

buildscript {
    repositories {
        jcenter()
        maven {
            url "https://plugins.gradle.org/m2/"
        }
    }

    dependencies {
        classpath "org.ajoberstar:grgit:${getProperty('version.grgit')}"
        classpath "at.bxm.gradleplugins:gradle-svntools-plugin:${getProperty('version.svntools')}"
        classpath "org.codehaus.groovy.modules.http-builder:http-builder:${getProperty('version.httpbuilder')}"
        classpath "org.hidetake:gradle-ssh-plugin:${getProperty('version.sshplugin')}"
        classpath "gradle.plugin.io.sdkman:gradle-sdkvendor-plugin:${getProperty('version.sdkmanplugin')}"
    }
}

apply plugin: "at.bxm.svntools"

svntools {
    username = apacheUser
    password = apachePassword
}

task checkout(dependsOn: assumesBranch) {
    group = "Pre-vote phase"
    description = "Checks out the Apache Groovy sources (assumes -Pbranch=branch_to_release)"
    // fresh clone may be overkill but take safe option for now unless skipClone specified
    doLast {
        def grgit
        if (project.hasProperty('skipClone')) {
            grgit = grgitClass.open(dir: stagingDir)
        } else {
            println "Cloning $repoUri to $stagingDir. This may take a few minutes ..."
            grgit = grgitClass.clone(dir: stagingDir, uri: repoUri, refToCheckout: branch)
        }
        grgit.checkout(branch: branch)
        def id = grgit.head().abbreviatedId
        def message = grgit.head().shortMessage
        def dir = file(stagingDir)
        assert !dir.isFile() && dir.listFiles()
        println "Checked out: $grgit.branch.current.name @ $id ($message)"
    }
}

task confirmVersion(dependsOn: [assumesPropsSet, checkout]) {
    group = "Pre-vote phase"
    description = "Confirm version to release (assumes -PreleaseVersion=version_to_release)"
    doLast {
        def propsFile = file("$stagingDir/gradle.properties")
        def versionLines = propsFile.text.readLines().findAll { it.matches(/groovy.*Version.*/) }
        def normalVersion = /(?ism).*$numVersion[a-zA-Z\-]*\.SNAPSHOT.*/
        def bundleVersion = /(?ism).*$numVersion[a-zA-Z\-]*-SNAPSHOT.*/
        versionLines.each {
            assert it.matches(normalVersion) || it.matches(bundleVersion)
        }
    }
}

// use Exec rather than GradleBuild to avoid any issues between gradle versions
task checkCompatibility(type: Exec, dependsOn: [assumesBranch, checkout]) {
    workingDir stagingDir
    def theArgs = []
    if (Os.isFamily(Os.FAMILY_WINDOWS)) {
        theArgs += ['cmd', '/C', 'gradlew.bat']
    } else {
        theArgs += ['sh', './gradlew']
    }
    theArgs << 'checkCompatibility'
    commandLine theArgs
}

task jiraPrecheck(dependsOn: assumesRelVersion) {
    doLast {
        def jira = new RESTClient('https://issues.apache.org/jira/rest/api/2/')
        def resp = jira.get(path: 'project/GROOVY/versions')
        assert resp.status == 200 && resp.data
        def versionFields = resp.data.find { it.name == relVersion }
        assert versionFields, "Version $relVersion not found in Jira!"
        if (!project.hasProperty('skipJiraReleaseCheck')) {
            assert !versionFields.released, "Version $relVersion already released!"
        }
        project.ext.versionId = versionFields.id
        project.ext.projectId = versionFields.projectId

        resp = jira.get(path: "version/$versionId/unresolvedIssueCount")
        assert resp.status == 200 && resp.data
        if (resp.data.issuesUnresolvedCount) {
            logger.warn "Warning found $resp.data.issuesUnresolvedCount unresolved issues for version $relVersion"
        }
        resp = jira.get(path: "version/$versionId/relatedIssueCounts")
        assert resp.status == 200 && resp.data
        project.ext.fixCount = resp.data.issuesFixedCount
    }
}

task createReleaseBranch(dependsOn: [assumesPropsSet, jiraPrecheck, confirmVersion]) {
    group = "Pre-vote phase"
    description = "Creates a release branch"
    doLast {
        def grgit = grgitClass.open(dir: stagingDir)
        grgit.checkout(branch: "REL_BRANCH_$underVersion", startPoint: branch, createBranch: true)
        println "Checked out: $grgit.branch.current.name"
    }
}

task updateVersionProperties(dependsOn: [assumesPropsSet, createReleaseBranch]) {
    group = "Pre-vote phase"
    description = "Promotes versions to non SNAPSHOT in gradle.properties and commits the result"
    doLast {
        def propsFile = file("$stagingDir/gradle.properties")
        def propsText = propsFile.text
        propsText = propsText.replace(numVersion + '-SNAPSHOT', relVersion)
        def osgiVersion = relVersion.replaceFirst("-", ".")
        propsText = propsText.replace(numVersion + '.SNAPSHOT', osgiVersion)
        propsFile.text = propsText
        def grgit = grgitClass.open(dir: stagingDir)
        grgit.add(patterns: ['gradle.properties'])
        def commit = grgit.commit(message: "Release $relVersion: update versions")
        println "@ $commit.abbreviatedId ($commit.shortMessage)"
    }
}
[jiraPrecheck, createReleaseBranch, updateVersionProperties]*.onlyIf {
    project.hasProperty('releaseBuild') && releaseBuild
}

// use Exec rather the GradleBuild to ensure we use the correct gradle version for the groovy version being built
task buildAndUploadStep1(type: Exec, dependsOn: [assumesPropsSet, updateVersionProperties, checkCompatibility]) {
    group = "Pre-vote phase"
    description = "Builds Apache Groovy and publishes the Maven artifacts to the staging repository on Bintray"
    workingDir stagingDir
    ext.theArgs = []
    if (Os.isFamily(Os.FAMILY_WINDOWS)) {
        theArgs += ['cmd', '/C', 'gradlew.bat']
    } else {
        theArgs += ['sh', './gradlew']
    }
    if (project.hasProperty('useAntlr4')) {
        theArgs << "-PuseAntlr4=${getProperty('useAntlr4')}"
    }
    if (!relVersion.startsWith('2.4')) {
        theArgs << '--no-build-cache'
    }
    theArgs << "-PartifactoryContext=https://groovy.jfrog.io/groovy/"
    theArgs << "-PartifactoryRepoKey=${releaseBuild ? 'libs-release-local' : 'libs-snapshot-local'}"
    if (project.hasProperty('skipPublish')) {
        theArgs += ['install', 'dist']
    } else {
        theArgs += ['install', 'dist', 'artifactoryPublish']
    }
    commandLine theArgs
}

// use Exec rather the GradleBuild to ensure we use the correct gradle version for the groovy version being built
task uploadStep2(type: Exec, dependsOn: [buildAndUploadStep1]) {
    group = "Pre-vote phase"
    description = "Publishes the Maven artifacts to the Apache staging repository"
    workingDir stagingDir
    if (apacheGroupId) {
        ext.theArgs = []
        if (Os.isFamily(Os.FAMILY_WINDOWS)) {
            theArgs += ['cmd', '/C', 'gradlew.bat']
        } else {
            theArgs += ['sh', './gradlew']
        }
        if (!relVersion.startsWith('2.4')) {
            theArgs << '--no-build-cache'
        }
        theArgs += ['publishAllPublicationsToApacheRepository']
        commandLine theArgs
    }
}

task cleanSvnDevWorkspace(type: Delete, dependsOn: [assumesBranch, uploadStep2]) {
    delete devWorkspaceRoot
}

task prepareSvnDevWorkspace(type: SvnCheckout, dependsOn: [assumesBranch, cleanSvnDevWorkspace]) {
    svnUrl = "https://dist.apache.org/repos/dist/dev/groovy"
    workspaceDir = devWorkspaceRoot
    depth = SvnDepth.FILES // slightly more efficient if we have two concurrent releases (e.g. 2.4.latest, 2.5.0)
}

task copySvnDistro(type: Copy, dependsOn: [assumesPropsSet, prepareSvnDevWorkspace]) {
    description = "Creates the required tree structure for distribution"
    from("$distParentDir/distributions")
    into "$devWorkspace/distribution"
    exclude 'apache-groovy-src-*'
}

task copySvnSources(type: Copy, dependsOn: [assumesPropsSet, prepareSvnDevWorkspace]) {
    description = "Creates the required tree structure for sources"
    from("$distParentDir/distributions")
    into "$devWorkspace/sources"
    include 'apache-groovy-src-*'
}

task createChecksums(dependsOn: [assumesPropsSet, copySvnDistro, copySvnSources]) {
    group = "Pre-vote phase"
    description = "Creates SHA-256 checksums for all artifacts"
    doLast {
        fileTree(devWorkspace).files.each { File f ->
            if (f.name.toLowerCase().endsWith('.zip')) {
                ant.checksum file: f, algorithm: 'SHA-256', fileext: '.sha256'
            }
        }
    }
}

task addSvnDevFiles(type: SvnAdd, dependsOn: [assumesPropsSet, createChecksums]) {
    description = "Adds the changed files to svn"
    add devWorkspace
    recursive true
}

task commitAddToDevSvn(type: SvnCommit, dependsOn: [assumesPropsSet, addSvnDevFiles]) {
    source << devWorkspace
    recursive = true
    commitMessage = "New version $branch $relVersion added to staging area"
}

task checkDevWorkspaceVersion(type: SvnVersion, dependsOn: [assumesPropsSet, commitAddToDevSvn]) {
    sourcePath = devWorkspace
    doLast {
        def f = new File(devWorkspace)
        println "SvnVersion: build/${f.parentFile.name}/${f.name} at r" + svnVersion.maxRevisionNumber
    }
}

task createAndPushTag(dependsOn: [assumesPropsSet, checkDevWorkspaceVersion]) {
    group = "Pre-vote phase"
    description = "Creates a release tag and pushes it to the Apache Git repository"
    doLast {
        def apacheCredentials = new Credentials(apacheUser, apachePassword)
        def grgit = grgitClass.open(dir: stagingDir, creds: apacheCredentials)
        def tagName = "GROOVY_$underVersion"
        def tag = null
        try {
            tag = JGitUtil.resolveTag(grgit.repository, tagName)
        } catch (ignore) {
        }
        if (project.hasProperty('skipSvnTag')) {
            assert tag, "Tag $tagName is supposed to exist but doesn't!"
        } else {
            assert !tag, "Tag $tagName already found!"
            tag = grgit.tag.add(name: tagName,
                    message: "Release Groovy $relVersion",
                    tagger: new Person(apacheUser, apacheUser + '@apache.org')
            )
        }
        project.ext.tagId = tag.commit.id
        if (!project.hasProperty('skipSvnPush')) {
            grgit.push(tags: true)
        }
    }
}

task releaseOnJira(dependsOn: [assumesRelVersion, jiraPrecheck, createAndPushTag]) {
    group = "Pre-vote phase"
    description = "Releases the version on JIRA"
    doLast {
        def jira = new RESTClient('https://issues.apache.org/jira/rest/api/2/')
        jira.headers['Authorization'] = 'Basic ' + "$apacheUser:$apachePassword".getBytes('iso-8859-1').encodeBase64()
        def resp = jira.put(
                path: "version/$versionId",
                body: /{ "released": true, "releaseDate": "$now" }/,
                requestContentType: JSON
        )
        assert resp.status == 200
    }
}

task prepareVoteThread(dependsOn: [assumesPropsSet, releaseOnJira]) {
    group = "Pre-vote phase"
    description = "Generates a [VOTE] thread to be tweaked and sent to the dev@ mailing list"
    doLast {
        println """
Below is a template email to tweak and send to the dev@ mailing list as a [VOTE] thread.
If the vote passes after 72h, proceed with phase2.
If the vote fails or the release is cancelled, manually unrelease the version from Jira and start again.

---------------- >8 -----------------

Dear development community,

I am happy to start the VOTE thread for a Groovy $relVersion release!

This release includes $fixCount bug fixes/improvements as outlined in the changelog:
https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=$projectId&version=$versionId

Tag: $repoBase?p=groovy.git;a=tag;h=refs/tags/GROOVY_$underVersion
Tag commit id: $tagId

The artifacts to be voted on are located as follows (r$svnVersion.maxRevisionNumber).
Source release: https://dist.apache.org/repos/dist/dev/groovy/$relVersion/sources
Convenience binaries: https://dist.apache.org/repos/dist/dev/groovy/$relVersion/distribution

Release artifacts are signed with a key from the following file:
https://dist.apache.org/repos/dist/dev/groovy/KEYS

Please vote on releasing this package as Apache Groovy $relVersion.

Reminder on ASF release approval requirements for PMC members:
http://www.apache.org/legal/release-policy.html#release-approval
Hints on validating checksums/signatures (but replace md5sum with sha256sum):
https://www.apache.org/info/verification.html

The vote is open for the next 72 hours and passes if a majority of at least three +1 PMC votes are cast.

[ ] +1 Release Apache Groovy $relVersion
[ ]  0 I don't have a strong opinion about this, but I assume it's ok
[ ] -1 Do not release Apache Groovy $relVersion because...

Here is my vote:

+1 (binding)

---------------- >8 -----------------
"""
    }
}

[createAndPushTag, releaseOnJira, prepareVoteThread]*.onlyIf { project.hasProperty('releaseBuild') && releaseBuild }