package internal

import (
	"github.com/beevik/etree"
	"k8s.io/klog"
	devopsv1alpha3 "kubesphere.io/kubesphere/pkg/apis/devops/v1alpha3"
	"strconv"
	"strings"
)

func AppendGithubSourceToEtree(source *etree.Element, githubSource *devopsv1alpha3.GithubSource) {
	if githubSource == nil {
		klog.Warning("please provide GitHub source when the sourceType is GitHub")
		return
	}
	source.CreateAttr("class", "org.jenkinsci.plugins.github_branch_source.GitHubSCMSource")
	source.CreateAttr("plugin", "github-branch-source")
	source.CreateElement("id").SetText(githubSource.ScmId)
	source.CreateElement("credentialsId").SetText(githubSource.CredentialId)
	source.CreateElement("repoOwner").SetText(githubSource.Owner)
	source.CreateElement("repository").SetText(githubSource.Repo)
	if githubSource.ApiUri != "" {
		source.CreateElement("apiUri").SetText(githubSource.ApiUri)
	}
	traits := source.CreateElement("traits")
	if githubSource.DiscoverBranches != 0 {
		traits.CreateElement("org.jenkinsci.plugins.github__branch__source.BranchDiscoveryTrait").
			CreateElement("strategyId").SetText(strconv.Itoa(githubSource.DiscoverBranches))
	}
	if githubSource.DiscoverPRFromOrigin != 0 {
		traits.CreateElement("org.jenkinsci.plugins.github__branch__source.OriginPullRequestDiscoveryTrait").
			CreateElement("strategyId").SetText(strconv.Itoa(githubSource.DiscoverPRFromOrigin))
	}
	if githubSource.DiscoverPRFromForks != nil {
		forkTrait := traits.CreateElement("org.jenkinsci.plugins.github__branch__source.ForkPullRequestDiscoveryTrait")
		forkTrait.CreateElement("strategyId").SetText(strconv.Itoa(githubSource.DiscoverPRFromForks.Strategy))
		trustClass := "org.jenkinsci.plugins.github_branch_source.ForkPullRequestDiscoveryTrait$"
		if prTrust := GitHubPRDiscoverTrust(githubSource.DiscoverPRFromForks.Trust); prTrust.IsValid() {
			trustClass += prTrust.String()
		} else {
			klog.Warningf("invalid GitHub discover PR trust value: %d", prTrust.Value())
		}
		forkTrait.CreateElement("trust").CreateAttr("class", trustClass)
	}
	if githubSource.DiscoverTags {
		traits.CreateElement("org.jenkinsci.plugins.github__branch__source.TagDiscoveryTrait")
	}
	if githubSource.CloneOption != nil {
		cloneExtension := traits.CreateElement("jenkins.plugins.git.traits.CloneOptionTrait").CreateElement("extension")
		cloneExtension.CreateAttr("class", "hudson.plugins.git.extensions.impl.CloneOption")
		cloneExtension.CreateElement("shallow").SetText(strconv.FormatBool(githubSource.CloneOption.Shallow))
		cloneExtension.CreateElement("noTags").SetText(strconv.FormatBool(false))
		cloneExtension.CreateElement("honorRefspec").SetText(strconv.FormatBool(true))
		cloneExtension.CreateElement("reference")
		if githubSource.CloneOption.Timeout >= 0 {
			cloneExtension.CreateElement("timeout").SetText(strconv.Itoa(githubSource.CloneOption.Timeout))
		} else {
			cloneExtension.CreateElement("timeout").SetText(strconv.Itoa(10))
		}

		if githubSource.CloneOption.Depth >= 0 {
			cloneExtension.CreateElement("depth").SetText(strconv.Itoa(githubSource.CloneOption.Depth))
		} else {
			cloneExtension.CreateElement("depth").SetText(strconv.Itoa(1))
		}
	}
	if githubSource.RegexFilter != "" {
		regexTraits := traits.CreateElement("jenkins.scm.impl.trait.RegexSCMHeadFilterTrait")
		regexTraits.CreateAttr("plugin", "scm-api")
		regexTraits.CreateElement("regex").SetText(githubSource.RegexFilter)
	}
	return
}

func GetGithubSourcefromEtree(source *etree.Element) *devopsv1alpha3.GithubSource {
	var githubSource devopsv1alpha3.GithubSource
	if credential := source.SelectElement("credentialsId"); credential != nil {
		githubSource.CredentialId = credential.Text()
	}
	if repoOwner := source.SelectElement("repoOwner"); repoOwner != nil {
		githubSource.Owner = repoOwner.Text()
	}
	if repository := source.SelectElement("repository"); repository != nil {
		githubSource.Repo = repository.Text()
	}
	if apiUri := source.SelectElement("apiUri"); apiUri != nil {
		githubSource.ApiUri = apiUri.Text()
	}
	traits := source.SelectElement("traits")
	if branchDiscoverTrait := traits.SelectElement(
		"org.jenkinsci.plugins.github__branch__source.BranchDiscoveryTrait"); branchDiscoverTrait != nil {
		strategyId, _ := strconv.Atoi(branchDiscoverTrait.SelectElement("strategyId").Text())
		githubSource.DiscoverBranches = strategyId
	}
	if tagDiscoverTrait := traits.SelectElement(
		"org.jenkinsci.plugins.github__branch__source.TagDiscoveryTrait"); tagDiscoverTrait != nil {
		githubSource.DiscoverTags = true
	}
	if originPRDiscoverTrait := traits.SelectElement(
		"org.jenkinsci.plugins.github__branch__source.OriginPullRequestDiscoveryTrait"); originPRDiscoverTrait != nil {
		strategyId, _ := strconv.Atoi(originPRDiscoverTrait.SelectElement("strategyId").Text())
		githubSource.DiscoverPRFromOrigin = strategyId
	}
	if forkPRDiscoverTrait := traits.SelectElement(
		"org.jenkinsci.plugins.github__branch__source.ForkPullRequestDiscoveryTrait"); forkPRDiscoverTrait != nil {
		strategyId, _ := strconv.Atoi(forkPRDiscoverTrait.SelectElement("strategyId").Text())
		trustClass := forkPRDiscoverTrait.SelectElement("trust").SelectAttr("class").Value
		trust := strings.Split(trustClass, "$")
		if prTrust := GitHubPRDiscoverTrust(1).ParseFromString(trust[1]); prTrust.IsValid() {
			githubSource.DiscoverPRFromForks = &devopsv1alpha3.DiscoverPRFromForks{
				Strategy: strategyId,
				Trust:    prTrust.Value(),
			}
		} else {
			klog.Warningf("invalid Gitlab discover PR trust value: %s", trust[1])
		}
		if cloneTrait := traits.SelectElement(
			"jenkins.plugins.git.traits.CloneOptionTrait"); cloneTrait != nil {
			if cloneExtension := cloneTrait.SelectElement(
				"extension"); cloneExtension != nil {
				githubSource.CloneOption = &devopsv1alpha3.GitCloneOption{}
				if value, err := strconv.ParseBool(cloneExtension.SelectElement("shallow").Text()); err == nil {
					githubSource.CloneOption.Shallow = value
				}
				if value, err := strconv.ParseInt(cloneExtension.SelectElement("timeout").Text(), 10, 32); err == nil {
					githubSource.CloneOption.Timeout = int(value)
				}
				if value, err := strconv.ParseInt(cloneExtension.SelectElement("depth").Text(), 10, 32); err == nil {
					githubSource.CloneOption.Depth = int(value)
				}
			}
		}

		if regexTrait := traits.SelectElement(
			"jenkins.scm.impl.trait.RegexSCMHeadFilterTrait"); regexTrait != nil {
			if regex := regexTrait.SelectElement("regex"); regex != nil {
				githubSource.RegexFilter = regex.Text()
			}
		}
	}
	return &githubSource
}