package webhook

import (
	"encoding/json"
	"log"
	"regexp"
	"strconv"

	"github.com/google/go-github/v28/github"
)

func (receiver *Receiver) handleOtherPullRequestEvents(eventType string, body []byte) {
	defer func() {
		if r := recover(); r != nil {
			log.Println(r)
		}

		if !receiver.testing {
			receiver.wg.Done()
		}
	}()

	var number int
	var sender string

	switch eventType {
	case "pull_request_review":
		event := &github.PullRequestReviewEvent{}
		err := json.Unmarshal(body, event)
		if err != nil {
			log.Println(err)
			return
		}

		number = *event.PullRequest.Number
		sender = *event.Sender.Login
	case "issue_comment":
		event := &github.IssueCommentEvent{}
		err := json.Unmarshal(body, event)
		if err != nil {
			log.Println(err)
			return
		}

		receiver.membersLock.RLock()
		members := receiver.members
		receiver.membersLock.RUnlock()
		if members != nil {
			_, isMember := (*members)[*event.Sender.Login]
			if isMember {
				body := *event.Comment.Body
				if botMentioned, _ := regexp.MatchString(`@macportsbot\s`, body); botMentioned { // TODO: read bot user from ENV
					if doRetry, _ := regexp.MatchString(`@macportsbot\s+retry`, body); doRetry { // TODO: test compile patterns
						pr, err := receiver.githubClient.GetPullRequest(*event.Repo.Owner.Login, *event.Repo.Name, *event.Issue.Number)
						if err != nil {
							log.Println(err)
							return
						}
						fakeEvent := &github.PullRequestEvent{
							Action:      ptrOfStr("opened"),
							Number:      event.Issue.Number,
							Repo:        event.Repo,
							Sender:      event.Issue.User,
							PullRequest: pr,
						}
						receiver.processPullRequest(fakeEvent)
					}
				}
			}
		}

		number = *event.Issue.Number
		sender = *event.Sender.Login
	default:
		return
	}

	pr, err := receiver.dbHelper.GetPR(number)
	if err != nil {
		log.Println(err)
		return
	}
	if !pr.Processed {
		return
	}
	if !pr.PendingReview {
		return
	}
	isOneMaintainer := false
	for _, maintainer := range pr.Maintainers {
		if maintainer == sender {
			isOneMaintainer = true
		}
	}
	if isOneMaintainer {
		log.Println("Maintainer responded in PR #" + strconv.Itoa(pr.Number))
		receiver.dbHelper.SetPRPendingReview(number, false)
	}
}