// Copyright 2019 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.

package action

import (
	"fmt"

	"code.gitea.io/gitea/models"
	"code.gitea.io/gitea/modules/log"
	"code.gitea.io/gitea/modules/notification/base"
)

type actionNotifier struct {
	base.NullNotifier
}

var (
	_ base.Notifier = &actionNotifier{}
)

// NewNotifier create a new actionNotifier notifier
func NewNotifier() base.Notifier {
	return &actionNotifier{}
}

func (a *actionNotifier) NotifyNewIssue(issue *models.Issue) {
	if err := issue.LoadPoster(); err != nil {
		log.Error("issue.LoadPoster: %v", err)
		return
	}
	if err := issue.LoadRepo(); err != nil {
		log.Error("issue.LoadRepo: %v", err)
		return
	}
	repo := issue.Repo

	if err := models.NotifyWatchers(&models.Action{
		ActUserID: issue.Poster.ID,
		ActUser:   issue.Poster,
		OpType:    models.ActionCreateIssue,
		Content:   fmt.Sprintf("%d|%s", issue.Index, issue.Title),
		RepoID:    repo.ID,
		Repo:      repo,
		IsPrivate: repo.IsPrivate,
	}); err != nil {
		log.Error("NotifyWatchers: %v", err)
	}
}

func (a *actionNotifier) NotifyNewPullRequest(pull *models.PullRequest) {
	if err := pull.LoadIssue(); err != nil {
		log.Error("pull.LoadIssue: %v", err)
		return
	}
	if err := pull.Issue.LoadRepo(); err != nil {
		log.Error("pull.Issue.LoadRepo: %v", err)
		return
	}
	if err := pull.Issue.LoadPoster(); err != nil {
		log.Error("pull.Issue.LoadPoster: %v", err)
		return
	}

	if err := models.NotifyWatchers(&models.Action{
		ActUserID: pull.Issue.Poster.ID,
		ActUser:   pull.Issue.Poster,
		OpType:    models.ActionCreatePullRequest,
		Content:   fmt.Sprintf("%d|%s", pull.Issue.Index, pull.Issue.Title),
		RepoID:    pull.Issue.Repo.ID,
		Repo:      pull.Issue.Repo,
		IsPrivate: pull.Issue.Repo.IsPrivate,
	}); err != nil {
		log.Error("NotifyWatchers: %v", err)
	}
}

func (a *actionNotifier) NotifyRenameRepository(doer *models.User, repo *models.Repository, oldName string) {
	if err := models.NotifyWatchers(&models.Action{
		ActUserID: doer.ID,
		ActUser:   doer,
		OpType:    models.ActionRenameRepo,
		RepoID:    repo.ID,
		Repo:      repo,
		IsPrivate: repo.IsPrivate,
		Content:   oldName,
	}); err != nil {
		log.Error("notify watchers: %v", err)
	} else {
		log.Trace("action.renameRepoAction: %s/%s", doer.Name, repo.Name)
	}
}