package plugin

import (
	"fmt"

	"github.com/mattermost/mattermost/server/public/model"
)

func (p *Plugin) ensureBot() error {
	const botUsername = "sentry"

	user, appErr := p.API.GetUserByUsername(botUsername)
	if appErr == nil && user != nil {
		if !user.IsBot {
			return fmt.Errorf("user @%s exists but is not a bot", botUsername)
		}
		p.botUserID = user.Id
		return nil
	}

	bot := &model.Bot{
		Username:    botUsername,
		DisplayName: "Sentry",
		Description: "Sentry notifications bot",
	}

	createdBot, appErr := p.API.CreateBot(bot)
	if appErr != nil {
		p.API.LogError("Failed to create Sentry bot", "error", appErr.Error())
		return appErr
	}

	p.botUserID = createdBot.UserId
	return nil
}

func (p *Plugin) getChannelForProject(project string) (string, error) {
	key := "sentry:project:" + project

	data, appErr := p.API.KVGet(key)
	if appErr != nil || data == nil {
		return "", appErr
	}

	return string(data), nil
}