const gitea = require('../gitea-api')

const log = (msg) => {
    console.log('[issueBranchName]', msg)
}

module.exports = {
    exec: (req) => {
        if(req.headers['x-gitea-event'] !== 'issues') {
            return
        }
        const { issue, repository } = req.body
        const isBug = issue.labels.length && !!issue.labels.find(label => label.name === 'bug')
        const prefix = isBug ? 'bugfix' : 'feature'
        const branch = issue.title.replace(/[^a-z0-9\s]/gi, '')
            .replaceAll(' ', '-')
            .toLowerCase()
        const branchName = `${prefix}/ISS-${issue.number}-${branch}`

        log(`Created branch name ${branchName} in ${repository.full_name}`)

        issue.body = issue.body || ''

        let body
        if(issue.body.includes('> <code>')) {
            body = issue.body.replaceAll(/> <code>.+<\/code>/g, `> <code>${branchName}</code>`)
        }else {
            body = issue.body
            body += '\n\n'
            body += `> <code>${branchName}</code>`
        }

        const path = `/repos/${repository.full_name}/issues/${issue.number}`
        return gitea.patch(path, { body })
            .then(() => {})
            .catch(reason => reason)
    }

}