'use strict'

const Joi = require('@hapi/joi')
const { formatDate } = require('../text-formatters')
const { age: ageColor } = require('../color-formatters')
const { GithubAuthV3Service } = require('./github-auth-service')
const { documentation, errorMessagesFor } = require('./github-helpers')
const commonExampleAttrs = {
  keywords: ['latest'],
  documentation,
}

const schema = Joi.array()
  .items(
    Joi.object({
      commit: Joi.object({
        author: Joi.object({
          date: Joi.string().required(),
        }).required(),
      }).required(),
    }).required()
  )
  .required()

module.exports = class GithubLastCommit extends GithubAuthV3Service {
  static get category() {
    return 'activity'
  }

  static get route() {
    return {
      base: 'github/last-commit',
      pattern: ':user/:repo/:branch*',
    }
  }

  static get examples() {
    return [
      {
        title: 'GitHub last commit',
        pattern: ':user/:repo',
        namedParams: {
          user: 'google',
          repo: 'skia',
        },
        staticPreview: this.render({ commitDate: '2013-07-31T20:01:41Z' }),
        ...commonExampleAttrs,
      },
      {
        title: 'GitHub last commit (branch)',
        pattern: ':user/:repo/:branch',
        namedParams: {
          user: 'google',
          repo: 'skia',
          branch: 'infra/config',
        },
        staticPreview: this.render({ commitDate: '2013-07-31T20:01:41Z' }),
        ...commonExampleAttrs,
      },
    ]
  }

  static get defaultBadgeData() {
    return {
      label: 'last commit',
    }
  }

  static render({ commitDate }) {
    return {
      message: formatDate(commitDate),
      color: ageColor(Date.parse(commitDate)),
    }
  }

  async fetch({ user, repo, branch }) {
    return this._requestJson({
      url: `/repos/${user}/${repo}/commits`,
      options: { qs: { sha: branch } },
      schema,
      errorMessages: errorMessagesFor(),
    })
  }

  async handle({ user, repo, branch }) {
    const body = await this.fetch({ user, repo, branch })
    return this.constructor.render({ commitDate: body[0].commit.author.date })
  }
}