import Joi from 'joi'
import { renderDateBadge } from '../date.js'
import { NotFound, pathParam, queryParam } from '../index.js'
import { optionalUrl, relativeUri } from '../validators.js'
import GitLabBase from './gitlab-base.js'
import { description, httpErrorsFor } from './gitlab-helper.js'

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

const queryParamSchema = Joi.object({
  ref: Joi.string(),
  gitlab_url: optionalUrl,
  path: relativeUri,
}).required()

const refText = `
ref can be filled with the name of a branch, tag or revision range of the repository.
`

const lastCommitDescription = description + refText

export default class GitlabLastCommit extends GitLabBase {
  static category = 'activity'

  static route = {
    base: 'gitlab/last-commit',
    pattern: ':project+',
    queryParamSchema,
  }

  static openApi = {
    '/gitlab/last-commit/{project}': {
      get: {
        summary: 'GitLab Last Commit',
        description: lastCommitDescription,
        parameters: [
          pathParam({
            name: 'project',
            example: 'gitlab-org/gitlab',
          }),
          queryParam({
            name: 'gitlab_url',
            example: 'https://gitlab.com',
          }),
          queryParam({
            name: 'ref',
            example: 'master',
          }),
          queryParam({
            name: 'path',
            example: 'README.md',
            schema: { type: 'string' },
            description: 'File path to resolve the last commit for.',
          }),
        ],
      },
    },
  }

  static defaultBadgeData = { label: 'last commit' }

  async fetch({ project, baseUrl, ref, path }) {
    // https://docs.gitlab.com/ee/api/commits.html#list-repository-commits
    return super.fetch({
      url: `${baseUrl}/api/v4/projects/${encodeURIComponent(
        project,
      )}/repository/commits`,
      options: { searchParams: { ref_name: ref, path, per_page: 1 } },
      schema,
      httpErrors: httpErrorsFor('project not found'),
    })
  }

  async handle(
    { project },
    { gitlab_url: baseUrl = 'https://gitlab.com', ref, path },
  ) {
    const data = await this.fetch({ project, baseUrl, ref, path })
    const [commit] = data

    if (!commit) throw new NotFound({ prettyMessage: 'no commits found' })

    return renderDateBadge(commit.committed_date)
  }
}