import PypiBase, { pypiGeneralParams } from './pypi-base.js'
import { parseClassifiers } from './pypi-helpers.js'

export default class PypiImplementation extends PypiBase {
  static category = 'platform-support'

  static route = this.buildRoute('pypi/implementation')

  static openApi = {
    '/pypi/implementation/{packageName}': {
      get: {
        summary: 'PyPI - Implementation',
        parameters: pypiGeneralParams,
      },
    },
  }

  static defaultBadgeData = { label: 'implementation' }

  static render({ implementations }) {
    return {
      message: implementations.sort().join(' | '),
      color: 'blue',
    }
  }

  async handle({ egg }, { pypiBaseUrl }) {
    const packageData = await this.fetch({ egg, pypiBaseUrl })

    let implementations = parseClassifiers(
      packageData,
      /^Programming Language :: Python :: Implementation :: (\S+)$/,
    )
    if (implementations.length === 0) {
      // Assume CPython.
      implementations = ['cpython']
    }

    return this.constructor.render({ implementations })
  }
}