const section = {
  anyOf: [
    {
      type: 'array',
      items: {
        type: 'string',
        lintable: true,
      },
      minItems: 1,
    },
    {
      type: 'array',
      minItems: 1,
      items: {
        type: 'object',
        required: ['heading', 'notes'],
        additionalProperties: false,
        properties: {
          heading: {
            type: 'string',
            lintable: true,
          },
          notes: {
            type: 'array',
            items: {
              type: 'string',
              lintable: true,
            },
            minItems: 1,
          },
        },
      },
    },
  ],
} as const

export default {
  type: 'object',
  required: ['date', 'sections'],
  properties: {
    intro: {
      type: 'string',
      lintable: true,
    },
    date: {
      type: 'string',
      format: 'date',
    },
    release_candidate: {
      type: 'boolean',
      default: false,
    },
    deprecated: {
      type: 'boolean',
      default: false,
    },
    sections: {
      type: 'object',
      minProperties: 1,
      additionalProperties: false,
      properties: [
        'bugs',
        'known_issues',
        'features',
        'changes',
        'deprecations',
        'security_fixes',
        'backups',
        'errata',
        'closing_down',
        'retired',
      ].reduce(
        (prev: Record<string, typeof section>, curr: string) => ({ ...prev, [curr]: section }),
        {},
      ),
    },
  },
} as const