import {defineField, defineType} from 'sanity'

export default defineType({
  name: 'changelogEntry',
  title: 'Changelog Entry',
  type: 'document',
  fields: [
    defineField({
      name: 'version',
      title: 'Version',
      type: 'string',
      description: 'e.g. v1.2.0',
      validation: (Rule) => Rule.required(),
    }),
    defineField({
      name: 'title',
      title: 'Title',
      type: 'string',
      validation: (Rule) => Rule.required().max(120),
    }),
    defineField({
      name: 'publishedAt',
      title: 'Published At',
      type: 'datetime',
      initialValue: () => new Date().toISOString(),
      validation: (Rule) => Rule.required(),
    }),
    defineField({
      name: 'tags',
      title: 'Tags',
      type: 'array',
      of: [
        {
          type: 'string',
          options: {
            list: [
              {title: 'Feature', value: 'feature'},
              {title: 'Fix', value: 'fix'},
              {title: 'Improvement', value: 'improvement'},
            ],
          },
        },
      ],
    }),
    defineField({
      name: 'body',
      title: 'Body',
      type: 'array',
      of: [
        {type: 'block'},
        {
          type: 'image',
          options: {hotspot: true},
          fields: [
            defineField({name: 'alt', title: 'Alt Text', type: 'string'}),
            defineField({name: 'caption', title: 'Caption', type: 'string'}),
          ],
        },
      ],
    }),
  ],
  orderings: [
    {
      title: 'Published Date, Newest',
      name: 'publishedAtDesc',
      by: [{field: 'publishedAt', direction: 'desc'}],
    },
  ],
  preview: {
    select: {
      title: 'title',
      version: 'version',
      publishedAt: 'publishedAt',
    },
    prepare({title, version, publishedAt}) {
      const date = publishedAt ? new Date(publishedAt).toLocaleDateString() : 'Draft'
      return {
        title: `${version} — ${title}`,
        subtitle: date,
      }
    },
  },
})