import { useQuery } from '@tanstack/react-query'
import { useEffect, useState } from 'react'
import { Helmet } from 'react-helmet-async'
import { useLocation, useNavigate } from 'react-router-dom'

import PrefetchLink from '@/components/PrefetchLink'
import FormField from '@/components/common/FormField'
import PageTitle from '@/components/common/PageTitle'
import Pagination from '@/components/common/Pagination'
import MainArea from '@/components/layout/MainArea'
import { SITE_TITLE } from '@/config'
import { fetchMaterialChanges } from '@/lib/materials'
import { materialsKeys } from '@/lib/queryKeys'
import { dateString, inputClass } from '@/lib/utils'

import type { FC, FormEvent } from 'react'


const MaterialHistoryPage: FC = () => {
  const location = useLocation ()
  const navigate = useNavigate ()
  const query = new URLSearchParams (location.search)

  const materialId = query.get ('material_id') ?? ''
  const tag = query.get ('tag') ?? ''
  const eventType = query.get ('event_type') ?? ''
  const page = Number (query.get ('page') ?? 1)
  const limit = Number (query.get ('limit') ?? 20)

  const [materialIdInput, setMaterialIdInput] = useState (materialId)
  const [tagInput, setTagInput] = useState (tag)
  const [eventTypeInput, setEventTypeInput] = useState (eventType)

  useEffect (() => {
    setMaterialIdInput (materialId)
    setTagInput (tag)
    setEventTypeInput (eventType)
  }, [eventType, materialId, tag])

  const { data, isLoading, isError } = useQuery ({
      queryKey: materialsKeys.changes ({
	  ...(materialId && { materialId }),
	  ...(tag && { tag }),
	  ...(eventType && { eventType }),
	  page,
	  limit }),
      queryFn: () => fetchMaterialChanges ({
	  ...(materialId && { materialId }),
	  ...(tag && { tag }),
	  ...(eventType && { eventType }),
	  page,
	  limit }) })

  const versions = data?.versions ?? []
  const totalPages = data ? Math.ceil (data.count / limit) : 0

  useEffect (() => {
    document.querySelector ('table')?.scrollIntoView ({ behavior: 'smooth' })
  }, [location.search])

  const handleSearch = (event: FormEvent) => {
    event.preventDefault ()

    const qs = new URLSearchParams ()
    if (materialIdInput.trim ())
      qs.set ('material_id', materialIdInput.trim ())
    if (tagInput.trim ())
      qs.set ('tag', tagInput.trim ())
    if (eventTypeInput.trim ())
      qs.set ('event_type', eventTypeInput.trim ())
    qs.set ('page', '1')
    qs.set ('limit', String (limit))
    navigate (`/materials/changes?${ qs.toString () }`)
  }

  return (
      <MainArea>
	<Helmet>
	  <title>{`素材履歴 | ${ SITE_TITLE }`}</title>
	</Helmet>

	<div className="space-y-5">
	  <div className="flex flex-wrap items-center justify-between gap-3">
	    <PageTitle>素材履歴</PageTitle>
	    <PrefetchLink
		to="/materials"
		className="text-sm text-sky-700 underline underline-offset-2 dark:text-sky-300">
	      素材一覧へ戻る
	    </PrefetchLink>
	  </div>

	  <form
	      onSubmit={handleSearch}
	      className="max-w-3xl rounded-lg border border-stone-200 bg-white p-4
			 text-stone-900 dark:border-stone-700 dark:bg-stone-900
			 dark:text-stone-100">
	    <div className="space-y-3">
	      <FormField label="素材 ID">
		{({ invalid }) => (
		    <input
			type="text"
			value={materialIdInput}
			onChange={e => setMaterialIdInput (e.target.value)}
			className={inputClass (invalid)}/>)}
	      </FormField>

	      <FormField label="タグ名">
		{({ invalid }) => (
		    <input
			type="text"
			value={tagInput}
			onChange={e => setTagInput (e.target.value)}
			className={inputClass (invalid)}/>)}
	      </FormField>

	      <FormField label="イベント">
		{({ invalid }) => (
		    <select
			value={eventTypeInput}
			onChange={e => setEventTypeInput (e.target.value)}
			className={inputClass (invalid)}>
		      <option value="">すべて</option>
		      <option value="create">create</option>
		      <option value="update">update</option>
		      <option value="discard">discard</option>
		      <option value="restore">restore</option>
		    </select>)}
	      </FormField>
	    </div>

	    <button
		type="submit"
		className="mt-4 rounded-full border border-stone-300 bg-white px-4 py-2
			   text-sm text-stone-900 hover:bg-stone-100 dark:border-stone-700
			   dark:bg-stone-900 dark:text-stone-100 dark:hover:bg-stone-800">
	      絞り込む
	    </button>
	  </form>

	  {isLoading
	   ? 'Loading...'
	   : isError
	   ? (
	      <p className="text-red-600 dark:text-red-300">
		素材履歴の取得に失敗しました．
	      </p>)
	   : (
	      <>
		<div className="overflow-x-auto">
		  <table className="w-full min-w-[1200px] table-fixed border-collapse">
		    <colgroup>
		      <col className="w-48"/>
		      <col className="w-32"/>
		      <col className="w-28"/>
		      <col className="w-24"/>
		      <col className="w-64"/>
		      <col className="w-64"/>
		      <col className="w-80"/>
		      <col className="w-80"/>
		      <col className="w-48"/>
		    </colgroup>

		    <thead className="border-b-2 border-black dark:border-white">
		      <tr>
			<th className="p-2 text-left">日時</th>
			<th className="p-2 text-left">event_type</th>
			<th className="p-2 text-left">素材 ID</th>
			<th className="p-2 text-left">版</th>
			<th className="p-2 text-left">タグ名</th>
			<th className="p-2 text-left">ファイル名</th>
			<th className="p-2 text-left">URL</th>
			<th className="p-2 text-left">export_path</th>
			<th className="p-2 text-left">操作者</th>
		      </tr>
		    </thead>

		    <tbody>
		      {versions.map (version => (
			  <tr
			      key={version.id}
			      className="even:bg-gray-100 dark:even:bg-gray-700">
			    <td className="p-2">{dateString (version.createdAt)}</td>
			    <td className="p-2">{version.eventType}</td>
			    <td className="p-2">
			      <PrefetchLink to={`/materials/${ version.materialId }`}>
				#{version.materialId}
			      </PrefetchLink>
			    </td>
			    <td className="p-2">{version.versionNo}</td>
			    <td className="p-2 break-all">{version.tagName}</td>
			    <td className="p-2 break-all">{version.fileFilename}</td>
			    <td className="p-2 break-all">{version.url}</td>
			    <td className="p-2 break-all">
			      {version.exportPathsJson.legacy_drive}
			    </td>
			    <td className="p-2">
			      {version.createdByUser
			       ? version.createdByUser.name || `#${ version.createdByUser.id }`
			       : 'bot 操作'}
			    </td>
			  </tr>))}
		    </tbody>
		  </table>
		</div>

		<Pagination page={page} totalPages={totalPages}/>
	      </>)}
	</div>
      </MainArea>)
}


export default MaterialHistoryPage