2026-07-19 00:03:11 +09:00
@@ -266,6 +266,44 @@ const value =
  value selection. Do not replace a clear ternary with `if` statements, and do
  not introduce immediately invoked functions just to avoid or reformat a
  ternary expression.
+- In TypeScript and TSX, multi-stage ternary expressions must make branch
+  boundaries explicit. Wrap each condition group in parentheses instead of
+  relying on indentation alone to show which `?` matches which `:`.
+- In TypeScript and TSX, wrap nested ternary expressions in parentheses. Do
+  not write flat vertical chains of `?` and `:` without explicit grouping.
+- In TypeScript and TSX, when a ternary condition contains `&&` or `||`, wrap
+  the whole condition in parentheses before `?`.
+- In TypeScript and TSX, if a ternary reaches three or more stages and still
+  reads poorly after explicit grouping, extract a helper function or use `if`
+  statements instead of keeping a flat multi-stage ternary.
+
+Bad:
+
+```ts
+row.skipReason === 'existing' || row.importStatus === 'skipped'
+? 'skipped'
+: Object.keys (row.validationErrors ?? { }).length > 0
+  || row.importStatus === 'failed'
+  || row.importStatus === 'created'
+? null
+: hasWarnings (row) || row.status === 'warning'
+? 'warning'
+: 'ready'
+```
+
+Good:
+
+```ts
+(row.skipReason === 'existing' || row.importStatus === 'skipped')
+? 'skipped'
+: ((Object.keys (row.validationErrors ?? { }).length > 0
+    || row.importStatus === 'failed'
+    || row.importStatus === 'created')
+   ? null
+   : ((hasWarnings (row) || row.status === 'warning')
+      ? 'warning'
+      : 'ready'))
+```
 - In TypeScript and TSX, do not write `let` followed by later `if` assignments
  when the value can be expressed as a single `const` initializer. Prefer
  `const` because it prevents accidental later reassignment.
@@ -55,7 +55,7 @@ class PostImportPreviewer
    source = row.symbolize_keys
    url = source[:url].to_s.strip
    normal_url = normalised_url(url)
-    source.merge(url_text: url, normal_url:)
+    source.merge(url_text: url, normal_url:, url_error: validate_url_safety(normal_url))
  end

  def preview_row row,
@@ -78,6 +78,9 @@ class PostImportPreviewer

    validation_errors = {}
    validation_errors[:url] = ['URL が不正です．'] if normal_url.blank?
+    if row[:url_error].present?
+      validation_errors[:url] = [row[:url_error]]
+    end
    if normal_url.present? && url_counts[normal_url].to_i > 1
      validation_errors[:url] = ['URL が重複しています．']
    end
@@ -206,8 +209,7 @@ class PostImportPreviewer
      add_field_warning!(warnings, 'thumbnail_base', THUMBNAIL_FETCH_WARNING)
    end
    { data:, warnings: }
-  rescue Preview::UrlSafety::UnsafeUrl,
-         Preview::HttpFetcher::FetchFailed,
+  rescue Preview::HttpFetcher::FetchFailed,
         Preview::HttpFetcher::ResponseTooLarge => e
    Rails.logger.info(
        "post_import_metadata_fetch_failure "\
@@ -252,6 +254,7 @@ class PostImportPreviewer
  def preload_metadata! prepared_rows, fetch_metadata, metadata_cache, existing_posts, url_counts
    urls = prepared_rows.filter_map { |row|
      next unless row[:normal_url].present?
+      next if row[:url_error].present?
      next unless should_fetch_metadata?(fetch_metadata, row[:source_row].to_i)
      next if url_counts[row[:normal_url]].to_i > 1
      next if existing_posts.key?(row[:normal_url])
@@ -339,12 +342,22 @@ class PostImportPreviewer
  def should_apply_metadata_to_row? row, fetch_metadata, existing_posts, url_counts
    normal_url = row[:normal_url]
    return false if normal_url.blank?
+    return false if row[:url_error].present?
    return false if url_counts[normal_url].to_i > 1
    return false if existing_posts.key?(normal_url)

    should_fetch_metadata?(fetch_metadata, row[:source_row].to_i)
  end

+  def validate_url_safety normal_url
+    return nil if normal_url.blank?
+
+    Preview::UrlSafety.validate(normal_url)
+    nil
+  rescue Preview::UrlSafety::UnsafeUrl => e
+    e.message
+  end
+
  def apply_metadata! attributes, provenance, tag_sources, metadata
    metadata.each do |field, value|
      if field == 'tags'
@@ -46,6 +46,13 @@ class PostImportRunner
    end

    { source_row: row['source_row'], status: 'failed', errors: e.record.errors.to_hash }
+  rescue ActiveRecord::RecordNotUnique
+    existing_post = existing_post_for_race(row)
+    raise unless existing_post
+
+    { source_row: row['source_row'],
+      status: 'skipped',
+      existing_post_id: existing_post.id }
  rescue Tag::NicoTagNormalisationError
    { source_row: row['source_row'],
      status: 'failed',
@@ -66,8 +73,10 @@ class PostImportRunner
      errors: { base: ['登録中にエラーが発生しました．'] } }
  end

-  def existing_post_for_race row, record
-    return nil unless record.errors.of_kind?(:url, :taken)
+  def existing_post_for_race row, record = nil
+    if record && !(record.errors.of_kind?(:url, :taken))
+      return nil
+    end

    normal_url = PostUrlNormaliser.normalise(row['url'])
    return nil if normal_url.blank?
@@ -129,6 +129,10 @@ pass or the remaining failure is clearly blocked.
  it is JSX- or React-specific.
 - Preserve compact TSX expression shapes such as inline ternary branches and
  closing `</div>)` forms when nearby code uses them.
+- Multi-stage ternary expressions must use explicit parentheses for each
+  condition group and nested ternary branch. Do not rely on indentation alone
+  to show `?` / `:` pairing, and extract a helper or `if` when a three-stage
+  ternary still reads poorly after grouping.
 - Treat TypeScript and TSX formatting rules as hard constraints, not
  preferences. Before finishing a TypeScript or TSX edit, inspect the edited
  hunks for closing `)`, `]`, and `}` placement and fix violations instead of
@@ -2,11 +2,10 @@ import DateTimeField from '@/components/common/DateTimeField'
 import FormField from '@/components/common/FormField'
 import { Button } from '@/components/ui/button'

-import type { FC, ReactNode } from 'react'
+import type { FC } from 'react'

 type Props = {
    disabled?:                boolean
-    labelAddon?:              ReactNode
    originalCreatedFrom:      string | null
    setOriginalCreatedFrom:   (x: string | null) => void
    originalCreatedBefore:    string | null
@@ -16,19 +15,12 @@ type Props = {

 const PostOriginalCreatedTimeField: FC<Props> = (
    { disabled,
-      labelAddon,
      originalCreatedFrom,
      setOriginalCreatedFrom,
      originalCreatedBefore,
      setOriginalCreatedBefore,
      errors }: Props) => (
-    <FormField
-	label={
-	    <span className="flex items-center gap-2">
-	      <span>オリジナルの作成日時</span>
-	      {labelAddon}
-	    </span>}
-	messages={errors}>
+    <FormField label="オリジナルの作成日時" messages={errors}>
      {({ describedBy, invalid }) => (
 	  <>
 	    <div className="my-1 flex flex-col gap-2 sm:flex-row sm:items-start">
@@ -1,22 +0,0 @@
-import type { FC, ReactNode } from 'react'
-
-type Props = {
-    summary: ReactNode
-    actions: ReactNode }
-
-const PageActionFooter: FC<Props> = ({ summary, actions }) => (
-    <div
-	className="shrink-0 border-t bg-white/95 p-4 backdrop-blur
-		   dark:border-neutral-700 dark:bg-neutral-950/95">
-      <div className="mx-auto flex max-w-6xl flex-col gap-3 md:flex-row
-		      md:items-center md:justify-between">
-	<div className="flex flex-wrap items-center gap-2 text-sm">
-	  {summary}
-	</div>
-	<div className="flex flex-col gap-2 sm:flex-row">
-	  {actions}
-	</div>
-      </div>
-    </div>)
-
-export default PageActionFooter
@@ -2,9 +2,7 @@ import PostOriginalCreatedTimeField from '@/components/PostOriginalCreatedTimeFi
 import FieldError from '@/components/common/FieldError'
 import FieldWarning from '@/components/common/FieldWarning'
 import FormField from '@/components/common/FormField'
-import PostImportStatusBadge from '@/components/posts/import/PostImportStatusBadge'
 import ThumbnailPreview from '@/components/posts/import/ThumbnailPreview'
-import { effectivePostImportStatus } from '@/components/posts/import/postImportRowStatus'
 import { Button } from '@/components/ui/button'
 import { Dialog,
 	 DialogContent,
@@ -17,7 +15,7 @@ import { inputClass } from '@/lib/utils'
 import type { FC } from 'react'
 import { useEffect, useState } from 'react'

-import type { PostImportOrigin,
+import type { PostImportResetSnapshot,
 	      PostImportRow } from '@/lib/postImportSession'

 type Draft = {
@@ -36,37 +34,11 @@ type Props = {
    messageRow?:   PostImportRow | null
    saving:        boolean
    onOpenChange:  (open: boolean) => void
-    onSave:        (draft: Draft) => Promise<boolean> }
-
-const originOf = (
-    row:   PostImportRow,
-    field: string,
-): PostImportOrigin =>
-    row.provenance[field] ?? 'automatic'
-
-const changedOrigin = (
-    changed: boolean,
-    row:     PostImportRow,
-    field:   string,
-): PostImportOrigin =>
-    changed ? 'manual' : originOf (row, field)
-
-const originalCreatedOrigin = (
-    row:           PostImportRow,
-    originalDraft: Draft,
-    draft:         Draft,
-): PostImportOrigin => {
-    const changed =
-	originalDraft.originalCreatedFrom !== draft.originalCreatedFrom
-	|| originalDraft.originalCreatedBefore !== draft.originalCreatedBefore
-    if (changed)
-      return 'manual'
-
-    const manualOrigin =
-	originOf (row, 'originalCreatedFrom') === 'manual'
-	|| originOf (row, 'originalCreatedBefore') === 'manual'
-    return manualOrigin ? 'manual' : 'automatic'
-}
+    onSave:        (
+	payload: { draft: Draft
+		   resetRequested: boolean
+		   resetSnapshot: PostImportResetSnapshot },
+    ) => Promise<boolean> }

 const buildDraft = (row: PostImportRow): Draft => ({
    url: row.url,
@@ -108,9 +80,6 @@ const PostImportRowDialog: FC<Props> = (
      return null

    const displayRow = messageRow ?? row
-    const originalDraft = buildDraft (row)
-    const fieldOrigin = (field: keyof Draft): PostImportOrigin =>
-	changedOrigin (draft[field] !== originalDraft[field], row, field)

    const update = <Key extends keyof Draft,> (
 	key:   Key,
@@ -121,7 +90,12 @@ const PostImportRowDialog: FC<Props> = (
    }

    const save = async () => {
-	if (await onSave (draft))
+	if (
+	    await onSave ({
+		draft,
+		resetRequested: false,
+		resetSnapshot: row.resetSnapshot })
+	)
 	  onOpenChange (false)
    }

@@ -142,16 +116,12 @@ const PostImportRowDialog: FC<Props> = (
 		  <ThumbnailPreview
 		      url={draft.thumbnailBase}
 		      className="h-28 w-28"/>
-		  <div className="flex flex-wrap gap-2">
-		    <PostImportStatusBadge value={effectivePostImportStatus (displayRow)}/>
-		  </div>
 		</div>

 		<div className="space-y-4">
 		  <DialogTextField
 		      label="URL"
 		      value={draft.url}
-		      origin={fieldOrigin ('url')}
 		      warnings={displayRow.fieldWarnings.url}
 		      errors={groupedMessages (displayRow.validationErrors.url,
 					      displayRow.importErrors?.url)}
@@ -159,7 +129,6 @@ const PostImportRowDialog: FC<Props> = (
 		  <DialogTextField
 		      label="タイトル"
 		      value={draft.title}
-		      origin={fieldOrigin ('title')}
 		      warnings={displayRow.fieldWarnings.title}
 		      errors={groupedMessages (displayRow.validationErrors.title,
 					      displayRow.importErrors?.title)}
@@ -167,7 +136,6 @@ const PostImportRowDialog: FC<Props> = (
 		  <DialogTextField
 		      label="サムネール基底 URL"
 		      value={draft.thumbnailBase}
-		      origin={fieldOrigin ('thumbnailBase')}
 		      warnings={displayRow.fieldWarnings.thumbnailBase}
 		      errors={groupedMessages (
 			  displayRow.validationErrors.thumbnailBase,
@@ -175,10 +143,6 @@ const PostImportRowDialog: FC<Props> = (
 		      )}
 		      onChange={value => update ('thumbnailBase', value)}/>
 		  <PostOriginalCreatedTimeField
-		      labelAddon={
-			  <PostImportStatusBadge
-			      value={originalCreatedOrigin (row, originalDraft, draft)}/>
-		      }
 		      originalCreatedFrom={draft.originalCreatedFrom || null}
 		      setOriginalCreatedFrom={value => update ('originalCreatedFrom', value ?? '')}
 		      originalCreatedBefore={draft.originalCreatedBefore || null}
@@ -194,7 +158,6 @@ const PostImportRowDialog: FC<Props> = (
 		  <DialogTextField
 		      label="動画時間"
 		      value={draft.duration}
-		      origin={fieldOrigin ('duration')}
 		      errors={groupedMessages (
 			  displayRow.validationErrors.duration,
 			  displayRow.validationErrors.videoMs,
@@ -205,7 +168,6 @@ const PostImportRowDialog: FC<Props> = (
 		  <DialogAreaField
 		      label="タグ"
 		      value={draft.tags}
-		      origin={fieldOrigin ('tags')}
 		      warnings={displayRow.fieldWarnings.tags}
 		      errors={groupedMessages (displayRow.validationErrors.tags,
 					      displayRow.importErrors?.tags)}
@@ -213,7 +175,6 @@ const PostImportRowDialog: FC<Props> = (
 		  <DialogTextField
 		      label="親投稿"
 		      value={draft.parentPostIds}
-		      origin={fieldOrigin ('parentPostIds')}
 		      errors={groupedMessages (
 			  displayRow.validationErrors.parentPostIds,
 			  displayRow.importErrors?.parentPostIds,
@@ -230,7 +191,15 @@ const PostImportRowDialog: FC<Props> = (
 	      <Button
 		  type="button"
 		  variant="outline"
-		  onClick={() => setDraft (buildResetDraft (row))}>
+		  onClick={async () => {
+		      const resetDraft = buildResetDraft (row)
+		      setDraft (resetDraft)
+		      if (await onSave ({
+			  draft: resetDraft,
+			  resetRequested: true,
+			  resetSnapshot: row.resetSnapshot }))
+			onOpenChange (false)
+		  }}>
 		変更をリセット
 	      </Button>
 	      <Button
@@ -251,15 +220,14 @@ const PostImportRowDialog: FC<Props> = (
 }

 const DialogTextField = (
-    { label, value, origin, warnings, errors, onChange }: {
+    { label, value, warnings, errors, onChange }: {
 	label:    string
 	value:    string
-	origin:   PostImportOrigin
 	warnings?: string[]
 	errors?:   string[]
 	onChange: (value: string) => void },
 ) => (
-    <FormField label={<DialogLabel label={label} origin={origin}/>} messages={errors}>
+    <FormField label={label} messages={errors}>
      {({ describedBy, invalid }) => (
 	  <>
 	    <input
@@ -273,15 +241,14 @@ const DialogTextField = (
    </FormField>)

 const DialogAreaField = (
-    { label, value, origin, warnings, errors, onChange }: {
+    { label, value, warnings, errors, onChange }: {
 	label:    string
 	value:    string
-	origin:   PostImportOrigin
 	warnings?: string[]
 	errors?:   string[]
 	onChange: (value: string) => void },
 ) => (
-    <FormField label={<DialogLabel label={label} origin={origin}/>} messages={errors}>
+    <FormField label={label} messages={errors}>
      {({ describedBy, invalid }) => (
 	  <>
 	    <textarea
@@ -295,14 +262,4 @@ const DialogAreaField = (
 	  </>)}
    </FormField>)

-const DialogLabel = (
-    { label, origin }: {
-	label:   string
-	origin:  PostImportOrigin },
-) => (
-    <span className="flex items-center gap-2">
-      <span>{label}</span>
-      <PostImportStatusBadge value={origin}/>
-    </span>)
-
 export default PostImportRowDialog
@@ -3,7 +3,7 @@ import { cn } from '@/lib/utils'

 import PostImportStatusBadge from '@/components/posts/import/PostImportStatusBadge'
 import ThumbnailPreview from '@/components/posts/import/ThumbnailPreview'
-import { effectivePostImportStatus } from '@/components/posts/import/postImportRowStatus'
+import { displayPostImportStatus } from '@/components/posts/import/postImportRowStatus'
 import { importPanelToneForRow } from '@/components/posts/import/postImportTone'

 import type { FC } from 'react'
@@ -14,14 +14,6 @@ type Props = {
    row:     PostImportRow
    onEdit:  () => void }

-const summaryError = (row: PostImportRow): string | null => {
-    const validation = Object.values (row.validationErrors ?? { }).flat ()[0]
-    if (validation)
-      return validation
-
-    return Object.values (row.importErrors ?? { }).flat ()[0] ?? null
-}
-
 const summaryWarning = (row: PostImportRow): string | null =>
    Object.values (row.fieldWarnings ?? { }).flat ()[0]
    ?? row.baseWarnings?.[0]
@@ -34,9 +26,8 @@ const summaryDate = (row: PostImportRow): string =>


 const PostImportRowSummary: FC<Props> = ({ row, onEdit }) => {
-    const error = summaryError (row)
-    const warning = error == null ? summaryWarning (row) : null
-    const displayStatus = effectivePostImportStatus (row)
+    const warning = summaryWarning (row)
+    const displayStatus = displayPostImportStatus (row)

    return (
 	<>
@@ -71,13 +62,9 @@ const PostImportRowSummary: FC<Props> = ({ row, onEdit }) => {
 		  <div className="text-xs text-amber-700 dark:text-amber-200">
 		    {warning}
 		  </div>)}
-	      {error && (
-		  <div className="text-xs text-red-700 dark:text-red-200">
-		    {error}
-		  </div>)}
 	    </div>
 	    <div className="space-y-1">
-	      <PostImportStatusBadge value={displayStatus}/>
+	      {displayStatus != null && <PostImportStatusBadge value={displayStatus}/>}
 	    </div>
 	    <div className="flex justify-end">
 	      <Button
@@ -107,12 +94,8 @@ const PostImportRowSummary: FC<Props> = ({ row, onEdit }) => {
 		  {row.url}
 		</div>
 		<div className="flex flex-wrap gap-2">
-		  <PostImportStatusBadge value={displayStatus}/>
+		  {displayStatus != null && <PostImportStatusBadge value={displayStatus}/>}
 		</div>
-		{error && (
-		    <div className="text-xs text-red-700 dark:text-red-200">
-		      {error}
-		    </div>)}
 		{warning && (
 		    <div className="text-xs text-amber-700 dark:text-amber-200">
 		      {warning}
@@ -11,22 +11,12 @@ type Props = {
 const LABELS: Record<PostImportBadgeValue, string> = {
    ready: '登録可能',
    warning: '警告',
-    error: '要修正',
-    created: '登録済み',
-    skipped: 'スキップ',
-    failed: '失敗',
-    automatic: '自動取得',
-    manual: '手修正' }
+    skipped: 'スキップ' }

 const TONES: Record<PostImportBadgeValue, StatusBadgeTone> = {
    ready: 'ready',
    warning: 'warning',
-    error: 'danger',
-    created: 'info',
-    skipped: 'skipped',
-    failed: 'danger',
-    automatic: 'default',
-    manual: 'manual' }
+    skipped: 'skipped' }


 const PostImportStatusBadge: FC<Props> = ({ value }) => (
@@ -1,37 +1,29 @@
 import type { PostImportRow } from '@/lib/postImportSession'

-export type PostImportEffectiveStatus =
-    'created'
-    | 'error'
-    | 'failed'
-    | 'ready'
-    | 'skipped'
-    | 'warning'
+export type PostImportDisplayStatus = 'ready' | 'skipped' | 'warning'

-export type PostImportBadgeValue =
-    PostImportEffectiveStatus
-    | 'automatic'
-    | 'manual'
+export type PostImportBadgeValue = PostImportDisplayStatus

 const hasWarnings = (row: PostImportRow): boolean =>
    Object.values (row.fieldWarnings ?? { }).some (_1 => _1.length > 0)
    || row.baseWarnings.length > 0

-export const effectivePostImportStatus = (
+export const displayPostImportStatus = (
    row: PostImportRow,
-): PostImportEffectiveStatus => {
-    if (Object.keys (row.validationErrors ?? { }).length > 0 || row.status === 'error')
-      return 'error'
+): PostImportDisplayStatus | null => {
+    const skipped =
+	row.skipReason === 'existing'
+	|| row.importStatus === 'skipped'
+    const hidden =
+	Object.keys (row.validationErrors ?? { }).length > 0
+	|| row.importStatus === 'failed'
+	|| row.importStatus === 'created'

-    switch (row.importStatus)
-      {
-      case 'created':
-      case 'skipped':
-      case 'failed':
-	return row.importStatus
-      default:
+    if (skipped)
+      return 'skipped'
+    if (hidden)
+      return null
    return hasWarnings (row) || row.status === 'warning'
 	? 'warning'
 	: 'ready'
 }
-}
@@ -1,4 +1,4 @@
-import { effectivePostImportStatus } from '@/components/posts/import/postImportRowStatus'
+import { displayPostImportStatus } from '@/components/posts/import/postImportRowStatus'

 import type { PostImportRow } from '@/lib/postImportSession'

@@ -33,4 +33,4 @@ export const importPanelToneClass = (
 }

 export const importPanelToneForRow = (row: PostImportRow): string[] =>
-    importPanelToneClass (effectivePostImportStatus (row))
+    importPanelToneClass (displayPostImportStatus (row) ?? 'ready')
@@ -7,18 +7,14 @@ const hasSkipReason = (row: PostImportRow): boolean =>
 const hasValidationErrors = (row: PostImportRow): boolean =>
    Object.keys (row.validationErrors ?? { }).length > 0

-const rowChanged = (
-    previous: PostImportRow,
-    next:     PostImportRow,
-): boolean =>
-    previous.url !== next.url
-    || JSON.stringify (previous.attributes) !== JSON.stringify (next.attributes)
-    || JSON.stringify (previous.provenance) !== JSON.stringify (next.provenance)
-    || JSON.stringify (previous.tagSources ?? { }) !== JSON.stringify (next.tagSources ?? { })
-
 const buildResetSnapshot = (row: PostImportRow) => ({
    url: row.url,
-    attributes: row.attributes })
+    attributes: { ...row.attributes },
+    provenance: { ...row.provenance },
+    tagSources: {
+	automatic: row.tagSources?.automatic ?? '',
+	manual: row.tagSources?.manual ?? '' },
+    metadataUrl: row.metadataUrl })


 export const processableImportRows = (rows: PostImportRow[]): PostImportRow[] =>
@@ -43,23 +39,14 @@ export const reviewSummaryCounts = (rows: PostImportRow[]) => ({
    submittable: rows.filter (row =>
 	creatableImportRows ([row]).length > 0
 	&& !(hasValidationErrors (row))).length,
-    invalid: rows.filter (row => hasValidationErrors (row)).length,
    skipPlanned: rows.filter (row =>
-	hasSkipReason (row)
-	&& !(hasValidationErrors (row))
-	&& row.importStatus !== 'created').length,
-    created: rows.filter (row => row.importStatus === 'created').length,
-    failed: rows.filter (row => row.importStatus === 'failed').length })
+	processableImportRows ([row]).length > 0
+	&& hasSkipReason (row)).length })


 export const resultSummaryCounts = (rows: PostImportRow[]) =>
    rows.reduce (
 	(counts, row) => {
-	    if (hasValidationErrors (row))
-	      {
-		++counts.invalid
-		return counts
-	      }
 	    if (row.importStatus === 'created')
 	      {
 		++counts.created
@@ -74,7 +61,7 @@ export const resultSummaryCounts = (rows: PostImportRow[]) =>
 	      ++counts.failed
 	    return counts
 	},
-	{ created: 0, skipped: 0, failed: 0, invalid: 0 })
+	{ created: 0, skipped: 0, failed: 0 })


 export const mergeValidatedImportRows = (
@@ -83,7 +70,11 @@ export const mergeValidatedImportRows = (
 ): PostImportRow[] => {
    const validatedMap = new Map (validated.map (row => [row.sourceRow, row]))
    return current.map (previous => {
-	if (previous.importStatus === 'created')
+	if (
+	    previous.importStatus === 'created'
+	    || previous.importStatus === 'skipped'
+	    || previous.importStatus === 'failed'
+	)
 	  return previous

 	const row = validatedMap.get (previous.sourceRow)
@@ -124,59 +115,6 @@ export const mergeValidatedImportRows = (
 }


-export const mergePreviewImportRows = (
-    current: PostImportRow[],
-    preview: PostImportRow[],
-): PostImportRow[] => {
-    const currentMap = new Map (current.map (row => [row.sourceRow, row]))
-    return preview.map (row => {
-	const previous = currentMap.get (row.sourceRow)
-	if (previous == null)
-	  return row
-	if (previous.importStatus === 'created')
-	  return previous
-
-	const mergedAttributes = { ...row.attributes }
-	const mergedProvenance = { ...row.provenance }
-
-	for (const [field, origin] of Object.entries (previous.provenance))
-	  {
-	    if (origin !== 'manual' || field === 'url')
-	      continue
-	    if (field in previous.attributes)
-	      mergedAttributes[field] = previous.attributes[field]
-	    mergedProvenance[field] = 'manual'
-	  }
-
-	const mergedTagSources =
-	    previous.provenance.tags === 'manual'
-	    ? {
-		automatic: row.tagSources?.automatic ?? '',
-		manual: previous.tagSources?.manual ?? String (previous.attributes.tags ?? '') }
-	    : row.tagSources
-
-	const nextRow = {
-	    ...row,
-	    attributes: mergedAttributes,
-	    provenance: mergedProvenance,
-	    tagSources: mergedTagSources,
-	    skipReason: row.skipReason,
-	    existingPostId: row.existingPostId,
-	    resetSnapshot: row.resetSnapshot,
-	    createdPostId: previous.createdPostId,
-	    importStatus: previous.importStatus,
-	    importErrors: previous.importErrors }
-
-	if (rowChanged (previous, nextRow))
-	  {
-	    nextRow.importStatus = 'pending'
-	    nextRow.importErrors = undefined
-	  }
-	return nextRow
-    })
-}
-
-
 export const mergeImportResults = (
    rows:    PostImportRow[],
    results: PostImportResultRow[],
@@ -193,13 +131,15 @@ export const mergeImportResults = (
 	    return {
 		...row,
 		importStatus: 'created',
-		createdPostId: result.post?.id,
+		skipReason: undefined,
+		createdPostId: result.post.id,
 		existingPostId: undefined,
 		importErrors: result.errors }
 	  case 'skipped':
 	    return {
 		...row,
 		importStatus: 'skipped',
+		skipReason: 'existing',
 		createdPostId: undefined,
 		existingPostId: result.existingPostId,
 		importErrors: result.errors }
@@ -207,6 +147,7 @@ export const mergeImportResults = (
 	    return {
 		...row,
 		importStatus: 'failed',
+		skipReason: undefined,
 		createdPostId: undefined,
 		existingPostId: undefined,
 		importErrors: result.errors }
@@ -150,10 +150,27 @@ const sanitiseResetSnapshot = (value: unknown): PostImportResetSnapshot | null =
    if (!(Object.values (value.attributes).every (entry =>
 	typeof entry === 'string' || typeof entry === 'number')))
      return null
+    if (!(isPlainObject (value.provenance)))
+      return null
+    if (!(hasOnlyKeys (value.provenance, PROVENANCE_KEYS)))
+      return null
+    if (!(Object.values (value.provenance).every (origin => isValidOrigin (origin))))
+      return null
+    if (!(isPlainObject (value.tagSources)))
+      return null
+    if (!(hasOnlyKeys (value.tagSources, TAG_SOURCE_KEYS)))
+      return null
+    if (!(Object.values (value.tagSources).every (_1 => typeof _1 === 'string')))
+      return null
+    if (value.metadataUrl != null && typeof value.metadataUrl !== 'string')
+      return null

    return {
 	url: value.url,
-	attributes: value.attributes as Record<string, string | number> }
+	attributes: value.attributes as Record<string, string | number>,
+	provenance: value.provenance as Record<string, PostImportOrigin>,
+	tagSources: value.tagSources as Record<PostImportOrigin, string>,
+	metadataUrl: value.metadataUrl as string | undefined }
 }


@@ -11,7 +11,10 @@ export type PostImportAttributeValue = string | number

 export type PostImportResetSnapshot = {
    url:         string
-    attributes: Record<string, PostImportAttributeValue> }
+    attributes:  Record<string, PostImportAttributeValue>
+    provenance:  Record<string, PostImportOrigin>
+    tagSources:  Record<PostImportOrigin, string>
+    metadataUrl?: string }

 export type PostImportRow = {
    sourceRow:         number
@@ -31,11 +34,20 @@ export type PostImportRow = {
    createdPostId?:    number
    importStatus?:     PostImportStatus }

-export type PostImportResultRow = {
+export type PostImportResultRow =
+    | {
 	sourceRow: number
-    status:         PostImportResultStatus
-    post?:          { id: number }
-    existingPostId?: number
+	status:    'created'
+	post:      { id: number }
+	errors?:   Record<string, string[]> }
+    | {
+	sourceRow:      number
+	status:         'skipped'
+	existingPostId: number
+	errors?:        Record<string, string[]> }
+    | {
+	sourceRow: number
+	status:    'failed'
 	errors?:   Record<string, string[]> }

 export type PostImportSession = {
@@ -8,7 +8,7 @@ import PageTitle from '@/components/common/PageTitle'
 import PrefetchLink from '@/components/PrefetchLink'
 import MainArea from '@/components/layout/MainArea'
 import PostImportStatusBadge from '@/components/posts/import/PostImportStatusBadge'
-import { effectivePostImportStatus } from '@/components/posts/import/postImportRowStatus'
+import { displayPostImportStatus } from '@/components/posts/import/postImportRowStatus'
 import { importPanelToneClass } from '@/components/posts/import/postImportTone'
 import PostImportSummaryChip from '@/components/posts/import/PostImportSummaryChip'
 import { Button } from '@/components/ui/button'
@@ -35,9 +35,8 @@ import type { User } from '@/types'

 type Props = { user: User | null }

-const rowMessages = (row: PostImportRow): string[] => [
-    ...Object.values (row.validationErrors ?? { }).flat (),
-    ...Object.values (row.importErrors ?? { }).flat ()]
+const rowMessages = (row: PostImportRow): string[] =>
+    Object.values (row.importErrors ?? { }).flat ()


 const PostImportResultPage: FC<Props> = ({ user }) => {
@@ -94,15 +93,22 @@ const PostImportResultPage: FC<Props> = ({ user }) => {
 	    const validatedRows = mergeValidatedImportRows (
 		pendingRows,
 		initialisePreviewRows (validated.rows))
-	    setSession (current =>
-		current
-		? { ...current, rows: validatedRows }
-		: current)
+	    const nextSession = {
+		...session,
+		rows: validatedRows,
+		repairMode: 'failed' as const }
+	    setSession (nextSession)
 	    const target = validatedRows.find (_1 => _1.sourceRow === sourceRow)
 	    if (target == null)
 	      return
 	    if (Object.keys (target.validationErrors ?? { }).length > 0)
+	      {
+		const saved = savePostImportSession (sessionId, nextSession, message =>
+		    toast ({ title: '取込状態を保存できませんでした', description: message }))
+		if (saved)
+		  navigate (`/posts/import/${ sessionId }/review?edit=${ sourceRow }`)
 		return
+	      }

 	    const result = await apiPost<{
 		created: number
@@ -174,36 +180,37 @@ const PostImportResultPage: FC<Props> = ({ user }) => {
 	    <div className="rounded-lg border bg-white p-4 dark:border-neutral-700
 			    dark:bg-neutral-900">
 	      <div className="flex flex-wrap gap-2">
-		<PostImportSummaryChip label="登録成功" value={counts.created} badge="created"/>
+		<PostImportSummaryChip label="登録成功" value={counts.created}/>
 		<PostImportSummaryChip label="スキップ" value={counts.skipped} badge="skipped"/>
-		<PostImportSummaryChip label="失敗" value={counts.failed} badge="failed"/>
-		<PostImportSummaryChip label="要修正" value={counts.invalid} badge="error"/>
+		<PostImportSummaryChip label="失敗" value={counts.failed}/>
 	      </div>
 	    </div>

 	    <div className="space-y-3">
 	      {session.rows.map (row => {
-		  const displayStatus = effectivePostImportStatus (row)
-		  const canEdit =
-		      Object.keys (row.validationErrors).length > 0
-		      || row.importStatus === 'failed'
+		  const displayStatus = displayPostImportStatus (row)
+		  const canEdit = row.importStatus === 'failed'
 		  const canRetry =
-		      row.importStatus === 'created'
-		      ? false
-		      : row.importStatus === 'failed'
+		      row.importStatus === 'failed'
 		      && Object.keys (row.validationErrors).length === 0
+		  const panelStatus =
+		      row.importStatus === 'created'
+		      ? 'created'
+		      : (row.importStatus === 'failed'
+			 ? 'failed'
+			 : displayStatus ?? 'ready')
 		  return (
 		      <div
 			  key={row.sourceRow}
 			  className={[
 			      'rounded-lg border p-4',
-			      ...importPanelToneClass (displayStatus)].join (' ')}>
+			      ...importPanelToneClass (panelStatus)].join (' ')}>
 		    <div className="flex flex-col gap-3 md:flex-row md:items-start
 				    md:justify-between">
 		      <div className="space-y-2">
 			<div className="flex flex-wrap items-center gap-2">
 			  <span className="text-sm font-medium">行 {row.sourceRow}</span>
-			  <PostImportStatusBadge value={displayStatus}/>
+			  {displayStatus != null && <PostImportStatusBadge value={displayStatus}/>}
 			</div>
 			<div className="text-sm text-neutral-700 dark:text-neutral-200">
 			  {String (row.attributes.title ?? '') || row.url}
@@ -6,7 +6,6 @@ import { useNavigate,

 import PageTitle from '@/components/common/PageTitle'
 import MainArea from '@/components/layout/MainArea'
-import PageActionFooter from '@/components/posts/import/PageActionFooter'
 import PostImportRowDialog from '@/components/posts/import/PostImportRowDialog'
 import PostImportRowSummary from '@/components/posts/import/PostImportRowSummary'
 import PostImportStatusBadge from '@/components/posts/import/PostImportStatusBadge'
@@ -120,57 +119,35 @@ const PostImportReviewPage: FC<Props> = ({ user }) => {
 	setSession (current =>
 	    current ? { ...current, rows: nextRows } : current)

-    const saveDraft = async (draft: Draft): Promise<boolean> => {
+    const saveDraft = async (
+	{ draft, resetRequested, resetSnapshot }: {
+	    draft:            Draft
+	    resetRequested:   boolean
+	    resetSnapshot:    PostImportRow['resetSnapshot'] },
+    ): Promise<boolean> => {
 	if (session == null)
 	  return false
 	if (editingRow == null)
 	  return false

 	const urlChanged = draft.url !== editingRow.url
-	const nextProvenance = { ...editingRow.provenance }
-	const nextAttributes = { ...editingRow.attributes }
-	const nextTagSources = {
-	    automatic: editingRow.tagSources?.automatic ?? '',
-	    manual: editingRow.tagSources?.manual ?? '' }
-	const draftFields = [
-	    ['title', draft.title],
-	    ['thumbnailBase', draft.thumbnailBase],
-	    ['originalCreatedFrom', draft.originalCreatedFrom],
-	    ['originalCreatedBefore', draft.originalCreatedBefore],
-	    ['duration', draft.duration],
-	    ['parentPostIds', draft.parentPostIds]] as const
-	draftFields.forEach (([field, value]) => {
-	    nextAttributes[field] = value
-	    nextProvenance[field] =
-		value !== String (editingRow.attributes[field] ?? '')
-		? 'manual'
-		: (editingRow.provenance[field] ?? 'automatic')
-	})
-	nextAttributes.tags = draft.tags
-	if (draft.tags !== String (editingRow.attributes.tags ?? ''))
-	  {
-	    nextProvenance.tags = 'manual'
-	    nextTagSources.manual = draft.tags
-	  }
-	else
-	  {
-	    nextProvenance.tags = editingRow.provenance.tags ?? 'automatic'
-	    nextTagSources.manual = editingRow.tagSources?.manual ?? ''
-	  }
+	const nextRow =
+	    resetRequested
+	    ? {
+		...editingRow,
+		url: resetSnapshot.url,
+		attributes: { ...resetSnapshot.attributes },
+		provenance: { ...resetSnapshot.provenance },
+		tagSources: { ...resetSnapshot.tagSources },
+		metadataUrl: resetSnapshot.metadataUrl,
+		importStatus: editingRow.importStatus === 'created' ? 'created' : 'pending',
+		importErrors: undefined }
+	    : buildNextEditedRow (editingRow, draft, urlChanged)

 	setSavingRow (editingRow.sourceRow)
 	const nextRows = session.rows.map (row =>
 	    row.sourceRow === editingRow.sourceRow
-	    ? {
-		...row,
-		url: draft.url,
-		attributes: nextAttributes,
-		provenance: {
-		    ...nextProvenance,
-		    url: urlChanged ? 'manual' : (editingRow.provenance.url ?? 'manual') },
-		tagSources: nextTagSources,
-		importStatus: row.importStatus === 'created' ? 'created' : 'pending',
-		importErrors: undefined }
+	    ? nextRow
 	    : row)
 	try
 	{
@@ -300,7 +277,6 @@ const PostImportReviewPage: FC<Props> = ({ user }) => {
 		<div className="flex flex-wrap items-center gap-2">
 		  <PostImportSummaryChip label="全件" value={counts.total}/>
 		  <PostImportSummaryChip label="登録対象" value={counts.submittable} badge="ready"/>
-		  <PostImportSummaryChip label="要確認" value={counts.invalid} badge="error"/>
 		  <PostImportSummaryChip label="スキップ予定" value={counts.skipPlanned}
 					 badge="skipped"/>
 		</div>
@@ -321,7 +297,6 @@ const PostImportReviewPage: FC<Props> = ({ user }) => {

 	  <PostImportFooter
 	      loading={loading}
-	      invalidCount={counts.invalid}
 	      processableCount={processable.length}
 	      creatableCount={creatable.length}
 	      skipPlannedCount={counts.skipPlanned}
@@ -343,34 +318,31 @@ const PostImportReviewPage: FC<Props> = ({ user }) => {

 const PostImportFooter = (
    { loading,
-      invalidCount,
      processableCount,
      creatableCount,
      skipPlannedCount,
      onBack,
      onSubmit }: {
 	loading:            boolean
-	invalidCount:       number
 	processableCount:   number
 	creatableCount:     number
 	skipPlannedCount:   number
 	onBack:             () => void
 	onSubmit:           () => void },
 ) => (
-    <PageActionFooter
-	summary={
-	    <>
+    <div
+	className="shrink-0 border-t bg-white/95 p-4 backdrop-blur
+		   dark:border-neutral-700 dark:bg-neutral-950/95">
+      <div className="mx-auto flex max-w-6xl flex-col gap-3 md:flex-row
+		      md:items-center md:justify-between">
+	<div className="flex flex-wrap items-center gap-2 text-sm">
 	  <span>処理対象 {processableCount} 件</span>
 	  <PostImportStatusBadge value="ready"/>
 	  <span>登録対象 {creatableCount} 件</span>
 	  <PostImportStatusBadge value="skipped"/>
 	  <span>スキップ予定 {skipPlannedCount} 件</span>
-	      <PostImportStatusBadge value="error"/>
-	      <span>要確認 {invalidCount} 件</span>
-	    </>
-	}
-	actions={
-	    <>
+	</div>
+	<div className="flex flex-col gap-2 sm:flex-row">
 	  <Button type="button" variant="outline" onClick={onBack}>
 	    URL リスト入力へ戻る
 	  </Button>
@@ -380,7 +352,56 @@ const PostImportFooter = (
 	      disabled={loading || processableCount === 0}>
 	    取込を実行
 	  </Button>
-	    </>
-	}/>)
+	</div>
+      </div>
+    </div>)
+
+const buildNextEditedRow = (
+    editingRow:  PostImportRow,
+    draft:       Draft,
+    urlChanged:  boolean,
+): PostImportRow => {
+    const nextProvenance = { ...editingRow.provenance }
+    const nextAttributes = { ...editingRow.attributes }
+    const nextTagSources = {
+	automatic: editingRow.tagSources?.automatic ?? '',
+	manual: editingRow.tagSources?.manual ?? '' }
+    const draftFields = [
+	['title', draft.title],
+	['thumbnailBase', draft.thumbnailBase],
+	['originalCreatedFrom', draft.originalCreatedFrom],
+	['originalCreatedBefore', draft.originalCreatedBefore],
+	['duration', draft.duration],
+	['parentPostIds', draft.parentPostIds]] as const
+    draftFields.forEach (([field, value]) => {
+	nextAttributes[field] = value
+	nextProvenance[field] =
+	    value !== String (editingRow.attributes[field] ?? '')
+	    ? 'manual'
+	    : (editingRow.provenance[field] ?? 'automatic')
+    })
+    nextAttributes.tags = draft.tags
+    if (draft.tags !== String (editingRow.attributes.tags ?? ''))
+      {
+	nextProvenance.tags = 'manual'
+	nextTagSources.manual = draft.tags
+      }
+    else
+      {
+	nextProvenance.tags = editingRow.provenance.tags ?? 'automatic'
+	nextTagSources.manual = editingRow.tagSources?.manual ?? ''
+      }
+
+    return {
+	...editingRow,
+	url: draft.url,
+	attributes: nextAttributes,
+	provenance: {
+	    ...nextProvenance,
+	    url: urlChanged ? 'manual' : (editingRow.provenance.url ?? 'manual') },
+	tagSources: nextTagSources,
+	importStatus: editingRow.importStatus === 'created' ? 'created' : 'pending',
+	importErrors: undefined }
+}

 export default PostImportReviewPage