-- allium: 1
-- bDS Media Editor View
-- Scope: UI content area — media editing surface
-- Distilled from: MediaEditor.tsx

-- Describes the layout and behaviour of the media editor rendered in
-- the main content area when a media tab is active.

use "./media.allium" as media
use "./i18n.allium" as i18n

-- ─── External surfaces ──────────────────────────────────────

surface User {
    provides: MediaAIImageAnalysisRequested(media_id)
    provides: MediaDetectLanguageRequested(media_id)
    provides: MediaTranslateMetadataRequested(media_id, target_language)
    provides: MediaReplaceFileRequested(media_id)
    provides: MediaDeleteRequested(media_id)
    provides: MediaLinkToPostRequested(media_id)
    provides: MediaTranslationEditClicked(media_id, language)
    provides: MediaTranslationRefreshClicked(media_id, language)
    provides: MediaTranslationDeleteClicked(media_id, language)
}

-- ─── Media editor ─────────────────────────────────────────────

-- Single column: preview area on top, metadata form below.

-- Header bar:
--   Media display name
--   Actions: Quick Actions dropdown, Replace File, Save, Delete
-- Quick Actions:
--   AI Image Analysis (image/* types only) - suggests title, alt, caption
--   Detect Language (from metadata text)
--   Translate Metadata (opens translation target modal)

-- Preview area:
--   Images: rendered via bds-media:// protocol with cache-busting timestamp
--   Non-images: SVG file icon placeholder + original filename text

-- Metadata form fields:
--   File Name (read-only), MIME Type (read-only),
--   Size (formatted as KB) + Dimensions (W x H, only if width/height exist),
--   Title (editable), Alt Text (editable), Caption (textarea 3 rows),
--   Tags (comma-separated text input), Author, Language (select)

-- Translations section (shown only when language is set):
--   List of existing translations: flag + language name + title
--   Per-translation: click to edit, refresh button, delete button
--   "No translations" message when empty

-- Linked Posts section:
--   "Link to Post" button opens post picker overlay
--   Post picker: search input, up to 10 unlinked posts, "and N more" if >10
--   List of currently linked posts (clickable -> navigates), unlink button
--   "Not linked to any posts" when empty

value MediaEditorView {
    media_id: String
    is_image: Boolean
    file_name: String                   -- originalName, read-only
    mime_type: String
    file_size: String                   -- formatted
    dimensions: String?                 -- "W x H" if available
    title: String?
    alt_text: String?
    caption: String?
    tags: String?                       -- comma-separated
    author: String?
    language: String?
    translations: List<MediaTranslationItem>
    linked_posts: List<LinkedPostItem>
}

value MediaTranslationItem {
    language: String
    title: String?
}

value LinkedPostItem {
    post_id: String
    title: String
}

-- No auto-save; explicit Save button required.
-- Replace File opens a native file dialog.
-- Delete shows confirmation with references (linked posts).

-- ─── Post picker overlay ────────────────────────────────────

value PostPickerOverlay {
    -- Inline overlay positioned near "Link to Post" button (media editor).
    -- Not a modal — positioned as dropdown below trigger button.
    -- Search input filtering posts by title (only unlinked posts shown).
    -- Up to 10 results displayed. "and N more" text if total exceeds 10.
    -- Click result: links media to selected post, closes overlay.
    search_query: String
    results: List<PostPickerResult>
    overflow_count: Integer?             -- shown as "and N more" if > 0
}

value PostPickerResult {
    post_id: String
    title: String
}

-- ─── Media editor actions ─────────────────────────────────────

rule MediaAIImageAnalysis {
    when: MediaAIImageAnalysisRequested(media_id)
    -- Gate: airplane mode check (see action_patterns.allium AIOperationGating)
    -- Only available for image/* MIME types (button hidden for non-images)
    -- Uses image analysis model (vision-capable, not title model)
    -- Input: AI-optimized JPEG thumbnail (448x448, generated on import)
    -- Response: suggested title, alt text, caption
    -- Opens AISuggestionsModal with 3 fields (title, alt, caption)
    -- On confirm: applies checked fields, triggers explicit save
}

rule MediaDetectLanguage {
    when: MediaDetectLanguageRequested(media_id)
    -- Gate: airplane mode check
    -- Input: concatenation of title + alt + caption text
    -- Response: detected language code
    -- Immediately persists to media record (no modal, no confirmation)
    -- Triggers sidecar rewrite
}

rule MediaTranslateMetadata {
    when: MediaTranslateMetadataRequested(media_id, target_language)
    -- Gate: airplane mode check
    -- Opens language picker modal (same pattern as post translate)
    -- Two-step process:
    --   1. If source language not set: detect it first (auto-persist)
    --   2. Translate title, alt, caption to target language via title model
    -- Creates/updates media translation record
    -- Writes translated sidecar file: {path}.{lang}.meta
}

rule MediaReplaceFile {
    when: MediaReplaceFileRequested(media_id)
    -- Opens native file dialog (no MIME type filter)
    -- Copies selected file over existing media file path
    -- If image: regenerates thumbnails synchronously (awaited)
    -- Preview area updates with cache-busting timestamp query param
}

rule MediaDeleteAction {
    when: MediaDeleteRequested(media_id)
    -- Opens ConfirmDeleteModal (custom modal, not native dialog)
    -- Shows: media display name, linked posts count and list
    -- Two buttons: Cancel, Delete (destructive red style)
    -- On confirm: deletes file, sidecar, thumbnails, all translations,
    --   post-media links, FTS index entry
    -- Closes media tab, sidebar removes item
    -- See engine_side_effects.allium DeleteMediaSideEffects
}

rule MediaLinkToPost {
    when: MediaLinkToPostRequested(media_id)
    -- Opens inline post picker overlay (not a modal, positioned near button)
    -- Search input filtering unlinked posts by title
    -- Up to 10 results shown, "and N more" text if results exceed 10
    -- Click links media to selected post (updates sidecar linkedPostIds)
    -- Linked posts list refreshes immediately
}

rule MediaTranslationEdit {
    when: MediaTranslationEditClicked(media_id, language)
    -- Loads translation fields inline (title, alt, caption) for that language
    -- Edit in place, save persists to translated sidecar {path}.{lang}.meta
}

rule MediaTranslationRefresh {
    when: MediaTranslationRefreshClicked(media_id, language)
    -- Gate: airplane mode check
    -- Re-translates from source language to target via title model
    -- Overwrites existing translation fields
    -- Rewrites translated sidecar file
}

rule MediaTranslationDelete {
    when: MediaTranslationDeleteClicked(media_id, language)
    -- Deletes translation record from DB
    -- Deletes translated sidecar file: {path}.{lang}.meta
    -- No confirmation dialog
}