-- allium: 1
-- bDS Action Patterns and Chains
-- Scope: cross-cutting (all waves)
-- Distilled from: PostEditor.tsx, MediaEditor.tsx, appStore.ts

-- Cross-cutting patterns for AI operations, auto-translation,
-- drag-and-drop chains, and confirmation dialogs.

use "./post.allium" as post
use "./media.allium" as media

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

surface UserAction {
    provides: AISuggestionRequested(entity_type, entity_id)
    provides: PostSaved(post_id)
    provides: PostAutoTranslateCompleted(post_id, language)
}

-- ─── AI operation gating ───────────────────────────────

invariant AIOperationGating {
    -- All AI operations route through the active endpoint for the current mode.
    -- See ai.allium AirplaneModeGating for endpoint selection logic.
    -- If airplane_mode: use airplane endpoint (local model, e.g. Ollama/LM Studio)
    -- If online: use online endpoint (cloud provider)
    -- If active endpoint not configured: show toast, abort operation
    -- Two model categories:
    --   Title model: text analysis (suggestions, translation, language detect)
    --   Image model: vision-capable (image analysis only)
    -- Model selection: per-operation default from settings,
    --   overrideable per-conversation in chat panel only
}

-- ─── AI suggestions pattern ────────────────────────────

-- Shared flow used by PostAIAnalysis and MediaAIImageAnalysis.
-- See modals.allium AISuggestionsModal value type.

rule AISuggestionFlow {
    when: AISuggestionRequested(entity_type, entity_id)
    -- 1. Check AIOperationGating (abort if offline and no local model)
    -- 2. Send request to appropriate model:
    --      Posts: title model, input = title + excerpt + first 2000 chars
    --      Media: image model, input = 448x448 AI thumbnail JPEG
    -- 3. Parse response into per-field suggestions
    -- 4. Open AISuggestionsModal:
    --      Each field: label, current value, suggested value, accept checkbox
    --      Accept checkboxes default to true
    --      Special case: post slug locked (no checkbox) if ever published
    -- 5. On Confirm: apply only accepted fields to entity
    --      Posts: triggers auto-save (3s timer reset)
    --      Media: triggers explicit save
    -- 6. On Cancel: discard all suggestions, no changes
}

-- ─── Auto-translation chain ────────────────────────────

rule AutoTranslationChain {
    when: PostSaved(post_id)
    -- Gate: AIOperationGating + post.doNotTranslate must be false
    -- Triggered after any post save (auto-save, manual Ctrl+S, or unmount)
    -- For each configured blogLanguage missing a translation for this post:
    --   1. Enqueue background task: translate metadata (title, excerpt)
    --      via title model
    --   2. Enqueue background task: translate content (full markdown)
    --      via title model
    --   3. Create/update translation record in DB
    -- Tasks: sequential per language, parallel across languages
    -- Progress visible in Tasks panel
}

rule MediaMetadataTranslationCascade {
    when: PostAutoTranslateCompleted(post_id, language)
    -- After a post translation completes for a given language:
    -- For each media item linked to this post:
    --   If media has source language set
    --     and no translation exists for {language}:
    --     Enqueue background task: translate media metadata
    --       (title, alt, caption) via title model
    --     Creates translated sidecar file: {path}.{lang}.meta
}

-- ─── Drag-and-drop image chain ─────────────────────────

-- Full chain when image file is dropped on post editor body.
-- See editor_post.allium PostDragDropImage for trigger rule.

-- Synchronous steps (user waits):
--   1. importMedia(file) -> new media record + file copy + base sidecar
--   2. generateThumbnails(media) -> async start (small/medium/large/ai)
--   3. linkMediaToPost(media, post) -> update sidecar linkedPostIds
--   4. insertMarkdownImage(cursor) -> insert ![](bds-media://id) at cursor

-- Background steps (non-blocking, results auto-applied):
--   5. If AI available: aiImageAnalysis(media)
--        Uses image model on 448x448 AI thumbnail
--        Results auto-applied to media metadata (NO modal for drag-drop,
--          unlike manual Quick Action which shows AISuggestionsModal)
--        Triggers sidecar rewrite
--   6. If auto-translate enabled (post.doNotTranslate=false):
--        For each blogLanguage: translateMediaMetadata(media, lang)
--        Creates translated sidecar files

-- ─── Confirmation dialog patterns ──────────────────────

-- Four distinct patterns used across the application:

-- Pattern 1: System confirm dialog
--   Simple yes/no system dialog, no custom UI
--   Used by: PostDelete, PostDiscard, TemplateDelete (when references exist)

-- Pattern 2: ConfirmDeleteModal (custom modal with reference info)
--   Shows entity name, reference counts, linked entity list
--   Two buttons: Cancel, Delete (destructive red style)
--   Used by: MediaDelete (shows linked posts), TagDelete (shows post count)

-- Pattern 3: ConfirmDialog (custom modal for non-delete confirmations)
--   Shows description of action and consequences
--   Two buttons: Cancel, Confirm
--   Used by: TagMerge ("Merge N tags into {target}? Cannot be undone.")

-- Pattern 4: No confirmation (immediate execution)
--   Action executes on click, no dialog
--   Used by: all Rebuild operations, ScriptDelete, MenuItemDelete,
--     MetadataDiff per-field sync, ImportExecute, MediaTranslationDelete,
--     MediaUnlink