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bDS2/CODESMELL.md
Chili Palmer f6425de51d chore: merged different progress reporters 
Co-authored-by: Copilot <copilot@github.com>
2026-05-01 17:12:49 +02:00

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Elixir Code Smell Analysis — bDS2

Living document. Each section lists status, then open work in priority order, then a brief notes block. Completed work is listed compactly at the bottom (## Changelog).

Last refreshed: 2026-05-09.

1. God Modules

Status: in progress. The originally-flagged god modules (now including BDS.MCP) are all reduced to coordinator size; the open queue is empty.

Open queue (priority order)

None. All modules previously on the queue have been split; refresh the queue if a new module crosses the 800-line threshold.

Established pattern: extract cohesive helper clusters into submodules under lib/<context>/<sub>.ex; import BDS.X.Y, only: [...] from the main module so internal call sites are unchanged; defdelegate for any helper still needed through the public namespace; verify with mix compile --warnings-as-errors, mix dialyzer --format short, and full mix test after each extraction.

Completed (see Changelog for details)

  • BDS.Generation 2651 → 647 (76 %)
  • BDS.AI 1711 → 168 (90 %)
  • BDS.Scripting.Capabilities 1715 → 194 (89 %)
  • BDS.Posts 1781 → 569 (68 %)
  • BDS.Desktop.ShellLive 2607 → 1545 (41 %)
  • BDS.Maintenance 810 → 141 (83 %)
  • BDS.Media 993 → 324 (67 %)
  • BDS.Desktop.ShellLive.ImportEditor 1436 → 776 (46 %)
  • BDS.Rendering 838 → 33 (96 %)
  • BDS.Desktop.ShellLive.MenuEditor 871 → 335 (62 %)
  • BDS.Desktop.ShellLive.PostEditor 963 → 506 (47 %)
  • BDS.Desktop.ShellLive.SettingsEditor 872 → 226 (74 %)
  • BDS.Desktop.ShellLive.ChatEditor 972 → 576 (41 %)
  • BDS.MCP 677 → 27 (96 %)

2. Process Dictionary for i18n State

Status: ✅ encapsulated (2026-05-10). Raw Process.put(:bds_ui_locale, _) / Process.get(:bds_ui_locale) no longer appears outside BDS.Desktop.UILocale. The two render boundaries (BDS.Desktop.ShellLive.render/1 and BDS.Desktop.ShellLive.SidebarComponents.sidebar_content/1) now call UILocale.put/1; the ~30 helper read sites call BDS.Desktop.UILocale.current/0. The full thread-locale-through-assigns rewrite (~733 HEEx call sites) was rejected as too invasive for the marginal benefit; the encapsulation removes the implicit-global smell while keeping the LiveView lazy-render path intact.

Why the helper does not restore on render exit: Phoenix's ~H returns a Phoenix.LiveView.Rendered whose dynamic function is invoked lazily by LiveView after render/1 returns. A try/after Process.delete wrapper around render/1 would clear the binding before child components materialize, so render boundaries use UILocale.put/1 (set-only). UILocale.with_locale/2 is provided for short-lived non-LiveView contexts (background tasks, scripts) that consume the binding eagerly inside the closure.

Module rules:

  • Only lib/bds/desktop/ui_locale.ex may touch the :bds_ui_locale process key.
  • New code that needs the active UI locale must call BDS.Desktop.UILocale.current/0 (or take it as an argument).
  • New render entry points that change the locale must call BDS.Desktop.UILocale.put/1 at the top of render/1.

3. Side Effects in Transactions

Status: ✅ done for explicit Repo.transaction/1 sites (2026-05-10). BDS.Media, BDS.Templates.update_template/2, BDS.Metadata, BDS.Tags, and BDS.Projects now keep filesystem/search/template-rebuild side effects outside their DB transactions. Remaining explicit transactions (BDS.PostLinks, BDS.AI.Catalog, project activation/deletion cleanup, and media link helpers) are DB-only or already run filesystem cleanup after commit. BDS.Posts, BDS.Publishing, and BDS.Generation do not currently use Repo.transaction/1.

Rule: only DB writes inside explicit transactions; filesystem, search sync, template rebuilds, and published-file rewrites run after commit.

4. String.to_atom/1 on Untrusted Input

Status: ✅ done. The only attacker-reachable site (MCP.atomize_keys/1) was deleted (2026-04-30). Nine remaining String.to_atom/1 call sites all operate on bounded enums (workbench types, release platforms, route IDs, capability keys, AI catalog modalities) and are safe.

5. Bang File Operations in Long-Running Code

Status: ✅ done (2026-05-10). Scoped File.read! / File.write! sites reachable from rebuild workers and LiveView events have been replaced with {:ok, _} | {:error, _} propagation.

Scope audited: BDS.Posts.RebuildFromFiles, BDS.Media, BDS.MCP, BDS.Generation, and the MCP settings UI config probe. Mandatory-config reads at boot remain out of scope.

Rule: long-running rebuild/sync/import paths and LiveView event-triggered config writes must not crash on expected filesystem read/write failures; return tagged errors instead.

6. Duplicate Helpers Across Contexts

Status: ✅ done (2026-05-10). Shared atom-or-string map helpers now live in BDS.MapUtils; shared two-arity progress callback extraction, count-based progress math, message shaping, scaling, phase reporting, and rebuild wrappers now live in BDS.ProgressReporter.

Scope closed: Posts, Media, Search, Generation, Publishing, MCP, plus the same rebuild helper copies in Scripts, Templates, and Embeddings. Domain modules may keep thin wrappers for readability, but progress behavior is parameterized through the shared reporter. Remaining helpers with similar names are intentionally different local UI/import trimming helpers or non-progress map utilities.

7. Direct Repo.get in BDS.Desktop.ShellLive

Status: open. 10 call sites verified.

Plan: add the missing context functions (Posts.get_post_with_translations/1, etc.) and replace each Repo.get(Schema, id) with the context call.

8. String.to_existing_atom/1 + rescue ArgumentError

Status: open, low priority.

Plan: introduce explicit string→atom whitelists for the half-dozen call sites (safe_existing_atom, view-id parsing, panel-tab parsing) so the rescue clause becomes dead code, then delete it.

9. Jason.decode!/1 on External HTTP Responses

Status: open.

Scope: only the 2 sites in BDS.AI / BDS.AI.OpenAICompatibleRuntime that decode HTTP response bodies. The remaining 12 Jason.decode!/1 sites decode our own on-disk files (metadata, embeddings index, generation hashes) and are not in scope.

Plan: switch to Jason.decode/1 and propagate {:error, reason} from the runtime through to the chat / one-shot orchestration layer in BDS.AI.Chat and BDS.AI.OneShot.

10. Missing @spec

Status: ✅ done for core contexts (2026-04-30). Open for LiveView editor modules and the smaller contexts (Tags, Templates, Scripts, PostLinks).

Convention reminder: Ecto schemas need explicit @type t; use term() for associations; use @typedoc + named types for repeated map shapes; for attrs maps use %{optional(atom()) => term(), optional(String.t()) => term()}.

11. Raw SQL Outside FTS5

Status: ✅ done for the post_media table (2026-04-30, replaced by BDS.Posts.PostMedia schema). Remaining raw SQL is FTS5-virtual-table queries in BDS.Search only — keep them raw.

12. Atom/String Key Duality

Status: open, low priority.

Pattern: Map.get(assigns, :language, Map.get(assigns, "language", default)) in many editors and capability bridges.

Plan: normalize at boundaries. Adopt the rule "atoms internally, strings only at JSON/HTTP boundaries", and use attr/2 (post-#6 consolidation) at every boundary point.

13. BDS.Tasks Memory Growth

Status: open, bounded in practice.

Risk: the tasks map grows for the lifetime of the BEAM unless the UI calls clear_completed/clear_finished. Long-running desktop sessions could accumulate thousands of finished tasks.

Plan: TTL eviction in the BDS.Tasks GenServer (e.g., drop :completed/:failed/:cancelled older than 1 h); already partially mitigated by recent_finished_limit in build_status_snapshot/1.

14. Synchronous Tests

Status: intentional, no further action.

Most tests share the SQLite repo and named GenServers (BDS.Tasks, BDS.Search, BDS.AI.Catalog, BDS.Embeddings). async: false is correct. Pure-logic tests (parsers, formatters) could opt into async: true opportunistically.

What the Project Does Well

  • Clear context separation (Posts, Media, Projects, Search, AI, Generation).
  • Consistent Ecto changesets at every write boundary.
  • Idiomatic with blocks for multi-step error flows.
  • Task.Supervisor used correctly for background work.
  • Submodule extraction pattern proven across 5 large modules without breaking public API contracts.

Changelog

2026-05-10

  • Duplicate helpers across contexts: added BDS.MapUtils (attr/2, maybe_put/3, blank_to_nil/1) and expanded BDS.ProgressReporter (callback/1, scaled/3, report_count_started/4, report_count_progress/5, report_rebuild_started/3, report_rebuild_progress/4, report_phase/3). Replaced copy-pasted helpers in posts, post translations, post rebuild, media file ops, search, generation progress, maintenance progress, embeddings/index progress, publishing, MCP util, scripts, and templates. Domain-specific modules now express their wording/ranges as options to the shared reporter, preserving existing user-facing progress messages while sharing one implementation. Added focused tests for both shared modules. Section 6 is closed.

  • Bang file operations in long-running code: BDS.Media.Sidecars.parse_canonical_sidecar/2 and parse_translation_sidecar/1 now use File.read/1 and return {:ok, sidecar} or {:error, {:read_sidecar, path, reason}} instead of raising. Media rebuild collects parsed sidecars and returns the first sidecar read error before mutating rows; media sync/import sidecar entrypoints propagate the same errors. Added regression coverage for an unreadable .meta sidecar directory preserving the worker instead of crashing it.

  • Bang file operations in long-running code: BDS.Posts.RebuildFromFiles.parse_rebuild_file/2 now uses File.read/1 and returns {:ok, rebuild_file} or {:error, {:read_rebuild_file, path, reason}}; post rebuild/import/sync-from-file callers propagate the tagged error. BDS.Generation.apply_validation/2 now hashes existing generated files with File.read/1 and returns {:error, {:read_generated_file, path, reason}} on read failures. BDS.MCP.AgentConfig now uses File.mkdir_p/1, File.read/1, Jason.decode/1, and File.write/2, returning tagged config read/write/create/decode errors instead of raising; the settings editor reports those errors through its existing output surface and its config probe no longer uses bang reads. Added regressions for unreadable post files, unreadable generated files, unreadable MCP config, and unwritable MCP config. Section 5 is closed.

  • Side effects in transactions: BDS.Metadata.update_project_metadata/2, sync_project_metadata_from_filesystem/1, and the shared category/publishing update_state path now keep only project/settings row changes inside Repo.transaction/1. Metadata JSON files are flushed after commit and Persistence.atomic_write/2 now returns {:error, reason} for directory-creation failures instead of raising. Added regression coverage for a failed metadata filesystem flush preserving the committed project/settings changes.

  • Side effects in transactions: BDS.Tags.sync_tags_from_posts/1, delete_tag/1, rename_tag/2, and merge_tags/2 now commit tag/post-tag DB changes before published-post rewrites and meta/tags.json flushes. BDS.Projects.ensure_default_project/0 and create_project/1 now commit the project row before rebuilding templates from filesystem files. Added regressions for failed tag JSON flushes and failed template rebuilds preserving committed DB changes. Finished the explicit Repo.transaction/1 audit: remaining transactions are DB-only or already defer filesystem cleanup until after commit; BDS.Posts, BDS.Publishing, and BDS.Generation have no explicit transaction sites.

  • Process dictionary for i18n state (Section 2): encapsulated behind BDS.Desktop.UILocale (lib/bds/desktop/ui_locale.ex, ~50 lines). Public surface: put/1 (set without restore, for LV render boundaries that return lazy Rendered), with_locale/2 (set + try/after restore, for short-lived eager contexts), current/0 (read, returns nil when unset). The two raw Process.put(:bds_ui_locale, _) sites (BDS.Desktop.ShellLive.render/1 and BDS.Desktop.ShellLive.SidebarComponents.sidebar_content/1) now call UILocale.put/1; the ~30 raw Process.get(:bds_ui_locale) reads (every editor translated/1,2 helper plus BDS.Desktop.ShellData.effective_ui_language/1) now call BDS.Desktop.UILocale.current/0. The full thread-locale-through-assigns rewrite (~733 HEEx call sites) was deliberately rejected as too invasive; the encapsulation removes the implicit-global smell while preserving Phoenix's lazy Rendered evaluation. The render path uses put/1 (not with_locale/2) because Phoenix ~H returns a Rendered whose dynamic is invoked by LiveView after render/1 returns; a try/after Process.delete would clear the binding before child components materialize. Only BDS.Desktop.UILocale is allowed to touch the :bds_ui_locale process key. Validates clean: mix compile --warnings-as-errors, mix dialyzer --format short (Total errors: 0), mix test (342 tests, 0 failures, 4 skipped, three consecutive runs).

2026-05-09

  • God modules:
    • BDS.MCP 677 → 27 (96 %). Submodules under lib/bds/mcp/: Util (36, sanitize/1 + normalize_term/1 + maybe_put/3 + map_get/3), Queries (201, page_size/0 + active_project!/0 + post_summary/1 + post_detail/1 + translated_post_detail/2 + search_filters/1 + parse_status/1 + group_rows/2 + private group_values/2 (5 clauses) + available_languages/2 + linked_posts/2 + private load_linked_post/1 + post_body/1 + translation_body/1 + tag_post_count/2 + category_post_count/2), Tools (394, list/0 + call/2 + validate_template/1 + private check_term/1 + search_posts/1 + count_posts/1 + read_post_by_slug/1 + draft_post/1 + propose_script/1 + propose_template/1 + propose_media_metadata/1 + propose_post_metadata/1 + accept_proposal/1 + discard_proposal/1 + script_validation/1 + parse_script_kind/1 + parse_template_kind/1 + tool/2), Resources (112, list/0 + read/1 + private posts_resource/1 + media_resource/1 + tags_resource/0 + categories_resource/0 + read_post_resource/1 + read_media_resource/1). Coordinator BDS.MCP keeps the 5 public entrypoints (list_tools/0, list_resources/0, call_tool/2, read_resource/1, validate_template/1) as defdelegate to Tools/Resources and re-exports the tool_descriptor/resource_descriptor types as aliases of Tools.descriptor/Resources.descriptor. Cross-submodule deps are linear and acyclic: Tools → Queries + Util + ProposalStore; Resources → Queries + Util + ProposalStore; Queries → Util; Util is a leaf. Existing siblings (ProposalStore, Proposal, AgentConfig, Server, Stdio) untouched. The pre-existing BDS.MCP.Server/Stdio callers (call_tool / list_tools / list_resources / read_resource) keep using the coordinator unchanged. Validates clean: mix compile --warnings-as-errors, mix dialyzer --format short (Total errors: 0), mix test (342 tests, 0 failures, 4 skipped).

2026-05-08

  • God modules:
    • BDS.Desktop.ShellLive.ChatEditor 972 → 576 (41 %). Submodules under lib/bds/desktop/shell_live/chat_editor/: ToolSurfaces (274, build_render_surfaces + build_render_surface + do_build_render_surface (8 clauses) + build_tab_surface + decode_surface_actions/options + normalize_tool_surface + map_value + numeric_value + stringify_list + render_tool? + @render_tool_names), ToolTracking (101, tool_call_name + tool_call_arguments + normalize_tool_calls + tool_arguments_preview + mark_tool_call_completed + tool_markers_from_events + mark_last_matching_complete + preview_value + @tool_args_max_length), MessageBuild (118, build/1,2 + build_entries + finalize_entry + start_entry + append_tool_surface + pending_user_message + streaming_content), ModelSelection (80, toggle_model_selector + set_model + group_available_models + needs_api_key? + provider_group_label + blank?). Coordinator keeps the 3 HEEx components (chat_editor, chat_tool_markers, chat_surface), the 13 public event handlers (assign_socket, update_input, update_surface_form, select_surface_tab, current_surface_data, set_action_error, clear_action_error, send_message, abort_message, note_tool_call, note_tool_result, note_streaming_content, finish_request), the HEEx-callable helpers (markdown_html, message_role_label, payload_json, chart_width, truthy?, tool_surface_type, translated/1,2), private helpers (update_request, allow_repo_sandbox, rewrite_external_images, external_image_link, surface_input_type, present?, format_error), and defdelegate entries for build/1, toggle_model_selector/2, set_model/4, tool_call_name/1, tool_call_arguments/1. Cross-submodule deps are linear: MessageBuild → ModelSelection + ToolSurfaces + ToolTracking; ToolSurfaces, ToolTracking, ModelSelection are leaves. Each submodule that needs it duplicates the small translated/2 and blank?/1 helpers locally per the established convention; ToolSurfaces also duplicates truthy?/1 privately. ModelSelection uses Phoenix.Component.assign/3 via import only:. The 400-line target was not reachable while keeping all 3 HEEx components in the coordinator (the chat_surface component alone is ~200 lines). Validates clean: mix compile --warnings-as-errors, mix dialyzer --format short (Total errors: 0), mix test (342 tests, 0 failures, 4 skipped).

2026-05-07

  • God modules:
    • BDS.Desktop.ShellLive.SettingsEditor 872 → 226 (74 %). Submodules under lib/bds/desktop/shell_live/settings_editor/: StyleEditor (103, build_style + select_style_theme + change_style_preview_mode + apply_style_theme + theme_display_name + current_theme + style_theme + @themes), MCPConfig (100, mcp_rows + toggle_mcp_agent + find_mcp_agent + mcp_configured? + mcp_config_path + mcp_server_present? + @mcp_agents), PublishingSettings (89, publishing_form + update_publishing_draft + save_publishing + clear_publishing + publishing_attrs + normalize_publishing_params), EditorSettings (93, editor_form + update_editor_draft + save_editor + get_global_setting + put_global_setting + editor_attrs + normalize_editor_params + boolean_string), ProjectSettings (112, project_metadata + project_form + technology_form + update_project_draft + save_project + project_attrs + normalize_project_params), ManagedCategories (194, protected_categories + protected_category? + category_rows + update_new_category + add_category + reset_categories + save_category + remove_category + ensure_default_categories + reset_default_category_settings + @protected_categories + @default_category_settings), AISettings (203, ai_form + endpoint_model_options + update_ai_draft + refresh_ai_models + save_ai + reset_ai_prompt + ai_attrs + normalize_ai_params + get_model_preference + maybe_put_model_preference + put_endpoint_preferences + endpoint_refresh_attrs + normalize_endpoint_result). Coordinator keeps embed_templates "settings_editor_html/*" (HEEx components settings_editor + style_editor), assign_socket/1, update_search/3, the build_settings/1 aggregator, the current_settings_section/current_tab_meta/visible_settings_sections/section_matches?/template_options helpers, the translated/1,2 HEEx render-time helper, and defdelegate entries for the 21 public event handlers + the HEEx-callable theme_display_name/1 (delegated to StyleEditor) and protected_category?/1 (delegated to ManagedCategories). Cross-submodule deps: AISettings calls EditorSettings.{get_global_setting/1, put_global_setting/2} (the only intra-submodule dependency); all other submodules are leaves. Each submodule duplicates the small translated/2, truthy?/1, blank_to_nil/1, parse_integer/2, boolean_string/1 helpers locally per the established convention. Submodules use Phoenix.Component.assign/3 directly via use Phoenix.Component. Validates clean: mix compile --warnings-as-errors, mix dialyzer --format short (Total errors: 0), mix test (342 tests, 0 failures, 4 skipped).

2026-05-06

  • God modules:
    • BDS.Desktop.ShellLive.PostEditor 963 → 506 (47 %). Submodules under lib/bds/desktop/shell_live/post_editor/: PostMetadata (190, project_metadata + canonical_language + translations + languages + template_options + linked_media + post_links + translation_flags + footer + format_timestamp + display_title + gallery_count + preview_url + canonical_preview_path + pad2 + maybe_put_query + truthy? + blank? + blank_to_nil), ListValues (125, field_key + tag_values/category_values + tag_suggestions/category_suggestions + filter_suggestions + tag_chips + query_addable? + normalize_query + normalize_list_entry + ensure_list_value + csv_to_list + tag_chip_style + normalize_color + contrast_color + ai_overlay_fields), DraftManagement (183, normalize_mode + normalize_language + normalize_params + current_draft + persisted_form/3,4 + maybe_update_draft + put_draft_field + put_query_state + query_value + query_key + maybe_drop_old_language_draft + toggled_sections + put_nested_map + delete_nested_map + reload_with_assigned_workbench + save_state_for_action + record_title + record_status + editing_canonical_language?), Persistence (105, persist + discard + has_published_version? + discard_label + discard_title + save_canonical_draft + save_translation_draft + maybe_publish_post + maybe_publish_translation). Coordinator keeps the 16 public event handlers (assign_socket, update, persist_socket, discard_socket, delete_socket, set_mode, toggle_section, select_language, toggle_quick_actions, detect_language, translate, apply_ai_suggestions, insert_content, add_list_value, remove_list_value), build/1,2, and the HEEx-callable helpers (translated/1,2, post_status_label/1, post_editor_save_state_label/1, post_editor_mode_label/1); tag_chip_style/1 is exposed via defdelegate so HEEx call sites stay unchanged. Cross-submodule deps form a runtime cycle between PostMetadata.canonical_language → DraftManagement.normalize_language and DraftManagement.persisted_form → PostMetadata.translations/canonical_language (compile-safe, no compile cycle). Persistence → DraftManagement + PostMetadata; ListValues is a leaf. Each submodule that needs it duplicates the small translated/2, blank_to_nil/1, csv_to_list/1 helpers locally per the established convention. Submodules use Phoenix.Component.assign/3 directly (only DraftManagement needs it). The 400-line target was not reachable while keeping all 16 public event handlers + build + HEEx helpers in the coordinator. Validates clean: mix compile --warnings-as-errors, mix dialyzer --format short (0 errors), mix test (342 tests, 0 failures, 4 skipped).

2026-05-05

  • God modules:
    • BDS.Desktop.ShellLive.MenuEditor 871 → 335 (62 %). Submodules under lib/bds/desktop/shell_live/menu_editor/: TreeOps (296, home_item/home_item_id + ui_item + persisted_item + first_item_id + insert_target + path_prefix? + find_path + item_at_path + items_at_path + replace_items_at_path + update_item + insert_item + remove_item + remove_item_with_value + append_child + move_selected + indent_selected + unindent_selected + delete_selected + drop_selected + insert_dropped_item), TreePredicates (55, can_move_up?/can_move_down?/can_indent?/can_unindent?/can_delete? + draft_item?), DraftManagement (132, current_draft + start_page_draft + start_category_draft + finalize_submenu_draft + assign_page_to_draft + assign_category_to_draft + cancel_draft + confirm_category_draft), PageCategory (58, page_posts + page_post + filter_page_posts + category_options + filter_categories + blank_to_nil), State (85, ensure_state + update_state + build + save + load_state). Coordinator keeps the 11 public event handlers (assign_socket, select_item, change_entry, submit_entry, cancel_entry, select_page, select_category, toolbar_action, drop_item, handle_keydown), the 3 HEEx components (menu_editor, menu_tree_level, kind_icon), and the render-time helpers (translated, row_label, kind_label, editing_title/hint/placeholder); draft_item?/2 is exposed via defdelegate so HEEx call sites stay unchanged. Cross-submodule deps are linear: State → PageCategory + TreeOps + TreePredicates; DraftManagement → PageCategory + TreeOps; TreePredicates → TreeOps; PageCategory and TreeOps are leaves. confirm_category_draft/2 takes the State.update_state function as an argument to avoid a cycle. Validates clean: mix compile --warnings-as-errors, mix dialyzer --format short (0 errors), mix test (342 tests, 0 failures, 4 skipped).

2026-05-04

  • God modules:
    • BDS.Rendering 838 → 33 (96 %). Submodules under lib/bds/rendering/: LinksAndLanguages (131, canonical_post_path_by_slug + canonical_media_path_by_source_path + post_path/2,3 + link_contexts/4 + link_context + language_prefix + normalize_language), TemplateSelection (153, load_template_source + select_template + published_template_body + render_template + load_bundled_template_source + maybe_load_bundled_template_source + bundled_template_slug + template_render_context), Metadata (113, project_metadata + menu_items + to_template_menu_item + menu_item_href + blog_languages + tag_color_by_name + alternate_links + backlinks + default_pico_stylesheet_href + href_for_language + calendar_initial_year + calendar_initial_month), PostRendering (167, post_assigns + load_post_record + canonical_post_record + canonical_post_id + post_data_json + post_data_json_value + build_post_context + render_post_content), ListArchive (295, list_assigns + not_found_assigns + normalize_list_posts + normalize_pagination + normalize_archive_context + build_day_blocks + min_date + max_date + show_archive_range_heading? + calendar_initial_year_from_posts + calendar_initial_month_from_posts). Coordinator now contains only the 3 public renders (render_post_page/3, render_list_page/2, render_not_found_page/1,2) which delegate to TemplateSelection.load_template_source, TemplateSelection.render_template, and the appropriate assigns builder (PostRendering.post_assigns, ListArchive.list_assigns, ListArchive.not_found_assigns). Cross-submodule deps are linear: ListArchive → PostRendering + Metadata + TemplateSelection + LinksAndLanguages; PostRendering → Metadata + TemplateSelection + LinksAndLanguages; Metadata → LinksAndLanguages; TemplateSelection + LinksAndLanguages have no internal deps.

2026-05-03

  • God modules:
    • BDS.Desktop.ShellLive.ImportEditor 1436 → 776 (46 %). Submodules under lib/bds/desktop/shell_live/import_editor/: ConflictResolution (50, change_conflict_resolution + update_conflict_resolution + update_conflict_bucket), TaxonomyEditing (206, start/cancel/save/clear_taxonomy_edit + analyze_taxonomy_ai + update_taxonomy_mapping + rebuild_taxonomy_stats + stat_key + apply_taxonomy_mappings + apply_taxonomy_mapping_bucket + existing_taxonomy_terms + normalize_taxonomy_mapping_value + auto_mapped_count + taxonomy_pill_class + taxonomy_item_editing? + taxonomy_mapping_tooltip + maybe_put_option), AnalysisState (248, change_definition + select_uploads_folder + select_and_analyze + note_analysis_progress + finish_analysis + handle_analysis_task_down + importable_counts + importable_entity_count + detail_items + default_analysis_state + default_sections + default_author + suggested_definition_name + maybe_put + allow_repo_sandbox + translate_phase), ProgressTracking (246, execute_import + note_execution_progress + finish_execution + handle_task_down + default_execution_state + execution_progress_width + decompose_progress_detail + to_string_or_nil + format_eta + translate_execution_phase). Components (import_editor, conflict_section, post_detail_section, media_detail_section, stat_card, other_stat_card, media_stat_card, taxonomy_stat_card, taxonomy_group) stay in main file (587 lines of HEEx); main also keeps assign_socket/1, toggle_section/3, toggle_model_selector/2, select_ai_model/3, and the small selected_model/selected_model_label/preferred_model helpers tied to assign_socket. Public API preserved via defdelegate for the 14 event handlers called from BDS.Desktop.ShellLive. ProgressTracking calls back into AnalysisState for default_author/1, importable_counts/1, allow_repo_sandbox/1, and the :analysis branch of handle_task_down/6. The 600-line target was not reachable while keeping all 9 components in the main file (components alone are 587 lines).

2026-05-02

2026-05-02

  • God modules:
    • BDS.Media 993 → 324 (67 %). Submodules under lib/bds/media/: FileOps (150, attr/maybe_put/blank_to_nil/atomic_write/delete_file_if_present/list_matching_files/media_file_path/detect_mime/image_dimensions/image_mime?/progress callbacks), Thumbnails (165, thumbnail_paths/regenerate_thumbnails/regenerate_missing_thumbnails/ensure_thumbnails/delete_thumbnail_files + private render/write helpers), Sidecars (329, write_sidecar/write_translation_sidecar/parse_canonical_sidecar/parse_translation_sidecar/upsert_media_from_sidecar/upsert_translation_from_sidecar + sync/import-orphan public API + translation_sidecar_path/canonical_sidecar?/translation_sidecar?/binary_path_for_translation_sidecar/binary_exists_for_sidecar?), Linking (125, list_linked_posts/link_media_to_post/unlink_media_from_post/linked_post_ids), Rebuilder (82, rebuild_media_from_files/2). Public API preserved via defdelegate; coordinator keeps import_media/update_media/delete_media/upsert_media_translation/delete_media_translation/replace_media_file/list_media_translations and uses import only: for shared helpers.

2026-05-01

  • God modules:
    • BDS.Maintenance 810 → 141 (83 %). Submodules under lib/bds/maintenance/: Progress (45), FileScan (158), DiffComputation (93), DiffReports (315), Repair (145). Coordinator keeps the 4 public entrypoints (repair_metadata_diff/4, import_metadata_diff_orphans/3, rebuild_from_filesystem/3, metadata_diff/2); submodules wired via import only:.
    • BDS.Scripting.Capabilities 1715 → 194 (89 %). Submodules: Util (301), Posts (270), Media (254), Crud (284), Projects (204), AppShell (134), Bridges (176). Public for_project/2 preserved.
    • Fixed real race in test/bds/desktop/shell_live_test.exs:1149 (metadata-diff editor open) — was diagnosed as flake but was a missing completed_task!(task.id) synchronization between the worker :DOWN and the next :refresh_task_status tick.

2026-04-30

  • God modules:
    • BDS.AI 1711 → 168 (90 %). Submodules: Chat (597), OneShot (382), Catalog (306), ChatTools (271), Runtime (100), SettingsStore (78). Public API preserved via defdelegate.
    • BDS.Posts 1781 → 569 (68 %). Submodules: Slugs (86), AutoTranslation (176), FileSync (146), TranslationValidation (464), RebuildFromFiles (320), Translations (279). Public API preserved via defdelegate.
    • BDS.Generation 2651 → 647 (76 %). Submodules: Outputs (490), Validation (445), Data (352), Sitemap (280), Paths (262), Renderers (227), Progress (96), Pagefind (70), GeneratedFileHash (23). import only: used to keep call sites unchanged.
    • BDS.Desktop.ShellLive 2607 → 1545 (41 %). Submodules: TitlebarMenu, CliSync, PanelRenderer, TabHelpers, TaskLocalization, ChatSurface, SidebarCreate, Layout, ShellCommandRunner, SessionUtil. Coordinator now holds only mount/3, render/1, handle_event/3, handle_info/2.
    • Side fix: test/bds/maintenance_test.exs had hardcoded posts/2026/04/... paths; added explicit File.mkdir_p! calls for the orphan-file fixtures.
  • Side effects in transactions (BDS.Media): every Repo.transaction/1 block in lib/bds/media.ex refactored — DB writes inside, filesystem + Search.sync_* after commit. Functions touched: import_media/1, update_media/2, upsert_media_translation/3, delete_media_translation/2, replace_media_file/2, link_media_to_post/2, unlink_media_from_post/2. Spec correction: delete_media_translation/2 returns {:ok, boolean()} | {:error, …}.
  • String.to_atom DoS: BDS.MCP.atomize_keys/1 deleted; the two accept_proposal sites pass string-keyed maps directly to Media.update_media/2 and Posts.update_post/2, both of which already accept %{optional(atom()) => term(), optional(String.t()) => term()}.
  • Raw SQL on post_media: introduced BDS.Posts.PostMedia schema with unique_constraint([:post_id, :media_id]); migrated 8 raw-query sites in BDS.Media, BDS.Posts, BDS.Desktop.ShellLive.PostEditor, BDS.Desktop.ShellLive.OverlayComponents to typed Ecto queries.
  • @spec for core contexts: added specs and @type t to BDS.Projects, BDS.Posts, BDS.Media, BDS.Search, BDS.Publishing, BDS.Generation, BDS.Metadata, BDS.MCP, BDS.AI and their schemas. Bugs surfaced: Search.list_stemmer_languages/0 return shape, Media.sync_media_sidecar/1 returns :ok, Media.replace_media_file/2 can return {:ok, nil}, removed unreachable fall-through clauses in BDS.Posts auto-translate cascades and BDS.Desktop.ShellLive.ChatEditor.blank?/1.

Validation gate after every change: mix compile --warnings-as-errors clean, mix dialyzer --format short 0 errors, mix test 342 tests / 0 failures / 4 skipped.

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