3 Commits

Author	SHA1	Message	Date
Jason	5c3aca18eb	refactor(backend): implement transaction mechanism and i18n errors for provider service ... This commit completes phase 4 service layer extraction by introducing: 1. **Transaction mechanism with 2PC (Two-Phase Commit)**: - Introduced `run_transaction()` wrapper with snapshot-based rollback - Implemented `LiveSnapshot` enum to capture and restore live config files - Added `PostCommitAction` to separate config.json persistence from live file writes - Applied to critical operations: add, update, switch providers - Ensures atomicity: memory + config.json + live files stay consistent 2. **Internationalized error handling**: - Added `AppError::Localized` variant with key + zh + en messages - Implemented `AppError::localized()` helper function - Migrated 24 error sites to use i18n-ready errors - Enables frontend to display errors in user's preferred language 3. **Concurrency optimization**: - Fixed `get_custom_endpoints()` to use read lock instead of write lock - Ensured async IO operations (usage query) execute outside lock scope - Added defensive RAII lock management with explicit scope blocks 4. **Code organization improvements**: - Reduced commands/provider.rs from ~800 to ~320 lines (-60%) - Expanded services/provider.rs with transaction infrastructure - Added unit tests for validation and credential extraction - Documented legacy file cleanup logic with inline comments 5. **Backfill mechanism refinement**: - Ensured live config is synced back to memory before switching - Maintains SSOT (Single Source of Truth) architecture principle - Handles Codex dual-file (auth.json + config.toml) atomically Breaking changes: None (internal refactoring only) Performance: Improved read concurrency, no measurable overhead from snapshots Test coverage: Added validation tests, updated service layer tests	2025-10-28 17:47:15 +08:00
Jason	7e27f88154	refactor(backend): phase 4 - add test hooks and extend service layer ... - Extract internal functions in commands/mcp.rs and commands/provider.rs to enable unit testing without Tauri context - Add test hooks: set_mcp_enabled_test_hook, import_mcp_from_claude_test_hook, import_mcp_from_codex_test_hook, import_default_config_test_hook - Migrate error types from String to AppError for precise error matching in tests - Extend ProviderService with delete() method to unify Codex/Claude cleanup logic - Add comprehensive test coverage: - tests/mcp_commands.rs: command-level tests for MCP operations - tests/provider_service.rs: service-level tests for switch/delete operations - Run cargo fmt to fix formatting issues (EOF newlines) - Update BACKEND_REFACTOR_PLAN.md to mark phase 3 complete	2025-10-28 11:58:57 +08:00
Jason	c2e8855a0f	refactor(backend): phase 4 - extract provider service layer ... Architecture improvements: - Extract ProviderService with switch/backfill/write methods - Reduce command layer from 160 to 13 lines via delegation - Separate business logic (services) from state management (commands) - Introduce precise error handling with structured validation Refactoring details: - Split Codex/Claude switching into symmetric private methods - Add multi-layer validation for Codex auth field (existence + type) - Extract import_config_from_path for command and test reuse - Expose export_config_to_file and ProviderService in public API Test coverage: - Add 10+ integration tests for Claude/Codex switching flows - Cover import/export success and failure scenarios (JSON parse, missing file) - Verify state consistency on error paths (current remains unchanged) - Test snapshot backfill for both old and new providers after switching	2025-10-28 10:47:48 +08:00