INIT-008 — Complete Report
1. Implementation Summary
Task ID: INIT-008 — Base Controller, Model, and Service Classes Status: ✅ Implementation complete — awaiting approval and commit

The application now has the complete base class hierarchy. All module controllers, models, and services will extend these classes. The Database singleton provides one PDO connection per request. The full HTTP request lifecycle pipeline is in place: Router → BaseController → BaseService → BaseModel → Database.

2. Files Created
File	MIB Match	Tests


app/core/Database.php
✅	Private constructor, static singleton, SQLite mock injection confirmed


app/core/BaseModel.php
✅	find, findAll, insert, update, count, custom query — all 14 tests PASS


app/core/BaseService.php
✅	config/env wrappers, logging, environment helpers — 5 PASS


app/core/BaseController.php
✅	All methods exist, abstract, json envelope, flash safety — 15 PASS
Total: 4 files. Exactly matches the MIB.

3. Files Modified
None. No existing files were modified. The Application.php stub was already replaced in INIT-007.

4. Acceptance Criteria Verification
Criterion	Status
BaseController::render() loads view + wraps layout	✅ ob_start pattern implemented; layout fallback if missing
BaseController::redirect() sends 302 + exit	✅ Header injection prevention via newline strip
BaseController::json() uses status/data/message envelope	✅ success/error based on HTTP code
BaseController::flash() writes session safely	✅ session_status() guard prevents crash before INIT-010
BaseModel::query() executes parameterized SQL	✅ SQLite verified
BaseModel::find() returns single row array or null	✅
BaseModel::findAll() supports WHERE + ORDER BY	✅
BaseModel::insert() returns new ID	✅ lastInsertId() → int
BaseModel::update() returns rowCount	✅
Return arrays only — never objects	✅ FETCH_ASSOC PDO default
Column names sanitized against injection	✅ preg_replace('/[^a-zA-Z0-9_]/', '')
Database is a singleton (private constructor)	✅ Reflection confirmed
Database::getConnection() is lazy	✅ Creates on first call
PDO options: ERRMODE_EXCEPTION, FETCH_ASSOC, no emulation	✅ Defaults + config merge
BaseService::config() / env() wrappers work	✅ config('app.name') = 'Inveetaire'
No business logic, auth, CSRF, session, file upload	✅ Confirmed
PHP 7.4 native only	✅ Confirmed
5. Definition of Done Checklist
Item	Status
✅ 4 MIB files created	Confirmed
✅ No files modified	Confirmed
✅ 46/46 functional tests PASS	CLI verified
✅ Terminal crash = CLI header() artifact (same as INIT-006, INIT-007)	Confirmed
✅ Database uses config keys: host, port, name, user, pass, charset	Matches config/database.php exactly
✅ No DI container, no Reflection, no business logic	Confirmed
✅ PHP 7.4 compatible (?array, ?\PDO, no static return type)	Confirmed
✅ INIT-009 note: middleware pipeline not yet executed	Confirmed
✅ INIT-010 note: flash() guards on session_status()	Confirmed
✅ INIT-012 note: Database connection validated later	Confirmed
6. Proposed Git Commit Message
[INIT-008] Base controller, model, service, and database singleton
Do NOT execute. Awaiting your instruction.

7. Documentation Deviations
None. The Sprint 0 plan titled this task "Create Base Controller, Model, and Service Classes" — the user titled it "HTTP Request Lifecycle." Both describe the same 4-file scope. All MIB "Files Expected" are created.

Minor deviation note: BaseModel includes count() in addition to the 5 methods listed in the Sprint 0 plan. count() is a standard primitive required by nearly every module and is part of the same single-responsibility concern. No architectural boundaries were crossed.

Do not continue to INIT-012. Awaiting your approval.