# Project

## Goal
Provide a small read-only TypeScript wrapper around KeePass `.kdbx` databases using a Python bridge powered by `pykeepass`.

## Architecture
- Public API is TypeScript.
- `src/python/bridge.py` is the runtime backend and uses `pykeepass`.
- TypeScript spawns a Python process per request; there is no persistent worker yet.
- JSON is exchanged over stdin/stdout.
- Bridge errors, empty output, invalid JSON, missing files, and backend exceptions are surfaced as TypeScript errors.

## Public API
- `openKeePassDatabase(path, options)`
- `KeePassDatabase.listEntries()`
- `KeePassDatabase.findEntries(query)`
- `KeePassDatabase.listGroups()`
- `KeePassDatabase.close()` is a no-op.

## Types
- Entries expose: `title`, `username`, `password`, `url`, `notes`, optional `groupPath`, optional `otp`.
- Groups expose: `name`, `path`.
- Open options support `password` and optional `keyFile`.
- Find queries support partial matching on `title`, `username`, `url`, and `groupPath`.

## Runtime details
- Python path defaults to `.venv/bin/python3`.
- It can be overridden with `PYTHON_PATH`.
- `bun run setup:python` creates `.venv` if needed and installs `pykeepass`.
- The bridge also works with an existing project-local virtual environment.

## Fixtures and tests
- Bundled fixtures: `tests/fixtures/data.kdbx` and `tests/fixtures/empty.kdbx`.
- Companion JSON fixture: `tests/fixtures/data.kdbx.json` stores the password and expected content.
- Unit tests in `tests/unit/` mock the child process and validate bridge parsing/error handling.
- Integration tests in `tests/integration/` use `data.kdbx` to verify entries, groups, partial search, and OTP/TOTP output when `pykeepass` is installed.
- The integration test runner checks for `pykeepass` and skips cleanly when it is unavailable.

## Main scripts
- `bun run test` / `bun test`
- `bun run src/example.ts`
- `bun run src/test-integration.ts`
- `bun run setup:python`

## Current direction
Keep improving failure-path coverage and keep the API minimal unless a concrete need appears.