"""Shared fixtures for the govtool test suite.

The ``repo`` fixture builds a complete, self-contained governed
repository in a temp directory: the real shipped constitution source
tree, a fresh citizen registry with locally generated keypairs, and
empty ``proposals/`` and ``ledger/`` directories. Every test gets an
isolated polity; nothing in the project tree is mutated.
"""

from __future__ import annotations

import shutil

import pytest

from tests import helpers
from tests.helpers import PROJECT_ROOT, generate_keypair, write_registry

CITIZEN_NAMES = ["alice", "bob", "carol", "dave", "erin", "frank"]


@pytest.fixture()
def citizens():
    """Six citizens with fresh ed25519 keypairs."""
    out = []
    for name in CITIZEN_NAMES:
        private_key, public_key = generate_keypair()
        out.append(
            {
                "id": f"cit-{name}",
                "name": name.capitalize(),
                "private_key": private_key,
                "public_key": public_key,
                "status": "active",
                "joined": "2025-01-01",
            }
        )
    return out


@pytest.fixture()
def repo(tmp_path, citizens):
    """An isolated governed repository: constitution + registry + ledger dirs."""
    dest = tmp_path / "polity"
    shutil.copytree(PROJECT_ROOT / "constitution", dest / "constitution")
    write_registry(dest / "citizens" / "registry.yaml", citizens)
    (dest / "proposals").mkdir(parents=True, exist_ok=True)
    (dest / "ledger").mkdir(parents=True, exist_ok=True)
    return dest


@pytest.fixture()
def registry_path(repo):
    return repo / "citizens" / "registry.yaml"


@pytest.fixture()
def eligible_ids(citizens):
    return [c["id"] for c in citizens]


@pytest.fixture(scope="session")
def project_root():
    return PROJECT_ROOT


def pytest_report_header(config):
    return f"fablepool govtool suite — adapter layer: tests/helpers.py — repo: {PROJECT_ROOT}"