"""Tests for runtime backup creation."""

import json
import sqlite3
from datetime import UTC, datetime

import atocore.config as config
from atocore.models.database import init_db
from atocore.ops.backup import create_runtime_backup


def test_create_runtime_backup_copies_db_and_registry(tmp_path, monkeypatch):
    monkeypatch.setenv("ATOCORE_DATA_DIR", str(tmp_path / "data"))
    monkeypatch.setenv("ATOCORE_BACKUP_DIR", str(tmp_path / "backups"))
    monkeypatch.setenv(
        "ATOCORE_PROJECT_REGISTRY_PATH", str(tmp_path / "config" / "project-registry.json")
    )

    registry_path = tmp_path / "config" / "project-registry.json"
    registry_path.parent.mkdir(parents=True)
    registry_path.write_text('{"projects":[{"id":"p01-example","aliases":[],"ingest_roots":[{"source":"vault","subpath":"incoming/projects/p01-example"}]}]}\n', encoding="utf-8")

    original_settings = config.settings
    try:
        config.settings = config.Settings()
        init_db()
        with sqlite3.connect(str(config.settings.db_path)) as conn:
            conn.execute("INSERT INTO projects (id, name) VALUES (?, ?)", ("p01", "P01 Example"))
            conn.commit()

        result = create_runtime_backup(datetime(2026, 4, 6, 18, 0, 0, tzinfo=UTC))
    finally:
        config.settings = original_settings

    db_snapshot = tmp_path / "backups" / "snapshots" / "20260406T180000Z" / "db" / "atocore.db"
    registry_snapshot = (
        tmp_path / "backups" / "snapshots" / "20260406T180000Z" / "config" / "project-registry.json"
    )
    metadata_path = (
        tmp_path / "backups" / "snapshots" / "20260406T180000Z" / "backup-metadata.json"
    )

    assert result["db_snapshot_path"] == str(db_snapshot)
    assert db_snapshot.exists()
    assert registry_snapshot.exists()
    assert metadata_path.exists()

    with sqlite3.connect(str(db_snapshot)) as conn:
        row = conn.execute("SELECT name FROM projects WHERE id = ?", ("p01",)).fetchone()
    assert row[0] == "P01 Example"

    metadata = json.loads(metadata_path.read_text(encoding="utf-8"))
    assert metadata["registry_snapshot_path"] == str(registry_snapshot)


def test_create_runtime_backup_handles_missing_registry(tmp_path, monkeypatch):
    monkeypatch.setenv("ATOCORE_DATA_DIR", str(tmp_path / "data"))
    monkeypatch.setenv("ATOCORE_BACKUP_DIR", str(tmp_path / "backups"))
    monkeypatch.setenv(
        "ATOCORE_PROJECT_REGISTRY_PATH", str(tmp_path / "config" / "project-registry.json")
    )

    original_settings = config.settings
    try:
        config.settings = config.Settings()
        init_db()
        result = create_runtime_backup(datetime(2026, 4, 6, 19, 0, 0, tzinfo=UTC))
    finally:
        config.settings = original_settings

    assert result["registry_snapshot_path"] == ""