"""Tests de los helpers de persistencia JSONL append-only."""

import json
from datetime import UTC, datetime
from pathlib import Path
from uuid import uuid4

from agentforge_core.api.persistence import (
    append_execution,
    append_violation,
    read_execution_summaries,
    read_violations,
)
from agentforge_core.domain.execution import AgentExecution
from agentforge_core.domain.guardrail import GuardrailViolation


def _violation() -> GuardrailViolation:
    return GuardrailViolation(
        trace_id=uuid4(),
        timestamp=datetime.now(UTC),
        stage="input",
        validator="DetectPII",
        severity="block",
        message="email detectado",
        blocked=True,
    )


def _execution(status: str = "completed") -> AgentExecution:
    return AgentExecution(
        trace_id=uuid4(),
        agent_name="incident_analyzer",
        agent_version="v1",
        status=status,  # type: ignore[arg-type]
        started_at=datetime.now(UTC),
        finished_at=datetime.now(UTC),
        decision_path=[],
        violations=[],
        proposed_actions=[],
        needs_human_for=None,
        final_output={},
        error=None,
    )


def test_append_violation_escribe_jsonl(tmp_path: Path) -> None:
    append_violation(tmp_path, _violation())
    line = (tmp_path / "violations.jsonl").read_text(encoding="utf-8").strip()
    assert json.loads(line)["validator"] == "DetectPII"


def test_append_execution_es_append_only(tmp_path: Path) -> None:
    append_execution(tmp_path, _execution())
    append_execution(tmp_path, _execution())
    lines = (tmp_path / "executions.jsonl").read_text(encoding="utf-8").strip().splitlines()
    assert len(lines) == 2


def test_read_violations_filtra_lineas_vacias(tmp_path: Path) -> None:
    append_violation(tmp_path, _violation())
    with (tmp_path / "violations.jsonl").open("a", encoding="utf-8") as f:
        f.write("\n")
    out = read_violations(tmp_path)
    assert len(out) == 1
    assert out[0].validator == "DetectPII"


def test_read_violations_inexistente_devuelve_vacio(tmp_path: Path) -> None:
    assert read_violations(tmp_path) == []
    assert read_execution_summaries(tmp_path) == []


def test_read_execution_summaries_resume_campos(tmp_path: Path) -> None:
    append_execution(tmp_path, _execution())
    summaries = read_execution_summaries(tmp_path)
    assert len(summaries) == 1
    s = summaries[0]
    assert s.agent_name == "incident_analyzer"
    assert s.status == "completed"
    assert s.n_violations == 0
    assert s.n_proposed_actions == 0