"""Tests for automaton.dashboard.core.stats."""

from pathlib import Path

import pytest

from automaton.dashboard.core.stats import TaskStats
from automaton.dashboard.core.task import determine_task_state


def _task(name: str, tmp_path: Path, artifacts: dict[str, str]) -> object:
    from automaton.dashboard.core.task import Task

    task_dir = tmp_path / name
    task_dir.mkdir(parents=True)
    for filename, content in artifacts.items():
        (task_dir / filename).write_text(content)
    state, artifact_map = determine_task_state(task_dir)
    return Task(name=name, folder_path=task_dir, state=state, artifacts=artifact_map)


def test_empty_stats() -> None:
    stats = TaskStats([])
    assert stats.total_tasks == 0
    assert stats.pass_rate == 0.0
    assert stats.fail_rate == 0.0


def test_counts(tmp_path: Path) -> None:
    tasks = [
        _task("done-1", tmp_path, {"VERDICT.md": "## Status: PASS"}),
        _task("done-2", tmp_path, {"VERDICT.md": "## Status: PASS"}),
        _task("blocked", tmp_path, {"VERDICT.md": "## Status: FAIL"}),
        _task("research", tmp_path, {"SPEC.md": "# Spec"}),
    ]
    stats = TaskStats(tasks)
    assert stats.total_tasks == 4
    assert stats.pass_count == 2
    assert stats.fail_count == 1
    assert stats.in_progress_count == 1
    assert stats.backlog_count == 0
    assert stats.pass_rate == 50.0


def test_sub_task_stats(tmp_path: Path) -> None:
    from automaton.dashboard.core.task import SubTask, TaskState

    parent = _task("parent", tmp_path, {"SPEC.md": "# Spec"})
    parent.sub_tasks = [
        SubTask(name="a", state=TaskState.DONE, has_spec=True, has_verdict=True, verdict_status="PASS"),
        SubTask(name="b", state=TaskState.BLOCKED, has_spec=True, has_verdict=True, verdict_status="FAIL"),
    ]
    stats = TaskStats([parent])
    assert stats.sub_task_stats == {
        "parent": {"total": 2, "passed": 1, "failed": 1, "needs_review": 0, "incomplete": 0}
    }