"""CLI + module tests for scheduled agent execution (ADR-005, WP-0006)."""

from __future__ import annotations

import json
from pathlib import Path

import pytest
from click.testing import CliRunner

from kaizen_agentic.cli import cli
from kaizen_agentic.schedule import (
    ScheduleError,
    parse_schedule,
    schedule_path,
    validate_schedule,
)


@pytest.fixture
def runner() -> CliRunner:
    return CliRunner()


@pytest.fixture
def project_dir(tmp_path: Path) -> Path:
    root = tmp_path / "demo-project"
    root.mkdir()
    return root


class TestScheduleModule:
    def test_parse_requires_version(self):
        with pytest.raises(ScheduleError):
            parse_schedule({"agents": {}})

    def test_parse_rejects_non_mapping(self):
        with pytest.raises(ScheduleError):
            parse_schedule(["not", "a", "mapping"])

    def test_validate_flags_unknown_agent_and_bad_cadence(self):
        schedule = parse_schedule(
            {
                "version": "1",
                "agents": {
                    "coach": {"cadence": "weekly", "enabled": True},
                    "made-up": {"cadence": "hourly"},
                },
            }
        )
        errors = validate_schedule(schedule, known_agents=["coach", "optimization"])
        assert any("hourly" in e for e in errors)
        assert any("made-up" in e for e in errors)

    def test_validate_clean_schedule(self):
        schedule = parse_schedule(
            {"version": "1", "agents": {"coach": {"cadence": "weekly"}}}
        )
        assert validate_schedule(schedule, known_agents=["coach"]) == []


class TestScheduleCli:
    def test_init_creates_default_schedule(self, runner: CliRunner, project_dir: Path):
        result = runner.invoke(cli, ["schedule", "init", "--target", str(project_dir)])
        assert result.exit_code == 0
        path = schedule_path(project_dir)
        assert path.exists()
        assert "coach" in path.read_text()

    def test_init_no_overwrite_without_force(
        self, runner: CliRunner, project_dir: Path
    ):
        runner.invoke(cli, ["schedule", "init", "--target", str(project_dir)])
        result = runner.invoke(cli, ["schedule", "init", "--target", str(project_dir)])
        assert result.exit_code == 0
        assert "already exists" in result.output

    def test_validate_passes_on_default(self, runner: CliRunner, project_dir: Path):
        runner.invoke(cli, ["schedule", "init", "--target", str(project_dir)])
        result = runner.invoke(
            cli, ["schedule", "validate", "--target", str(project_dir)]
        )
        assert result.exit_code == 0
        assert "valid" in result.output

    def test_validate_missing_file_errors(self, runner: CliRunner, project_dir: Path):
        result = runner.invoke(
            cli, ["schedule", "validate", "--target", str(project_dir)]
        )
        assert result.exit_code == 1

    def test_validate_rejects_bad_schema(self, runner: CliRunner, project_dir: Path):
        path = schedule_path(project_dir)
        path.parent.mkdir(parents=True, exist_ok=True)
        path.write_text("version: '1'\nagents:\n  not-an-agent:\n    cadence: weekly\n")
        result = runner.invoke(
            cli, ["schedule", "validate", "--target", str(project_dir)]
        )
        assert result.exit_code == 1
        assert "not-an-agent" in result.output

    def test_list_shows_enabled(self, runner: CliRunner, project_dir: Path):
        runner.invoke(cli, ["schedule", "init", "--target", str(project_dir)])
        result = runner.invoke(cli, ["schedule", "list", "--target", str(project_dir)])
        assert result.exit_code == 0
        assert "coach" in result.output
        # tdd-workflow is disabled by default; hidden without --all
        assert "tdd-workflow" not in result.output

    def test_list_all_shows_disabled(self, runner: CliRunner, project_dir: Path):
        runner.invoke(cli, ["schedule", "init", "--target", str(project_dir)])
        result = runner.invoke(
            cli, ["schedule", "list", "--all", "--target", str(project_dir)]
        )
        assert "tdd-workflow" in result.output

    def test_prepare_markdown_includes_agent_prompt(
        self, runner: CliRunner, project_dir: Path
    ):
        result = runner.invoke(
            cli, ["schedule", "prepare", "coach", "--target", str(project_dir)]
        )
        assert result.exit_code == 0
        assert "Scheduled Run Orientation: coach" in result.output
        assert "## Agent Prompt" in result.output
        assert "Coach Agent" in result.output
        assert "## Session Close" in result.output

    def test_prepare_json_format(self, runner: CliRunner, project_dir: Path):
        result = runner.invoke(
            cli,
            [
                "schedule",
                "prepare",
                "coach",
                "--target",
                str(project_dir),
                "--format",
                "json",
            ],
        )
        assert result.exit_code == 0
        payload = json.loads(result.output)
        assert payload["agent"] == "coach"
        assert payload["agent_prompt_found"] is True
        assert payload["session_close"]

    def test_prepare_unknown_agent_notes_missing(
        self, runner: CliRunner, project_dir: Path
    ):
        result = runner.invoke(
            cli,
            ["schedule", "prepare", "no-such-agent", "--target", str(project_dir)],
        )
        assert result.exit_code == 0
        assert "not found in registry" in result.output

    def test_prepare_includes_memory_when_present(
        self, runner: CliRunner, project_dir: Path
    ):
        runner.invoke(cli, ["memory", "init", "coach", "--target", str(project_dir)])
        result = runner.invoke(
            cli, ["schedule", "prepare", "coach", "--target", str(project_dir)]
        )
        assert "## Project Memory" in result.output
        assert "Project Context" in result.output