"""Tests for Helix Forge correlation (WP-0004 Part 1)."""

from __future__ import annotations

import json
import sqlite3
from pathlib import Path

import pytest
from click.testing import CliRunner

from kaizen_agentic.cli import cli
from kaizen_agentic.integrations.helix import (
    HelixCorrelationAdapter,
    enrich_helix_correlation,
)


def test_enrich_helix_correlation_from_env(monkeypatch: pytest.MonkeyPatch):
    monkeypatch.setenv("HELIX_SESSION_UID", "claude:test-uid")
    monkeypatch.setenv("HELIX_REPO", "kaizen-agentic")
    monkeypatch.setenv("HELIX_FLAVOR", "claude")
    monkeypatch.setenv("HELIX_TOKENS", "9900")
    monkeypatch.setenv("HELIX_INFRA_OVERHEAD_SHARE", "0.15")

    result = enrich_helix_correlation({"success": True})

    assert result["helix_session_uid"] == "claude:test-uid"
    assert result["repo"] == "kaizen-agentic"
    assert result["flavor"] == "claude"
    assert result["tokens"] == 9900
    assert result["infra_overhead_share"] == 0.15


def test_enrich_does_not_override_existing_fields():
    record = {
        "success": True,
        "helix_session_uid": "grok:existing",
        "repo": "other-repo",
    }
    result = enrich_helix_correlation(record)
    assert result["helix_session_uid"] == "grok:existing"
    assert result["repo"] == "other-repo"


def test_adapter_stub_when_store_unconfigured():
    adapter = HelixCorrelationAdapter(store_db=None)
    summary = adapter.lookup("claude:missing")
    assert summary["adapter"] == "stub"
    assert summary["status"] == "not_configured"


def test_adapter_sqlite_lookup(tmp_path: Path):
    db_path = tmp_path / "store.db"
    conn = sqlite3.connect(db_path)
    conn.execute(
        "CREATE TABLE digests (session_uid TEXT PRIMARY KEY, json TEXT NOT NULL)"
    )
    conn.execute(
        "CREATE TABLE sessions (session_uid TEXT PRIMARY KEY, json TEXT NOT NULL)"
    )
    digest = {
        "outcome": "success",
        "cost": {"input_tokens": 800, "output_tokens": 200, "wall_clock_s": 3600},
        "tool_histogram": {"mcp__state-hub__x": 3, "Bash": 7},
        "markers": {"errors": 0, "retries": 1},
    }
    session = {"repo": "demo-app", "flavor": "claude"}
    conn.execute(
        "INSERT INTO digests VALUES (?, ?)",
        ("claude:abc", json.dumps(digest)),
    )
    conn.execute(
        "INSERT INTO sessions VALUES (?, ?)",
        ("claude:abc", json.dumps(session)),
    )
    conn.commit()
    conn.close()

    adapter = HelixCorrelationAdapter(store_db=db_path)
    summary = adapter.lookup("claude:abc")

    assert summary["adapter"] == "helix-sqlite"
    assert summary["repo"] == "demo-app"
    assert summary["flavor"] == "claude"
    assert summary["fleet_outcome"] == "success"
    assert summary["tokens"] == 1000
    assert summary["wall_clock_s"] == 3600
    assert summary["infra_overhead_share"] == 0.3


class TestHelixCorrelationCli:
    def test_record_populates_helix_uid_from_env(
        self, tmp_path: Path, monkeypatch: pytest.MonkeyPatch
    ):
        monkeypatch.setenv("HELIX_SESSION_UID", "claude:session-42")
        monkeypatch.setenv("HELIX_REPO", "kaizen-agentic")

        runner = CliRunner()
        result = runner.invoke(
            cli,
            [
                "metrics",
                "record",
                "tdd-workflow",
                "--target",
                str(tmp_path),
                "--success",
                "--time",
                "10",
            ],
        )
        assert result.exit_code == 0

        show = runner.invoke(
            cli,
            ["metrics", "show", "tdd-workflow", "--target", str(tmp_path)],
        )
        assert "claude:session-42" in show.output
        assert "kaizen-agentic" in show.output

    def test_correlate_stub_output(self):
        runner = CliRunner()
        result = runner.invoke(cli, ["metrics", "correlate", "claude:stub-uid"])
        assert result.exit_code == 0
        payload = json.loads(result.output)
        assert payload["helix_session_uid"] == "claude:stub-uid"
        assert payload["adapter"] == "stub"

    def test_brief_works_with_correlated_metrics(
        self, tmp_path: Path, monkeypatch: pytest.MonkeyPatch
    ):
        memory_dir = tmp_path / ".kaizen" / "agents" / "tdd-workflow"
        memory_dir.mkdir(parents=True)
        (memory_dir / "memory.md").write_text(
            "---\nagent: tdd-workflow\nproject: demo\nsession_count: 1\n---\n\n## Session Log\n",
            encoding="utf-8",
        )
        monkeypatch.setenv("HELIX_SESSION_UID", "claude:brief-test")

        runner = CliRunner()
        runner.invoke(
            cli,
            [
                "metrics",
                "record",
                "tdd-workflow",
                "--target",
                str(tmp_path),
                "--success",
                "--quality",
                "0.9",
            ],
        )
        brief = runner.invoke(
            cli,
            ["memory", "brief", "tdd-workflow", "--target", str(tmp_path)],
        )
        assert brief.exit_code == 0
        assert "## Performance Summary" in brief.output