"""
Regression tests for agent command extraction and curriculum sampling behavior.
"""

from agent.baseline_agent import BaselineAgent
from agent.devops_agent import DevOpsAgent
from training.curriculum import CurriculumScheduler


def test_extract_command_strips_common_prefixes_and_comments():
    agent = DevOpsAgent(model_name="rule-based")

    assert agent._extract_command("1. pip install flask") == "pip install flask"
    assert agent._extract_command("Command: pip install flask") == "pip install flask"
    assert agent._extract_command("Step 1: pip install flask") == "pip install flask"
    assert agent._extract_command("pip install flask  # install dependency") == "pip install flask"


def test_devops_agent_service_handler_uses_extracted_port():
    agent = DevOpsAgent(model_name="rule-based")
    error = "Connection refused on port 9090"

    cmd = agent._handle_service_not_running(error, history=[])
    assert cmd == "python /app/server.py --port 9090 &"


def test_baseline_agent_service_handler_uses_extracted_port():
    agent = BaselineAgent()
    error = "Connection refused on port 9090"

    cmd = agent._fix_service_not_running(error, history=[])
    assert cmd == "python /app/server.py --port 9090 &"


def test_curriculum_sample_level_non_frontier_half_never_returns_newest(monkeypatch):
    scheduler = CurriculumScheduler()
    scheduler._unlocked[2] = True

    monkeypatch.setattr("training.curriculum.random.random", lambda: 0.9)
    monkeypatch.setattr("training.curriculum.random.choice", lambda levels: levels[0])

    sampled = scheduler.sample_level()
    assert sampled == 1


def test_curriculum_sample_level_frontier_half_returns_newest(monkeypatch):
    scheduler = CurriculumScheduler()
    scheduler._unlocked[2] = True

    monkeypatch.setattr("training.curriculum.random.random", lambda: 0.1)

    sampled = scheduler.sample_level()
    assert sampled == 2