"""Tests for configuration loading and validation."""

import pytest

from src.config import load_config, setup_logging


class TestLoadConfig:
    def test_load_valid_config(self, config_file):
        config = load_config(config_file)
        assert config.targets.subreddits[0].name == "pics"
        assert config.targets.subreddits[0].limit == 25
        assert config.targets.users[0].name == "testuser"
        assert config.download.min_score == 10
        assert config.download.skip_nsfw is True
        assert config.rate_limit.requests_per_minute == 10

    def test_missing_config_raises(self):
        with pytest.raises(FileNotFoundError):
            load_config("nonexistent.yaml")

    def test_empty_targets_raises(self, tmp_path):
        config_path = tmp_path / "empty.yaml"
        config_path.write_text("targets:\n  subreddits: []\n  users: []\n")
        with pytest.raises(ValueError, match="No targets configured"):
            load_config(str(config_path))

    def test_blacklist_lowercase(self, tmp_path):
        config_path = tmp_path / "config.yaml"
        config_path.write_text("""
targets:
  subreddits:
    - name: "test"
      limit: 10
download: {}
rate_limit: {}
logging: {}
blacklist:
  authors:
    - "SpAmMeR"
  subreddits:
    - "BadSub"
  title_keywords:
    - "BUY NOW"
  domains:
    - "Evil.COM"
""")
        config = load_config(str(config_path))
        assert config.blacklist.authors == ["spammer"]
        assert config.blacklist.subreddits == ["badsub"]
        assert config.blacklist.title_keywords == ["buy now"]
        assert config.blacklist.domains == ["evil.com"]

    def test_default_values(self, tmp_path):
        config_path = tmp_path / "minimal.yaml"
        config_path.write_text("""
targets:
  subreddits:
    - name: "test"
""")
        config = load_config(str(config_path))
        assert config.download.output_dir == "./downloads"
        assert config.download.min_score == 10
        assert config.rate_limit.requests_per_minute == 10


class TestSetupLogging:
    def test_creates_logger(self, sample_config):
        logger = setup_logging(sample_config.logging)
        assert logger.name == "reddit_collector"

    def test_log_level(self, sample_config):
        import logging

        logger = setup_logging(sample_config.logging)
        assert logger.level == logging.DEBUG