"""Tests for domain renewal functionality."""

import csv
import os
import tempfile
from datetime import date
from typing import Any

import pytest

from agenda.domains import renewal_dates, url
from agenda.event import Event


class TestRenewalDates:
    """Test the renewal_dates function."""

    def test_renewal_dates_empty_directory(self) -> None:
        """Test with empty directory."""
        with tempfile.TemporaryDirectory() as temp_dir:
            with pytest.raises(ValueError, match="max\\(\\) iterable argument is empty"):
                renewal_dates(temp_dir)

    def test_renewal_dates_no_matching_files(self) -> None:
        """Test with directory containing no matching files."""
        with tempfile.TemporaryDirectory() as temp_dir:
            # Create some non-matching files
            with open(os.path.join(temp_dir, "other_file.csv"), "w") as f:
                f.write("test")
            with open(os.path.join(temp_dir, "not_export.csv"), "w") as f:
                f.write("test")
            
            with pytest.raises(ValueError, match="max\\(\\) iterable argument is empty"):
                renewal_dates(temp_dir)

    def test_renewal_dates_single_file(self) -> None:
        """Test with single domain export file."""
        with tempfile.TemporaryDirectory() as temp_dir:
            # Create a domain export file
            filename = "export_domains_01_15_2024_02_30_PM.csv"
            filepath = os.path.join(temp_dir, filename)
            
            # Create CSV content
            csv_data = [
                ["fqdn", "date_registry_end_utc"],
                ["example.com", "2024-06-15T00:00:00Z"],
                ["test.org", "2024-12-31T00:00:00Z"]
            ]
            
            with open(filepath, "w", newline="") as f:
                writer = csv.writer(f)
                writer.writerows(csv_data)
            
            result = renewal_dates(temp_dir)
            
            assert len(result) == 2
            
            # Check first domain
            assert result[0].name == "domain"
            assert result[0].title == "🌐 example.com"
            assert result[0].date == date(2024, 6, 15)
            assert result[0].url == url + "example.com"
            
            # Check second domain
            assert result[1].name == "domain"
            assert result[1].title == "🌐 test.org"
            assert result[1].date == date(2024, 12, 31)
            assert result[1].url == url + "test.org"

    def test_renewal_dates_multiple_files_latest_used(self) -> None:
        """Test that the latest file is used when multiple exist."""
        with tempfile.TemporaryDirectory() as temp_dir:
            # Create older file
            older_filename = "export_domains_01_15_2024_02_30_PM.csv"
            older_filepath = os.path.join(temp_dir, older_filename)
            older_csv_data = [
                ["fqdn", "date_registry_end_utc"],
                ["old.com", "2024-06-15T00:00:00Z"]
            ]
            with open(older_filepath, "w", newline="") as f:
                writer = csv.writer(f)
                writer.writerows(older_csv_data)
            
            # Create newer file
            newer_filename = "export_domains_01_16_2024_03_45_PM.csv"
            newer_filepath = os.path.join(temp_dir, newer_filename)
            newer_csv_data = [
                ["fqdn", "date_registry_end_utc"],
                ["new.com", "2024-08-20T00:00:00Z"]
            ]
            with open(newer_filepath, "w", newline="") as f:
                writer = csv.writer(f)
                writer.writerows(newer_csv_data)
            
            result = renewal_dates(temp_dir)
            
            # Should only get data from newer file
            assert len(result) == 1
            assert result[0].title == "🌐 new.com"
            assert result[0].date == date(2024, 8, 20)

    def test_renewal_dates_empty_csv(self) -> None:
        """Test with empty CSV file."""
        with tempfile.TemporaryDirectory() as temp_dir:
            filename = "export_domains_01_15_2024_02_30_PM.csv"
            filepath = os.path.join(temp_dir, filename)
            
            # Create CSV with only headers
            csv_data = [["fqdn", "date_registry_end_utc"]]
            
            with open(filepath, "w", newline="") as f:
                writer = csv.writer(f)
                writer.writerows(csv_data)
            
            result = renewal_dates(temp_dir)
            assert result == []

    def test_renewal_dates_directory_not_found(self) -> None:
        """Test error handling when directory doesn't exist."""
        with pytest.raises(FileNotFoundError):
            renewal_dates("/nonexistent/directory")

    def test_renewal_dates_malformed_filename(self) -> None:
        """Test with malformed filename that can't be parsed."""
        with tempfile.TemporaryDirectory() as temp_dir:
            # Create file with name that starts correctly but can't be parsed as date
            filename = "export_domains_invalid_date.csv"
            filepath = os.path.join(temp_dir, filename)
            
            with open(filepath, "w") as f:
                f.write("test")
            
            # Should raise ValueError when trying to parse the malformed date
            with pytest.raises(ValueError, match="time data .* does not match format"):
                renewal_dates(temp_dir)

    def test_renewal_dates_various_date_formats(self) -> None:
        """Test with various date formats in the CSV."""
        with tempfile.TemporaryDirectory() as temp_dir:
            filename = "export_domains_01_15_2024_02_30_PM.csv"
            filepath = os.path.join(temp_dir, filename)
            
            csv_data = [
                ["fqdn", "date_registry_end_utc"],
                ["example1.com", "2024-06-15T12:34:56Z"],
                ["example2.com", "2024-12-31T00:00:00+00:00"],
                ["example3.com", "2024-03-20T23:59:59.999Z"]
            ]
            
            with open(filepath, "w", newline="") as f:
                writer = csv.writer(f)
                writer.writerows(csv_data)
            
            result = renewal_dates(temp_dir)
            
            assert len(result) == 3
            assert result[0].date == date(2024, 6, 15)
            assert result[1].date == date(2024, 12, 31)
            assert result[2].date == date(2024, 3, 20)


class TestConstants:
    """Test module constants."""

    def test_url_constant(self) -> None:
        """Test that URL constant has expected value."""
        expected_url = "https://admin.gandi.net/domain/01578ef0-a84b-11e7-bdf3-00163e6dc886/"
        assert url == expected_url