import unittest
from unittest.mock import MagicMock, patch
from datetime import datetime, timedelta
import json
import os
import csv
from tamigo import get_worked_days, TamigoClient

class TestTamigoExport(unittest.TestCase):
    def setUp(self):
        self.client = MagicMock(spec=TamigoClient)
        self.client.session_token = "fake-token"

    def test_get_worked_days_processing(self):
        # Mock API response
        mock_shifts = [
            {
                "Date": "/Date(1741651200000)/", # 2025-03-11
                "ActualShiftHours": 8.5,
                "ActualShiftText": "Work",
                "IsAbsent": False
            },
            {
                "StartTime": "2025-03-10T09:00:00Z",
                "EndTime": "2025-03-10T17:00:00Z",
                "ActualShiftHours": 0,
                "IsAbsent": False
            }
        ]
        self.client.get_employee_actual_shifts.return_value = mock_shifts
        
        start_date = datetime(2025, 3, 1)
        end_date = datetime(2025, 3, 15)
        
        with patch('tamigo.console'):
            work_days = get_worked_days(self.client, start_date, end_date)
        
        self.assertIsNotNone(work_days)
        self.assertIn("2025-03-11", work_days)
        self.assertEqual(work_days["2025-03-11"]["hours"], 8.5)
        self.assertIn("2025-03-10", work_days)
        self.assertEqual(work_days["2025-03-10"]["hours"], 8.0)

    def test_get_worked_days_zero_hour_filtering(self):
        # Mock API response with a 0-hour shift (missing EndTime so it stays 0)
        mock_shifts = [
            {
                "Date": "/Date(1741564800000)/", # 2025-03-10
                "StartTime": "2025-03-10T09:00:00Z",
                "ActualShiftHours": 0,
                "ActualShiftText": "Sick Day",
                "IsAbsent": False
            }
        ]
        self.client.get_employee_actual_shifts.return_value = mock_shifts
        start_date = datetime(2025, 3, 1)
        end_date = datetime(2025, 3, 15)

        # 1. Test with show_zero_hours = False (Default)
        with patch('tamigo.console'), patch('tamigo.current_config', {'show_zero_hours': False}):
            work_days = get_worked_days(self.client, start_date, end_date)
        self.assertEqual(len(work_days), 0)

        # 2. Test with show_zero_hours = True
        with patch('tamigo.console'), patch('tamigo.current_config', {'show_zero_hours': True}):
            work_days = get_worked_days(self.client, start_date, end_date)
        self.assertEqual(len(work_days), 1)
        self.assertIn("2025-03-10", work_days)
        self.assertEqual(work_days["2025-03-10"]["hours"], 0)

    @patch('tamigo.select_date_range')
    @patch('tamigo.get_worked_days')
    @patch('questionary.select')
    @patch('questionary.text')
    @patch('tamigo.console')
    def test_export_worked_hours_csv(self, mock_console, mock_text, mock_select, mock_get_worked, mock_date_range):
        from tamigo import export_worked_hours
        
        mock_date_range.return_value = (datetime(2025, 3, 1), datetime(2025, 3, 15))
        mock_get_worked.return_value = {
            "2025-03-11": {"hours": 8.5, "text": "Work"},
            "2025-03-10": {"hours": 8.0, "text": "Work"}
        }
        
        mock_select.return_value.ask.return_value = "CSV"
        mock_text.return_value.ask.return_value = "test_export.csv"
        
        export_worked_hours(self.client)
        
        self.assertTrue(os.path.exists("test_export.csv"))
        with open("test_export.csv", "r") as f:
            reader = csv.reader(f)
            rows = list(reader)
            self.assertEqual(rows[0], ["Date", "Hours", "Details"])
            # CSV rows might be in different order if dict keys are not sorted, but sorted() was used in code
            self.assertEqual(rows[1], ["2025-03-10", "8.00", "Work"])
            self.assertEqual(rows[2], ["2025-03-11", "8.50", "Work"])
        
        os.remove("test_export.csv")

    @patch('tamigo.select_date_range')
    @patch('tamigo.get_worked_days')
    @patch('questionary.select')
    @patch('questionary.text')
    @patch('tamigo.console')
    def test_export_worked_hours_json(self, mock_console, mock_text, mock_select, mock_get_worked, mock_date_range):
        from tamigo import export_worked_hours
        
        mock_date_range.return_value = (datetime(2025, 3, 1), datetime(2025, 3, 15))
        mock_get_worked.return_value = {
            "2025-03-11": {"hours": 8.5, "text": "Work"},
            "2025-03-10": {"hours": 8.0, "text": "Work"}
        }
        
        mock_select.return_value.ask.return_value = "JSON"
        mock_text.return_value.ask.return_value = "test_export.json"
        
        export_worked_hours(self.client)
        
        self.assertTrue(os.path.exists("test_export.json"))
        with open("test_export.json", "r") as f:
            data = json.load(f)
            self.assertEqual(data["2025-03-11"]["hours"], 8.5)
        
        os.remove("test_export.json")

    @patch('tamigo.select_date_range')
    @patch('tamigo.get_worked_days')
    @patch('questionary.select')
    @patch('questionary.text')
    @patch('tamigo.console')
    def test_export_worked_hours_xlsx(self, mock_console, mock_text, mock_select, mock_get_worked, mock_date_range):
        from tamigo import export_worked_hours
        
        mock_date_range.return_value = (datetime(2025, 3, 1), datetime(2025, 3, 15))
        mock_get_worked.return_value = {
            "2025-03-11": {"hours": 8.5, "text": "Work"},
            "2025-03-10": {"hours": 8.0, "text": "Work"}
        }
        
        mock_select.return_value.ask.return_value = "XLSX"
        mock_text.return_value.ask.return_value = "test_export.xlsx"
        
        export_worked_hours(self.client)
        
        self.assertTrue(os.path.exists("test_export.xlsx"))
        # We could use openpyxl to verify content if we really wanted to
        import openpyxl
        wb = openpyxl.load_workbook("test_export.xlsx")
        ws = wb.active
        self.assertEqual(ws.cell(row=1, column=1).value, "Date")
        self.assertEqual(ws.cell(row=2, column=1).value, "2025-03-10")
        self.assertEqual(ws.cell(row=2, column=2).value, 8.0)
        
        os.remove("test_export.xlsx")

if __name__ == '__main__':
    unittest.main()