import pytest
from datetime import datetime
import tkinter as tk
from src.ui_manager import UIManager

@pytest.fixture
def root_window():
    root = tk.Tk()
    yield root
    root.destroy()

@pytest.fixture
def ui_manager(root_window):
    class DummyLogger:
        def debug(self, *a, **k): pass
        def warning(self, *a, **k): pass
        def error(self, *a, **k): pass
    return UIManager(root_window, DummyLogger())

def test_parse_dose_history_for_saving_bullet_and_delete(ui_manager):
    # Simulate user editing: add, delete, and custom lines
    date_str = "07/30/2025"
    # User deletes one line, adds a custom one
    text = """
• 09:00 AM - 150mg
• 06:00 PM - 150mg
Custom note
""".strip()
    result = ui_manager._parse_dose_history_for_saving(text, date_str)
    # Should parse both bullets and keep the custom line
    assert "2025-07-30 09:00:00:150mg" in result
    assert "2025-07-30 18:00:00:150mg" in result
    assert "Custom note" in result
    # If user deletes all, should return empty string
    assert ui_manager._parse_dose_history_for_saving("", date_str) == ""
    assert ui_manager._parse_dose_history_for_saving("No doses recorded today", date_str) == ""

def test_parse_dose_history_for_saving_simple_time(ui_manager):
    date_str = "07/30/2025"
    text = "09:00 150mg\n18:00 150mg"
    result = ui_manager._parse_dose_history_for_saving(text, date_str)
    assert "2025-07-30 09:00:00:150mg" in result
    assert "2025-07-30 18:00:00:150mg" in result

def test_parse_dose_history_for_saving_mixed(ui_manager):
    date_str = "07/30/2025"
    text = "• 09:00 AM - 150mg\n18:00 150mg\nJust a note"
    result = ui_manager._parse_dose_history_for_saving(text, date_str)
    assert "2025-07-30 09:00:00:150mg" in result
    assert "2025-07-30 18:00:00:150mg" in result
    assert "Just a note" in result