"""
uv-belichter-software - Some utilities for better customization and modularization
Copyright (C) 2024  Benjamin Burkhardt

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
"""


import config as cfg
from time import sleep


"""
Very simple logging function
Overall log level can be specified in config.py
"""
def log(log_level: int, message: str):
    log_mapping = {0: "WARN", 1: "INFO", 2: "DEBUG"}
    log_level = int(log_level)  # make sure log_level is an integer
    if log_level not in [0, 1, 2]:
        print(f"[LOGGER] Got a message of unknown log level ({log_level}). Original message is printed below.")
        print(f"{message}")
    elif cfg.LOG_LEVEL >= log_level:  # if log level is valid
        print(f"[{log_mapping[log_level]}] {message}")


"""
Simple function that displays a startup "welcome" screen
Configurable in config.py
"""
def show_welcome():  # cycles says how often the startup text goes through
    cycles = cfg.STARTUP_WELCOME_CYCLES
    if cycles < 1:
        cycles = 1
        
    padding = " "*cfg.LCD_I2C_NUM_COLS
    started_str = cfg.STARTUP_MESSAGE_FINISHED
    starting_str = cfg.STARTUP_MESSAGE_STARTING
    
    
    # slide the first line over the display (animated from right to left)
    for i in range(cycles):
        line1 = padding + starting_str + padding
        line2 = cfg.STARTUP_PROJECT_NAME
        for i in range(cfg.LCD_I2C_NUM_COLS + len(starting_str)):
            cfg.LCD.putstr(line1[0:16])
            cfg.LCD.move_to(0,1)
            cfg.LCD.putstr(line2[0:16])
            line1 = line1[1:]
    
    cfg.LCD.move_to(0,0)
    cfg.LCD.putstr(started_str)
    
    # now fade down
    sleep(2)
    cfg.LCD.move_to(0,0)
    cfg.LCD.putstr(padding + started_str)
    sleep(0.1)
    cfg.LCD.clear()