import yaml
from os.path import dirname

# BASE = dirname('/home/hendrik/git/list-of-game/src/build.py')
BASE = dirname(__file__) + '/src'
MAX_WIDTH = 64
MAX_WIDTH_TITLE = 40
MAX_WIDTH_PLATFORM = 4
MAX_WIDTH_NAME = 54
TITLE_PADDING = 7
DELIMITER = "|   :|"

# split strings longer than length into a list
# strings are split at last index of delim
def split_to_list(str, length, delim=' '):
    l = []

    while len(str) > length:
        sep = str.rfind(delim, 0, length)
        l.append(str[0:sep])
        str = str[sep+1:]
        
    l.append(str)

    return l

# build_header using section title
def build_header(l_title):
    header = []

    len_title = len(l_title[0])
    pad, pad_left = divmod(MAX_WIDTH - (len_title + (TITLE_PADDING * 2)) - 2, 2)
    len_border = len_title + ((TITLE_PADDING * 2) - 2)
    
    # upper part
    header.append(' ' * (pad + pad_left + 2) + '_' * len_border + ' ' * (pad + 2))
    header.append('_' * (pad + pad_left) + '//' + ' ' * len_border + '\\\\' + '_' * pad)
    # ' ' padded Title
    count = 1
    for title in l_title:
        c_pad = '_' if count == len(l_title) else ' '
        pad_right = len_title - len(title)
        header.append(c_pad * (pad + pad_left) + '|' + ' ' * TITLE_PADDING + title + ' ' * (TITLE_PADDING + pad_right) + '|' + c_pad * pad)
        count += 1
    # lower part
    header.append(' ' * (pad + pad_left) + '\\\\' + '_' * len_border + '//' + ' ' * pad)
    header.append(' ' * MAX_WIDTH)

    return header

def build_index(yaml, prefix):
    l_title = []
    for item in yaml:
        l_title += [item['title']]

    l_index = []
    for i, item in enumerate(l_title):
        l_index += [' - ' + item.ljust(MAX_WIDTH - 10) + f'[{prefix}{i+1}00] ']

    l_index += [' ' * MAX_WIDTH]

    return l_index

def build_game(name, platform):
    s_platform = platform.ljust(MAX_WIDTH_PLATFORM)
    s_name = name.ljust(MAX_WIDTH_NAME)
    
    return f' {s_platform} | {s_name} '

#
# main
#

def main():
    print('go')
    with open(f'{BASE}/todo.yaml', 'r') as file:
        todo_yaml = yaml.safe_load(file)

    with open(f'{BASE}/finished.yaml', 'r') as file:
        finished_yaml = yaml.safe_load(file)

    #
    # Section: TO-DO
    #
    
    todo_result = []

    todo_result += build_header(['List of Shame'])

    todo_result += build_index(todo_yaml, 'S')

    for section in todo_yaml:
        s_title = section['title']
        l_title = []

        if len(s_title) > MAX_WIDTH_TITLE:
            l_title = split_to_list(s_title, MAX_WIDTH_TITLE)
        else:
            l_title = [s_title]
        
        # Create section header
        todo_result += build_header(l_title)
        
        # Create table header
        todo_result += [' ______ ________________________________________________________',
                        '|======|========================================================']

        # Add games one by one
        # Prefix : |
        for game in section['games']:
            s_name = game['name']
            s_platform = game['platform']

            if len(s_platform) > MAX_WIDTH_PLATFORM:
                raise Exception(f"Platform shortcode for {s_name} is longer than 4 characters. Cannot parse...")
            
            if len(s_name) > MAX_WIDTH_NAME:
                l_name = split_to_list(s_name, MAX_WIDTH_NAME)
                for i,i_name in enumerate(l_name):
                    todo_result += ['|' + build_game(i_name, s_platform if i == 0 else '')]
            else:
                todo_result += ['|' + build_game(s_name, s_platform)]

        # Close table header
        todo_result += ['|______|________________________________________________________',
                        ' ' * MAX_WIDTH]
    
    #
    # Section: Finished
    #

    finished_result = []

    finished_result += build_header(['List of Pride'])

    finished_result += build_index(finished_yaml, 'P')

    for section in finished_yaml:
        s_title = section['title']
        l_title = []

        if len(s_title) > MAX_WIDTH_TITLE:
            l_title = split_to_list(s_title, MAX_WIDTH_TITLE)
        else:
            l_title = [s_title]
        
        # Create section header
        finished_result += build_header(l_title)
        
        # Create table header
        finished_result += ['______ ________________________________________________________ ',
                            '======|========================================================|']

        # Add games one by one
        # Suffix : |
        for game in section['games']:
            s_name = game['name']
            s_platform = game['platform']

            if len(s_platform) > MAX_WIDTH_PLATFORM:
                raise Exception(f"Platform shortcode for {s_name} is longer than 4 characters. Cannot parse...")
            
            if len(s_name) > MAX_WIDTH_NAME:
                l_name = split_to_list(s_name, MAX_WIDTH_NAME)
                for i,i_name in enumerate(l_name):
                    finished_result += [build_game(i_name, platform if i == 0 else '') + '|']
            else:
                finished_result += [build_game(s_name, s_platform) + '|']

        # Close table header
        finished_result += ['______|________________________________________________________|',
                        ' ' * MAX_WIDTH]

    # adjust length of both sides
    len_difference = len(todo_result) - len(finished_result)
    # todo > finished
    if len_difference > 0:
        finished_result += [' ' * MAX_WIDTH] * len_difference
    # todo < finished
    elif len_difference < 0:
        len_difference *= -1
        todo_result += [' ' * MAX_WIDTH] * len_difference

    if len(todo_result) != len(finished_result):
        raise Exception("Results are not of equal size. Something went wrong...")
    
    result = []
    i = 0
    while len(todo_result) > i:
        result += [todo_result[i] + DELIMITER + finished_result[i]]
        i += 1
    
    with open('list-of-game.txt', 'w') as file:
        for i in result:
            file.write(f"{i}\n")

    # for i in result:
    #     print(i)
    
    return

if __name__ == "__main__":
    main()