default persistent.old_endings = None
default persistent.endings = None

# Store the general chapters inside an array for easy manipulation
define general_chapters = [
    "chapter_1", "chapter_2", "chapter_3", "chapter_4", "chapter_5",
    "chapter_6", "chapter_7", "chapter_8", "chapter_9", "chapter_10", "chapter_11"
]

define ending_routes = {
    4: ["chapter_11D", "chapter_12D", "chapter_12_5D", "chapter_13D", "chapter_14D"],
    3: ["chapter_11C", "chapter_12C", "chapter_12_5C", "chapter_13C", "chapter_14C"],
    2: ["chapter_11B", "chapter_12B", "chapter_13B", "chapter_14B"],
    1: ["chapter_11A", "chapter_12A", "chapter_12_5D", "chapter_13A", "chapter_14A"]
}


default chapters_array_length = len(general_chapters) - 1

default chapter_index = 0 # Index number for the current position of the general chapters array

# This stores the name of the label as a string
# When starting a new game, it takes the first element of the general_chapters array
default current_general_chapter = general_chapters[chapter_index]

default ending_route_number = None
default current_ending_chapter = None
default ending_chapter_index = 0


init -1 python:
    def ending_image():
        #0b0000, DCBA, flash the bits with |=, check with &
        endings = 0b0000
        _e = 0b1
        for i in range(1, 5):
            fn = "e"+str(i)+"of4"
            endings |= (_e * renpy.seen_image(fn))
            _e = _e << 0b1
        persistent.old_endings = persistent.endings
        persistent.endings = endings


init python:

    def next_story_chapter():
        global chapter_index
        global current_general_chapter
        global ending_route_number

        if is_end_of_chapters():
            ending_route_number = get_ending()
            reset_debug_scores()
            next_ending_chapter()
            # return

        chapter_index += 1
        current_general_chapter = general_chapters[chapter_index]

        renpy.call(current_general_chapter)

    
    def is_end_of_chapters():
        return chapter_index >= chapters_array_length


    def next_ending_chapter():
        global ending_route_number
        global ending_chapter_index
        global current_ending_chapter

        if ending_route_number in ending_routes:
            # Save the ending chapters array from
            # the ending_routes dictionary
            current_ending_list: list[str] = ending_routes[ending_route_number]

            if ending_chapter_index < len(current_ending_list):
                # Stores the label name from the current_ending_list array in the item variable
                current_ending_chapter = current_ending_list[ending_chapter_index]
                # The item is assigned first and then increase the ending_chapter_index as it can't be done after using renpy.jump()

                # Increases the index and jumps to the label
                ending_chapter_index += 1
                renpy.jump(current_ending_chapter)
            else: # We've reached the end of the final chapters
                ending_image()
                renpy.call("lending")
        else:
            return


    def reset_debug_scores():
        if config.developer and persistent.enable_debug_scores:
            debug_story_variables(False)
            debug_story_variables(True, True)