import gradio as gr
from flip_card import DEFAULT_EMOJIS, PRESETS, FlipCard, update_flip_card


def on_win(result: str | None, history: list[str] | None):
    if not result:
        return "", "", history or []

    history = (history or []) + [result]

    history_text = "\n".join(
        f"{i}. {item}"
        for i, item in enumerate(reversed(history[-10:]), start=1)
    )

    return result, history_text, history

def change_preset(name: str):
    emojis = PRESETS.get(name, DEFAULT_EMOJIS).copy()

    return (
        update_flip_card(emojis=emojis),
        emojis,
        ",".join(emojis),
        "",
    )

def parse_emojis(text: str | None):
    emojis = [item.strip() for item in (text or "").split(",") if item.strip()]
    emojis = list(dict.fromkeys(emojis))

    return emojis[:8] if len(emojis) >= 2 else DEFAULT_EMOJIS.copy()

def apply_custom(text: str | None):
    emojis = parse_emojis(text)

    return update_flip_card(emojis=emojis), emojis, ""

def new_game(emojis: list[str] | None):
    return update_flip_card(emojis=emojis or DEFAULT_EMOJIS.copy()), ""

with gr.Blocks() as demo:
    game = FlipCard()

    result = gr.Textbox(label="Result", interactive=False)
    history_box = gr.Textbox(label="Game History", lines=6, interactive=False)

    preset = gr.Dropdown(
        label="Preset",
        choices=list(PRESETS.keys()),
        value="Fruits",
    )
    custom = gr.Textbox(
        label="Custom Emojis",
        value="🍎,🍍",
        placeholder="Example: 🐶,🐱,🦊,🐼",
    )

    apply_btn = gr.Button("Apply Custom Emojis")
    new_btn = gr.Button("New Shuffled Game")
    current_emojis = gr.State(DEFAULT_EMOJIS.copy())
    history = gr.State([])

    game.change(
        fn=on_win,
        inputs=[game, history],
        outputs=[result, history_box, history],
    )
    preset.change(
        fn=change_preset,
        inputs=preset,
        outputs=[game, current_emojis, custom, result],
    )
    apply_btn.click(
        fn=apply_custom,
        inputs=custom,
        outputs=[game, current_emojis, result],
    )
    new_btn.click(
        fn=new_game,
        inputs=current_emojis,
        outputs=[game, result],
    )

demo.launch()