#!/usr/bin/env python3
from textual.app import ComposeResult
from textual.widgets import (
    Header,
    Footer,
    Label,
    Input,
    Select,
    Button,
    Markdown,
)
from textual.containers import Container
from textual.screen import Screen

class NucleonCreatorScreen(Screen):
    BINDINGS = [("q", "go_back", "返回"), ("escape", "quit_app", "退出")]

    def __init__(self) -> None:
        super().__init__(name=None, id=None, classes=None)

    def compose(self) -> ComposeResult:
        yield Header(show_clock=True)
        with Container(id="vice_container"):
            yield Label(f"[b]新建空的单元集\n")
            yield Markdown("1. 键入单元集名称")
            yield Input(placeholder="单元集名称")
            yield Markdown("> 单元集名称不应与现有单元集重复, 新的单元集文件将创建在 ./nucleon/你输入的名称.toml")
            yield Label(f"\n")
            yield Markdown("2. 选择单元集类型")
            LINES = """
单一字符串
主字符串(带有附加属性)
动态单元集(使用宏)
""".splitlines()
            yield Select.from_values(LINES, prompt="选择类型")
            yield Label(f"\n")
            yield Markdown("3. 输入附加元数据 (可选)")
            yield Input(placeholder="作者")
            yield Input(placeholder="内容描述")
            yield Button(
                "新建空单元集",
                id="submit_button",
                variant="primary",
                classes="start-button",
            )
        yield Footer()

    def action_go_back(self):
        self.app.pop_screen()

    def action_quit_app(self):
        self.app.exit()

    def on_button_pressed(self, event) -> None:
        pass