#!/usr/bin/env python3
from textual.app import ComposeResult
from textual.widgets import Header, Footer, Label, Static, Button
from textual.containers import Center
from textual.screen import Screen
from textual.reactive import reactive
from enum import Enum, auto

from heurams.context import config_var
from heurams.kernel.reactor import *
import heurams.kernel.particles as pt
import heurams.kernel.puzzles as pz
from .. import shim

class AtomState(Enum):
    FAILED = auto()
    NORMAL = auto()

class MemScreen(Screen):
    BINDINGS = [
        ("q", "pop_screen", "返回"),
        ("p", "prev", "复习上一个"),
        ("d", "toggle_dark", "改变色调"),
        ("v", "play_voice", "朗读"),
    ]

    if config_var.get()["quick_pass"]:
        BINDINGS.append(("k", "quick_pass", "跳过"))

    def __init__(self, atoms: list, name: str | None = None, id: str | None = None, classes: str | None = None) -> None:
        super().__init__(name, id, classes)
        self.atoms = atoms
        self.phaser = Phaser(atoms)
        #print(self.phaser.state)
        self.procession: Procession = self.phaser.current_procession() # type: ignore
        #print(self.phaser.state)
        self.rating = reactive(0)


    def puzzle_widget(self):
        try:
            self.fission = Fission(self.procession.current_atom, self.phaser.state)
            puzzle_info = next(self.fission.generate())
            print(puzzle_info)
            return shim.puzzle2widget[puzzle_info["puzzle"]](atom = self.procession.current_atom, alia = puzzle_info["alia"])
        except (KeyError, StopIteration, AttributeError) as e:
            print(f"调度展开出错: {e}")
            return Static("无法生成谜题")
        #print(shim.puzzle2widget[puzzle_info["puzzle"]])

    def compose(self) -> ComposeResult:
        yield Header(show_clock=True)
        with Center():
            yield Static(f"当前进度: {self.procession.process()}/{self.procession.total_length()}")
        #self.mount(self.current_widget()) # type: ignore
        yield Container(id="puzzle-container")
        yield Button("重新学习此单元", id="re-recognize", variant="warning")
        yield Footer()

    def load_puzzle(self):
        container = self.query_one("puzzle-container")
        for i in puz_container.children:
            i.remove()
        container.mount(self.puzzle_widget())

    def on_button_pressed(self, event):
        event.stop()

    def watch_rating(self, old_value, new_value) -> None:
        forwards = 1 if new_value >= 4 else 0
        if forwards:
            self.procession.forward(1)
        self.load_puzzle()

    def action_play_voice(self):
        """朗读当前内容"""
        pass

    def action_toggle_dark(self):
        self.app.action_toggle_dark()

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