import "./index.scss";

import { animated, to, useSpring } from "@react-spring/web";
import { Dropdown, type MenuProps } from "antd";
import classnames from "classnames";
import React, { type CSSProperties, useEffect, useRef, useState } from "react";
import { useSnapshot } from "valtio";

import type { CardMeta } from "@/api";
import {
  fetchStrings,
  getCardStr,
  sendSelectIdleCmdResponse,
  ygopro,
} from "@/api";
import { eventbus, Task } from "@/infra";
import { cardStore, CardType, Interactivity, InteractType } from "@/stores";
import { showCardModal as displayCardModal } from "@/ui/Duel/Message/CardModal";
import { YgoCard } from "@/ui/Shared";

import {
  displayCardListModal,
  displayOptionModal,
  displaySimpleSelectCardsModal,
} from "../../Message";
import { interactTypeToString } from "../../utils";
import {
  attack,
  focus,
  moveToDeck,
  moveToGround,
  moveToHand,
  moveToOutside,
  moveToToken,
} from "./springs";
import type { SpringApiProps } from "./springs/types";

const { HAND, GRAVE, REMOVED, DECK, EXTRA, MZONE, SZONE, TZONE } =
  ygopro.CardZone;

export const Card: React.FC<{ idx: number }> = React.memo(({ idx }) => {
  const state = cardStore.inner[idx];
  const snap = useSnapshot(state);

  const [styles, api] = useSpring(
    () =>
      ({
        x: 0,
        y: 0,
        z: 0,
        rx: 0,
        ry: 0,
        rz: 0,
        zIndex: 0,
        height: 0,
        focusScale: 1,
        focusDisplay: "none",
        focusOpacity: 1,
        subZ: 0,
      } satisfies SpringApiProps)
  );

  // FIXME: move不应该只根据目的地判断，还要根据先前的位置判断。例子是Token。
  const move = async (toZone: ygopro.CardZone, fromZone?: ygopro.CardZone) => {
    switch (toZone) {
      case MZONE:
      case SZONE:
        await moveToGround({ card: state, api, fromZone });
        break;
      case HAND:
        await moveToHand({ card: state, api, fromZone });
        break;
      case DECK:
      case EXTRA:
        await moveToDeck({ card: state, api, fromZone });
        break;
      case GRAVE:
      case REMOVED:
        await moveToOutside({ card: state, api, fromZone });
        break;
      case TZONE:
        // FIXME: 这里应该实现一个衍生物消散的动画，现在暂时让它在动画在展示上回到卡组
        await moveToToken({ card: state, api, fromZone });
        break;
    }
  };

  // 每张卡都需要移动到初始位置
  useEffect(() => {
    move(state.location.zone);
  }, []);

  const [highlight, setHighlight] = useState(false);
  const [classFocus, setClassFocus] = useState(false);
  // const [shadowOpacity, setShadowOpacity] = useState(0); // TODO: 透明度

  // >>> 动画 >>>
  /** 动画序列的promise */
  const animationQueue = useRef(new Promise<void>((rs) => rs()));

  const addToAnimation = (p: () => Promise<void>) =>
    new Promise((rs) => {
      animationQueue.current = animationQueue.current.then(p).then(rs);
    });

  useEffect(() => {
    eventbus.register(
      Task.Move,
      async (uuid: string, fromZone?: ygopro.CardZone) => {
        if (uuid === state.uuid) {
          await addToAnimation(() => move(state.location.zone, fromZone));
        }
      }
    );

    eventbus.register(Task.Focus, async (uuid: string) => {
      if (uuid === state.uuid) {
        await addToAnimation(async () => {
          setClassFocus(true);
          setTimeout(() => setClassFocus(false), 1000);
          await focus({ card: state, api });
        });
      }
    });

    eventbus.register(
      Task.Attack,
      async (
        uuid: string,
        directAttack: boolean,
        target?: ygopro.CardLocation
      ) => {
        if (uuid === state.uuid) {
          await addToAnimation(() =>
            attack({ card: state, api, target, directAttack })
          );
        }
      }
    );
  }, []);

  // <<< 动画 <<<

  // >>> 效果 >>>
  const idleInteractivities = snap.idleInteractivities;
  useEffect(() => {
    setHighlight(!!idleInteractivities.length);
  }, [idleInteractivities]);

  const [dropdownMenu, setDropdownMenu] = useState({
    items: [] as DropdownItem[],
  });

  // 发动效果
  // 1. 下拉菜单里面选择[召唤 / 特殊召唤 /.../效果发动]
  // 2. 如果是非效果发动，那么直接选择哪张卡(单张卡直接选择那张)
  // 3. 如果是效果发动，那么选择哪张卡，然后选择效果
  const handleDropdownMenu = (cards: CardType[], isField: boolean) => {
    const map = new Map<Interactivity<number>["interactType"], CardType[]>();
    cards.forEach((card) => {
      card.idleInteractivities.forEach(({ interactType }) => {
        if (!map.has(interactType)) {
          map.set(interactType, []);
        }
        map.get(interactType)?.push(card);
      });
    });
    const actions = [...map.entries()];
    const nonEffectActions = actions.filter(
      ([action]) => action !== InteractType.ACTIVATE
    );
    const getNonEffectResponse = (action: InteractType, card: CardType) =>
      card.idleInteractivities.find((item) => item.interactType === action)!
        .response;
    const nonEffectItem: DropdownItem[] = nonEffectActions.map(
      ([action, cards], key) => ({
        key,
        label: interactTypeToString(action),
        onClick: async () => {
          if (!isField) {
            // 单卡: 直接召唤/特殊召唤/...
            const card = cards[0];
            sendSelectIdleCmdResponse(getNonEffectResponse(action, card));
          } else {
            // 场地: 选择卡片
            // TODO: hint
            const option = await displaySimpleSelectCardsModal({
              selectables: cards.map((card) => ({
                meta: card.meta,
                location: card.location,
                response: getNonEffectResponse(action, card),
              })),
            });
            sendSelectIdleCmdResponse(option[0].response!);
          }
        },
      })
    );
    const hasEffect =
      cards.reduce(
        (prev, acc) => [
          ...prev,
          ...acc.idleInteractivities.filter(
            ({ interactType }) => interactType === InteractType.ACTIVATE
          ),
        ],
        [] as Interactivity<number>[]
      ).length > 0;
    const effectItem: DropdownItem = {
      key: nonEffectItem.length,
      label: interactTypeToString(InteractType.ACTIVATE),
      onClick: async () => {
        let card: CardType;
        if (!isField) {
          // 单卡: 直接发动这个卡的效果
          card = cards[0];
        } else {
          // 场地: 选择卡片
          // TODO: hint
          const option = await displaySimpleSelectCardsModal({
            selectables: cards
              // 过滤掉不能发效果的卡
              .filter(
                (card) =>
                  card.idleInteractivities.find(
                    ({ interactType }) => interactType === InteractType.ACTIVATE
                  ) !== undefined
              )
              .map((card) => ({
                meta: card.meta,
                location: card.location,
                card,
              })),
          });
          card = option[0].card! as any; // 一定会有的，有输入则定有输出
        }
        // 选择发动哪个效果
        handleEffectActivation(
          card.idleInteractivities
            .filter(
              ({ interactType }) => interactType === InteractType.ACTIVATE
            )
            .map((x) => ({
              desc: interactTypeToString(x.interactType),
              response: x.response,
              effectCode: x.activateIndex,
            })),
          card.meta
        );
      },
    };
    const items = [...nonEffectItem];
    hasEffect && items.push(effectItem);
    setDropdownMenu({ items });
  };

  const onClick = () => {
    const onCardClick = (card: CardType) => {
      // 中央弹窗展示选中卡牌信息
      // TODO: 同一张卡片，是否重复点击会关闭CardModal？
      displayCardModal(card);
      if (card.idleInteractivities.length) handleDropdownMenu([card], false);

      // 侧边栏展示超量素材信息
      const overlayMaterials = cardStore.findOverlay(
        card.location.zone,
        card.location.controller,
        card.location.sequence
      );
      if (overlayMaterials.length > 0) {
        displayCardListModal({
          isZone: false,
          monster: card,
        });
      }
    };

    const onFieldClick = (card: CardType) => {
      displayCardListModal({
        isZone: true,
        zone: card.location.zone,
        controller: card.location.controller,
      });
      // 收集这个zone的所有交互，并且在下拉菜单之中显示
      const cards = cardStore.at(card.location.zone, card.location.controller);
      handleDropdownMenu(cards, true);
    };

    if ([MZONE, SZONE, HAND].includes(state.location.zone)) {
      onCardClick(state);
    } else if ([EXTRA, GRAVE, REMOVED].includes(state.location.zone)) {
      onFieldClick(state);
    }
  };
  // <<< 效果 <<<

  return (
    <animated.div
      className={classnames("mat-card", { highlight })}
      style={
        {
          transform: to(
            [styles.x, styles.y, styles.z, styles.rx, styles.ry, styles.rz],
            (x, y, z, rx, ry, rz) =>
              `translate(${x}px, ${y}px) rotateX(${rx}deg) rotateZ(${rz}deg)`
          ),
          "--z": styles.z,
          "--sub-z": styles.subZ.to([0, 50, 100], [0, 200, 0]), // 中间高，两边低
          "--ry": styles.ry,
          height: styles.height,
          zIndex: styles.zIndex,
          "--focus-scale": styles.focusScale,
          "--focus-display": styles.focusDisplay,
          "--focus-opacity": styles.focusOpacity,
        } as any as CSSProperties
      }
      onClick={onClick}
    >
      <div className="card-focus" />
      <div className="card-shadow" />
      <Dropdown
        menu={dropdownMenu}
        placement="top"
        overlayClassName="card-dropdown"
        arrow
        trigger={["click"]}
        // disabled={!highlight} // TODO: 这里的disable要考虑到field的情况，比如额外卡组
      >
        <div className={classnames("card-img-wrap", { focus: classFocus })}>
          <YgoCard
            className={classnames("card-cover")}
            code={snap.code === 0 ? snap.meta.id : snap.code}
          />
          <YgoCard className="card-back" isBack />
        </div>
      </Dropdown>
      {snap.selected ? <div className="card-streamer" /> : <></>}
    </animated.div>
  );
});

// >>> 下拉菜单：点击动作 >>>
interface Interactivy {
  desc: string;
  response: number;
  effectCode: number | undefined;
}

type DropdownItem = NonNullable<MenuProps["items"]>[number] & {
  onClick: () => void;
};

const handleEffectActivation = (
  effectInteractivies: Interactivy[],
  meta?: CardMeta
) => {
  if (!effectInteractivies.length) return;
  else if (effectInteractivies.length === 1) {
    // 如果只有一个效果，点击直接触发
    sendSelectIdleCmdResponse(effectInteractivies[0].response);
  } else {
    // optionsModal
    const options = effectInteractivies.map((effect) => {
      const effectMsg =
        meta && effect.effectCode
          ? getCardStr(meta, effect.effectCode & 0xf) ?? "[:?]"
          : "[:?]";
      return {
        msg: effectMsg,
        response: effect.response,
      };
    });
    displayOptionModal(fetchStrings("!system", 556), options); // 主动发动效果，所以不需要await，但是以后可能要留心
  }
};

// <<< 下拉菜单 <<<
