import type { RenderAdapter } from '@/core/render/adapter';
import type { LayerGroupAnimate } from '@/core/render/preset/animate';
import type {
    LayerDoorAnimate,
    LayerFloorBinder
} from '@/core/render/preset/floor';
import type { HeroRenderer } from '@/core/render/preset/hero';
import type { Layer } from '@/core/render/preset/layer';
import type { TimingFn } from 'mutate-animate';
import { BlockMover, heroMoveCollection, MoveStep } from '@/game/state/move';
import type { FloorViewport } from '@/core/render/preset/viewport';

// 向后兼容用，会充当两个版本间过渡的作用

interface Adapters {
    'hero-adapter'?: RenderAdapter<HeroRenderer>;
    'door-animate'?: RenderAdapter<LayerDoorAnimate>;
    animate?: RenderAdapter<LayerGroupAnimate>;
    layer?: RenderAdapter<Layer>;
    viewport?: RenderAdapter<FloorViewport>;
}

const adapters: Adapters = {};

export function init() {
    const hook = Mota.require('var', 'hook');
    const loading = Mota.require('var', 'loading');
    let fallbackIds: number = 1e8;

    if (!main.replayChecking && main.mode === 'play') {
        const Adapter = Mota.require('module', 'Render').RenderAdapter;
        const hero = Adapter.get<HeroRenderer>('hero-adapter');
        const doorAnimate = Adapter.get<LayerDoorAnimate>('door-animate');
        const animate = Adapter.get<LayerGroupAnimate>('animate');
        const layer = Adapter.get<Layer>('layer');
        const viewport = Adapter.get<FloorViewport>('viewport');

        adapters['hero-adapter'] = hero;
        adapters['door-animate'] = doorAnimate;
        adapters['animate'] = animate;
        adapters['layer'] = layer;
        adapters['viewport'] = viewport;
    }

    const { mover: heroMover } = heroMoveCollection;

    // ----- 工具函数

    /**
     * 根据事件中给出的移动数组解析出全部的移动步骤
     */
    function getMoveSteps(steps: string[]) {
        const moveSteps: string[] = [];
        steps.forEach(v => {
            const [type, number] = v.split(':');
            if (!number) moveSteps.push(type);
            else {
                if (type === 'speed') moveSteps.push(v);
                else {
                    moveSteps.push(...Array(number).fill(type));
                }
            }
        });

        return moveSteps;
    }

    function setHeroDirection(dir: Dir) {
        if (!heroMover.moving) heroMover.moveDir = dir;
    }

    /**
     * 生成跳跃函数
     */
    function generateJumpFn(dx: number, dy: number): TimingFn<3> {
        const distance = Math.hypot(dx, dy);
        const peak = 3 + distance;

        return (progress: number) => {
            const x = dx * progress;
            const y = progress * dy + (progress ** 2 - progress) * peak;

            return [x, y, Math.ceil(y)];
        };
    }

    Mota.r(() => {
        // ----- 勇士移动相关
        control.prototype.moveAction = async function (callback?: () => void) {
            heroMover.clearMoveQueue();
            heroMover.oneStep('forward');
            const lock = core.status.lockControl;
            const controller = heroMover.startMove(false, true, lock);
            controller?.onEnd.then(() => {
                callback?.();
            });
            heroMover.once('stepEnd', () => {
                controller?.stop();
            });
        };

        control.prototype._moveAction_moving = function (
            callback?: () => void
        ) {};

        events.prototype._action_moveAction = function (
            data: any,
            x: number,
            y: number,
            prefix: any
        ) {
            if (core.canMoveHero()) {
                var nx = core.nextX(),
                    ny = core.nextY();
                // 检查noPass决定是撞击还是移动
                if (core.noPass(nx, ny)) {
                    core.insertAction([{ type: 'trigger', loc: [nx, ny] }]);
                } else {
                    // 先移动一格，然后尝试触发事件
                    core.insertAction([
                        {
                            type: 'function',
                            function:
                                'function() { core.moveAction(core.doAction); }',
                            async: true
                        },
                        { type: '_label' }
                    ]);
                }
            }
            core.doAction();
        };

        events.prototype.eventMoveHero = async function (
            steps: string[],
            time: number = 500,
            callback?: () => void
        ) {
            if (heroMover.moving) return;
            const moveSteps = getMoveSteps(steps);

            const resolved = moveSteps.map<MoveStep>(v => {
                if (v.startsWith('speed')) {
                    return { type: 'speed', value: Number(v.slice(6)) };
                } else {
                    return { type: 'dir', value: v as Move2 };
                }
            });
            const start: MoveStep = { type: 'speed', value: time };

            heroMover.insertMove(...[start, ...resolved]);
            const controller = heroMover.startMove();
            controller?.onEnd.then(() => {
                callback?.();
            });
        };

        control.prototype.setHeroLoc = function (
            name: 'x' | 'y' | 'direction',
            value: number | Dir,
            noGather?: boolean
        ) {
            if (!core.status.hero) return;
            // @ts-ignore
            core.status.hero.loc[name] = value;
            if ((name === 'x' || name === 'y') && !noGather) {
                this.gatherFollowers();
            }
            if (name === 'direction') {
                adapters['hero-adapter']?.sync('turn', value);
                adapters['hero-adapter']?.sync('setAnimateDir', value);
                setHeroDirection(value as Dir);
            } else if (name === 'x') {
                adapters['hero-adapter']?.sync('setHeroLoc', value);
            } else {
                adapters['hero-adapter']?.sync('setHeroLoc', void 0, value);
            }
        };

        ////// 停止勇士的一切行动，等待勇士行动结束后，再执行callback //////
        control.prototype.waitHeroToStop = function (callback?: () => void) {
            core.stopAutomaticRoute();
            core.clearContinueAutomaticRoute();

            if (heroMover.controller) {
                heroMover.controller.stop().then(() => {
                    callback?.();
                });
            } else {
                callback?.();
            }
        };

        control.prototype.moveHero = async function (
            direction?: Dir,
            callback?: () => void
        ) {
            if (heroMover.moving) return;
            heroMover.clearMoveQueue();
            heroMover.oneStep(direction ?? 'forward');
            const lock = core.status.lockControl;
            const controller = heroMover.startMove(false, true, lock);
            controller?.onEnd.then(() => {
                callback?.();
            });
            heroMover.once('stepEnd', () => {
                controller?.stop();
            });
        };

        events.prototype.setHeroIcon = function (name: ImageIds) {
            const img = core.material.images.images[name];
            if (!img) return;
            adapters['hero-adapter']?.sync('setImage', img);
        };

        control.prototype.isMoving = function () {
            return heroMover.moving;
        };

        ////// 设置自动寻路路线 //////
        control.prototype.setAutomaticRoute = function (
            destX: number,
            destY: number,
            stepPostfix: DiredLoc[]
        ) {
            if (!core.status.played || core.status.lockControl) return;
            if (this._setAutomaticRoute_isMoving(destX, destY)) return;
            if (this._setAutomaticRoute_isTurning(destX, destY, stepPostfix))
                return;
            if (
                this._setAutomaticRoute_clickMoveDirectly(
                    destX,
                    destY,
                    stepPostfix
                )
            )
                return;
            // 找寻自动寻路路线
            const moveStep = core.automaticRoute(destX, destY);
            if (
                moveStep.length == 0 &&
                (destX != core.status.hero.loc.x ||
                    destY != core.status.hero.loc.y ||
                    stepPostfix.length == 0)
            )
                return;
            moveStep.push(...stepPostfix);
            core.status.automaticRoute.destX = destX;
            core.status.automaticRoute.destY = destY;
            this._setAutomaticRoute_drawRoute(moveStep);
            this._setAutomaticRoute_setAutoSteps(moveStep);

            // 执行移动
            const steps: MoveStep[] = moveStep.map(v => {
                return { type: 'dir', value: v.direction };
            });
            heroMover.clearMoveQueue();
            heroMover.insertMove(...steps);
            heroMover.startMove();
        };

        // ----- 开关门
        events.prototype.openDoor = function (
            x: number,
            y: number,
            needKey: boolean,
            callback?: () => void
        ) {
            var block = core.getBlock(x, y);
            core.saveAndStopAutomaticRoute();
            if (!this._openDoor_check(block, x, y, needKey)) {
                var locked = core.status.lockControl;
                core.waitHeroToStop(function () {
                    if (!locked) core.unlockControl();
                    if (callback) callback();
                });
                return;
            }
            if (core.status.replay.speed === 24) {
                core.status.replay.animate = true;
                core.removeBlock(x, y);
                setTimeout(function () {
                    core.status.replay.animate = false;
                    Mota.require('var', 'hook').emit(
                        'afterOpenDoor',
                        block.event.id,
                        x,
                        y
                    );
                    if (callback) callback();
                }, 1); // +1是为了录像检测系统
            } else {
                const locked = core.status.lockControl;
                core.lockControl();
                core.status.replay.animate = true;
                core.removeBlock(x, y);

                const cb = () => {
                    core.maps._removeBlockFromMap(core.status.floorId, block);
                    if (!locked) core.unlockControl();
                    core.status.replay.animate = false;
                    hook.emit('afterOpenDoor', block.event.id, x, y);
                    callback?.();
                };

                adapters['door-animate']?.all('openDoor', block).then(cb);

                const animate = fallbackIds++;
                core.animateFrame.lastAsyncId = animate;
                core.animateFrame.asyncId[animate] = cb;
                this._openDoor_animate(block, x, y, callback);
            }
        };

        events.prototype.closeDoor = function (
            x: number,
            y: number,
            id: AllIds,
            callback?: () => void
        ) {
            id = id || '';
            if (
                // @ts-ignore
                (core.material.icons.animates[id] == null &&
                    // @ts-ignore
                    core.material.icons.npc48[id] == null) ||
                core.getBlock(x, y) != null
            ) {
                if (callback) callback();
                return;
            }
            var block = core.getBlockById(id);
            var doorInfo = (block.event || {}).doorInfo;
            if (!doorInfo) {
                if (callback) callback();
                return;
            }

            core.playSound(doorInfo.closeSound);

            const locked = core.status.lockControl;
            core.lockControl();
            core.status.replay.animate = true;
            const cb = function () {
                if (!locked) core.unlockControl();
                core.status.replay.animate = false;
                core.setBlock(id, x, y);
                core.showBlock(x, y);
                callback?.();
            };

            if (core.status.replay.speed === 24) {
                cb();
            } else {
                adapters['door-animate']?.all('closeDoor', block).then(() => {
                    cb();
                });

                const animate = fallbackIds++;
                core.animateFrame.lastAsyncId = animate;
                core.animateFrame.asyncId[animate] = cb;
                this._openDoor_animate(block, x, y, callback);
            }
        };

        // ----- animate & hero animate
        ////// 绘制动画 //////
        maps.prototype.drawAnimate = function (
            name: AnimationIds,
            x: number,
            y: number,
            alignWindow?: boolean,
            callback?: () => void
        ) {
            // @ts-ignore
            name = core.getMappedName(name);

            // 正在播放录像：不显示动画
            if (
                core.isReplaying() ||
                !core.material.animates[name] ||
                x == null ||
                y == null
            ) {
                if (callback) callback();
                return -1;
            }

            adapters.animate
                ?.all(
                    'drawAnimate',
                    name,
                    x * 32 + 16,
                    y * 32 + 16,
                    alignWindow ?? false
                )
                .then(() => {
                    callback?.();
                });
        };

        maps.prototype.drawHeroAnimate = function (
            name: AnimationIds,
            callback?: () => void
        ) {
            // @ts-ignore
            name = core.getMappedName(name);

            // 正在播放录像或动画不存在：不显示动画
            if (core.isReplaying() || !core.material.animates[name]) {
                if (callback) callback();
                return -1;
            }

            adapters.animate?.global('drawHeroAnimate', name).then(() => {
                callback?.();
            });
        };

        // 移动跳跃图块 & 跳跃勇士
        maps.prototype.moveBlock = async function (
            x: number,
            y: number,
            steps: string[],
            time: number = 500,
            keep: boolean = false,
            callback?: () => void
        ) {
            if (!steps || steps.length === 0) {
                callback?.();
                return;
            }
            const block = core.getBlock(x, y);
            if (!block) {
                callback?.();
                return;
            }
            const mover = new BlockMover(x, y, core.status.floorId, 'event');
            const moveSteps = getMoveSteps(steps);
            const resolved = moveSteps.map<MoveStep>(v => {
                if (v.startsWith('speed')) {
                    return { type: 'speed', value: Number(v.slice(6)) };
                } else {
                    return { type: 'dir', value: v as Move2 };
                }
            });
            const start: MoveStep = { type: 'speed', value: time };
            mover.insertMove(...[start, ...resolved]);
            const controller = mover.startMove();

            if (controller) {
                await controller.onEnd;
            }

            if (!keep) {
                core.removeBlock(mover.x, mover.y);
            }
            callback?.();
        };

        ////// 显示跳跃某块的动画，达到{"type":"jump"}的效果 //////
        maps.prototype.jumpBlock = async function (
            sx: number,
            sy: number,
            ex: number,
            ey: number,
            time: number = 500,
            keep: boolean = false,
            callback?: () => void
        ) {
            const block = core.getBlock(sx, sy);
            if (!block) {
                callback?.();
                return;
            }
            time /= core.status.replay.speed;
            if (core.status.replay.speed === 24) time = 1;
            const dx = ex - sx;
            const dy = ey - sy;

            const fn = generateJumpFn(dx, dy);

            const list = adapters.layer?.items ?? [];
            const items = [...list].filter(v => {
                if (v.layer !== 'event') return false;
                const ex = v.getExtends('floor-binder') as LayerFloorBinder;
                if (!ex) return false;
                return ex.getFloor() === core.status.floorId;
            });
            const width = core.status.thisMap.width;
            const index = sx + sy * width;

            const promise = Promise.all(
                items.map(v => {
                    return v.moveAs(index, ex, ey, fn, time, keep);
                })
            );

            core.updateStatusBar();
            core.removeBlock(sx, sy);
            await promise;
            if (keep) {
                core.setBlock(block.id, ex, ey);
            }
            core.updateStatusBar();

            callback?.();
        };

        events.prototype.jumpHero = async function (
            ex: number,
            ey: number,
            time: number = 500,
            callback?: () => void
        ) {
            console.log(heroMover.moving);

            if (heroMover.moving) return;

            const sx = core.getHeroLoc('x');
            const sy = core.getHeroLoc('y');
            adapters.viewport?.all('mutateTo', ex, ey);

            const locked = core.status.lockControl;
            core.lockControl();
            const list = adapters['hero-adapter']?.items ?? [];
            const items = [...list];

            time /= core.status.replay.speed;
            if (core.status.replay.speed === 24) time = 1;
            const fn = generateJumpFn(ex - sx, ey - sy);
            await Promise.all(
                items.map(v => {
                    if (!v.renderable) return Promise.reject();
                    return v.layer.moveRenderable(
                        v.renderable,
                        sx,
                        sy,
                        fn,
                        time
                    );
                })
            );
            console.log(ex, ey);

            if (!locked) core.unlockControl();
            core.setHeroLoc('x', ex);
            core.setHeroLoc('y', ey);
            callback?.();
        };

        // ----- 视角处理

        ////// 瞬间移动 //////
        control.prototype.moveDirectly = function (
            destX: number,
            destY: number,
            ignoreSteps: number
        ) {
            const data = this.controldata;
            const success = data.moveDirectly(destX, destY, ignoreSteps);
            if (success) adapters.viewport?.all('mutateTo', destX, destY);
            return success;
        };
    });

    loading.once('loaded', () => {
        for (const animate of Object.values(core.material.animates)) {
            animate.se ??= {};
            if (typeof animate.se === 'string') {
                animate.se = { 1: animate.se };
            }
            animate.pitch ??= {};
        }
    });

    // 复写录像的移动
    core.registerReplayAction('move', action => {
        if (
            action === 'up' ||
            action === 'down' ||
            action === 'left' ||
            action === 'right'
        ) {
            // const { noPass, canMove } = checkCanMove();
            // const { nx, ny } = getNextLoc();
            // if (noPass || !canMove) {
            //     if (canMove) core.trigger(nx, ny);
            // } else {
            //     core.setHeroLoc('x', nx);
            //     core.setHeroLoc('y', ny);
            //     core.setHeroLoc('direction', action);
            // }

            // setTimeout(core.replay, 100);

            return true;
        } else {
            return false;
        }
    });

    // return { readyMove, endMove, move };
}