import { useState, type ReactNode } from 'react';
import { Camera, Settings2 } from 'lucide-react';
import type { CameraDirection, UrdfEnhancementOptions } from '../../project/urdfToMjcf';
import { Button, Dialog, Select, Tooltip } from '../../components/ui';
import { ROBOT_PROFILES } from '../../robot/registry';

function OptionCard({
  checked,
  onChange,
  icon,
  title,
  description,
  children,
}: {
  checked: boolean;
  onChange: (checked: boolean) => void;
  icon: ReactNode;
  title: string;
  description: string;
  children?: ReactNode;
}) {
  return (
    <label
      className={`flex cursor-pointer gap-3 rounded-lg border p-3 transition-colors ${checked ? 'border-accent/60 bg-accent/10' : 'border-border bg-surface hover:bg-element-hover'}`}
    >
      <input
        className="mt-0.5 h-4 w-4 accent-accent"
        type="checkbox"
        checked={checked}
        onChange={(event) => onChange(event.target.checked)}
      />
      <span className="mt-0.5 text-text-secondary" aria-hidden="true">
        {icon}
      </span>
      <span className="min-w-0 flex-1">
        <span className="block text-sm font-medium text-text-primary">{title}</span>
        <span className="mt-1 block text-xs leading-5 text-text-secondary">{description}</span>
        {children}
      </span>
    </label>
  );
}

export function UrdfImportOptionsDialog({
  open,
  path,
  mountBodies = [],
  initialProfileId = '',
  onConfirm,
  onSkip,
}: {
  open: boolean;
  path?: string;
  mountBodies?: string[];
  initialProfileId?: string;
  onConfirm: (options: UrdfEnhancementOptions, profileId?: string) => void;
  onSkip: () => void;
}) {
  const [profileId, setProfileId] = useState(initialProfileId);
  const [options, setOptions] = useState<UrdfEnhancementOptions>(() => ({
    addActuators: true,
    addSensors: true,
    sensorType: 'camera',
    cameraMountBody:
      mountBodies.find((name) => /(head|camera|sensor|neck|头)/i.test(name)) ?? mountBodies.at(-1),
    cameraPosition: [0.1, 0, 0.05],
    cameraDirection: '+X',
  }));
  const setPosition = (axis: number, value: number) =>
    setOptions((current) => {
      const position: [number, number, number] = [...(current.cameraPosition ?? [0.1, 0, 0.05])];
      position[axis] = Number.isFinite(value) ? value : 0;
      return { ...current, cameraPosition: position };
    });
  return (
    <Dialog
      open={open}
      onClose={onSkip}
      closable={false}
      title="配置 URDF 仿真组件"
      className="max-w-xl"
      footer={
        <div className="flex justify-end gap-2">
          <Button onClick={onSkip} disabled={Boolean(profileId)}>
            不添加，直接加载
          </Button>
          <Button
            variant="primary"
            onClick={() =>
              profileId
                ? onConfirm(
                    { addActuators: false, addSensors: false, sensorType: 'camera' },
                    profileId,
                  )
                : onConfirm(options)
            }
          >
            转换并加载
          </Button>
        </div>
      }
    >
      <p className="break-words text-sm text-text-secondary">
        导入 <strong className="text-text-primary">{path}</strong> 的仿真组件
      </p>
      <div className="mt-4 space-y-3">
        <label className="block text-sm">
          机器人 profile（可选）
          <Select
            aria-label="URDF 机器人 profile"
            value={profileId}
            className="mt-1 w-full"
            onChange={(e) => setProfileId(e.target.value)}
          >
            <option value="">不启用（通用转换）</option>
            <option value="MobileManipulator-LeKiwi-v1">LeKiwi v1 · 移动操作训练场景</option>
            <option value="MobileManipulator-LeKiwi-Bundle">
              LeKiwi Bundle · 移动操作训练场景
            </option>
            {ROBOT_PROFILES.map((p) => (
              <option key={p.id} value={p.id}>
                {p.label}
              </option>
            ))}
          </Select>
        </label>
        {profileId.startsWith('MobileManipulator-') && (
          <p className="text-xs text-warning">
            加载抓取物体与搬运目标；进入控制台 →
            强化学习任务即可一键训练。移动操作模式不启用外部控制桥。
          </p>
        )}
        {profileId && !profileId.startsWith('MobileManipulator-') && (
          <p className="text-xs text-warning">
            将校验模型语义与网格：允许换色、格式等非机械变体，拒绝关节拓扑、轴向、尺寸等变化。采用浮动基座、简化被动滚子/碰撞和九路伺服；不使用下方通用组件，不启用相机。
          </p>
        )}
        <fieldset
          disabled={Boolean(profileId)}
          className={profileId ? 'space-y-3 opacity-50' : 'space-y-3'}
        >
          <OptionCard
            checked={options.addActuators}
            onChange={(addActuators) => setOptions((value) => ({ ...value, addActuators }))}
            icon={<Settings2 className="h-4 w-4" />}
            title="为关节添加驱动器"
            description="生成不限幅 motor 控制输入：hinge 为 N·m，slide 为 N。已有驱动器不重复添加。"
          />
          <OptionCard
            checked={options.addSensors}
            onChange={(addSensors) => setOptions((value) => ({ ...value, addSensors }))}
            icon={<Camera className="h-4 w-4" />}
            title="添加传感器"
            description="在浮动基座添加三轴陀螺仪和三轴加速度计（6轴 IMU），并添加一台 640×480 固定摄像头。"
          />
          {options.addSensors && (
            <div className="border-t border-border pt-3">
              <div className="mb-2 text-xs font-medium text-text-primary">摄像头安装参数</div>
              <label className="block text-xs text-text-secondary">
                <span className="mb-1 block">固连 Body</span>
                <Select
                  aria-label="摄像头固连 Body"
                  className="w-full"
                  value={options.cameraMountBody ?? ''}
                  onChange={(event) =>
                    setOptions((value) => ({
                      ...value,
                      cameraMountBody: event.target.value || undefined,
                    }))
                  }
                >
                  {mountBodies.length ? (
                    mountBodies.map((name) => (
                      <option key={name} value={name}>
                        {name}
                      </option>
                    ))
                  ) : (
                    <option value="">自动选择头部/末端 Body</option>
                  )}
                </Select>
              </label>
              <div className="mt-3 grid grid-cols-3 gap-2">
                {(['X', 'Y', 'Z'] as const).map((axis, index) => (
                  <label key={axis} className="text-xs text-text-secondary">
                    <span className="mb-0.5 flex items-center gap-1">
                      <span className={`axis-badge axis-${axis.toLowerCase()}`}>{axis}</span>
                      位置（m）
                    </span>
                    <input
                      aria-label={`摄像头位置 ${axis}`}
                      className="field technical-value h-8 w-full px-1.5 text-xs"
                      type="number"
                      step="0.01"
                      value={(options.cameraPosition ?? [0.1, 0, 0.05])[index]}
                      onChange={(event) => setPosition(index, Number(event.target.value))}
                    />
                  </label>
                ))}
              </div>
              <label className="mt-3 block text-xs text-text-secondary">
                <span className="mb-1 block">镜头朝向（Body 局部轴）</span>
                <Select
                  aria-label="摄像头朝向"
                  className="w-full"
                  value={options.cameraDirection ?? '+X'}
                  onChange={(event) =>
                    setOptions((value) => ({
                      ...value,
                      cameraDirection: event.target.value as CameraDirection,
                    }))
                  }
                >
                  {(['+X', '-X', '+Y', '-Y', '+Z', '-Z'] as CameraDirection[]).map((direction) => (
                    <option key={direction}>{direction}</option>
                  ))}
                </Select>
              </label>
              <Tooltip content="位置和朝向相对于所选 Body；ROS 摄像头通常 +X 朝前、+Z 朝上">
                <span tabIndex={0} className="mt-2 inline-block text-xs text-text-tertiary">
                  安装坐标说明
                </span>
              </Tooltip>
            </div>
          )}
        </fieldset>
      </div>
      <p className="mt-4 text-xs text-text-tertiary">
        自动组件只写入浏览器内生成的 MJCF，不会修改本地 URDF 文件；使用“原生
        URDF”加载模式时不会注入这些组件。
      </p>
    </Dialog>
  );
}