import type { Meta, StoryObj } from "@storybook/react";
import { useState } from "react";
import DragFill from "./drag-fill";
import type { DragFillProps } from "./drag-fill.types";
import { cn } from "@/lib/utils";

const meta: Meta<typeof DragFill> = {
  title: "Components/Quiz/DragFill",
  component: DragFill,
  tags: ["autodocs"],
  argTypes: {
    options: {
      control: { type: "object" },
      description: "可拖拽的选项列表",
    },
    blanks: {
      control: { type: "object" },
      description: "空白区域列表",
    },
    value: {
      control: { type: "object" },
      description: "当前填充结果（受控模式）",
    },
    defaultValue: {
      control: { type: "object" },
      description: "默认填充结果",
    },
    disabled: {
      control: { type: "boolean" },
      description: "是否禁用整个组件",
    },
    allowDuplicate: {
      control: { type: "boolean" },
      description: "是否允许重复选择同一选项",
    },
    showSubmitButton: {
      control: { type: "boolean" },
      description: "是否显示提交按钮",
    },
    submitText: {
      control: { type: "text" },
      description: "提交按钮文本",
    },
  },
};

export default meta;
type Story = StoryObj<typeof DragFill>;

// 基础示例
export const Default: Story = {
  args: {
    options: ["选项A", "选项B", "选项C", "选项D"],
    blanks: ["空白1", "空白2", "空白3"],
    onSubmit: (results) => {
      console.log("填充结果:", results);
    },
  },
};

// 使用选项和空白对象
export const WithObjects: Story = {
  args: {
    options: [
      { value: "opt1", label: "选项一" },
      { value: "opt2", label: "选项二" },
      { value: "opt3", label: "选项三（禁用）", disabled: true },
      { value: "opt4", label: "选项四" },
    ],
    blanks: [
      { id: "blank1", label: "第一个空白", required: true },
      { id: "blank2", label: "第二个空白" },
      { id: "blank3", label: "第三个空白（必填）", required: true },
    ],
    onSubmit: (results) => {
      console.log("填充结果:", results);
    },
  },
};

// 受控模式
export const Controlled: Story = {
  render: () => {
    const [value, setValue] = useState<any[]>([]);
    return (
      <div className="space-y-4">
        <DragFill
          options={["选项A", "选项B", "选项C"]}
          blanks={["空白1", "空白2"]}
          value={value}
          onChange={setValue}
          onSubmit={(results) => {
            alert(`提交的结果: ${JSON.stringify(results)}`);
          }}
        />
        <div className="text-sm text-gray-600">
          当前填充: {JSON.stringify(value)}
        </div>
      </div>
    );
  },
};

// 允许重复选择
export const AllowDuplicate: Story = {
  args: {
    options: ["选项A", "选项B", "选项C"],
    blanks: ["空白1", "空白2", "空白3"],
    allowDuplicate: true,
    onSubmit: (results) => {
      console.log("填充结果:", results);
    },
  },
};

// 禁用状态
export const Disabled: Story = {
  args: {
    options: ["选项A", "选项B", "选项C"],
    blanks: ["空白1", "空白2"],
    disabled: true,
    defaultValue: [{ blankId: "blank1", optionValue: "选项A" }],
  },
};

// 不显示提交按钮
export const WithoutSubmitButton: Story = {
  args: {
    options: ["选项A", "选项B", "选项C"],
    blanks: ["空白1", "空白2"],
    showSubmitButton: false,
    onChange: (results) => {
      console.log("填充变化:", results);
    },
  },
};

// 自定义样式
export const CustomStyled: Story = {
  args: {
    options: ["选项A", "选项B", "选项C", "选项D"],
    blanks: ["空白1", "空白2"],
    className: "max-w-2xl mx-auto p-6 bg-gray-50 rounded-xl",
    optionClassName: "text-lg font-semibold",
    blankClassName: "min-h-[100px]",
    submitText: "确认答案",
    onSubmit: (results) => {
      console.log("填充结果:", results);
    },
  },
};

// 自定义渲染
export const CustomRender: Story = {
  render: () => {
    return (
      <DragFill
        options={["选项A", "选项B", "选项C"]}
        blanks={["空白1", "空白2"]}
        renderOption={(option, isUsed) => (
          <div
            className={cn(
              "p-4 rounded-lg border-2 transition-all cursor-move",
              isUsed
                ? "border-gray-200 bg-gray-100 opacity-50"
                : "border-blue-300 bg-blue-50 hover:border-blue-500"
            )}
            draggable={!isUsed}
          >
            <div className="flex items-center gap-2">
              <span className="text-2xl">📦</span>
              <span className="font-medium">{option.label}</span>
            </div>
          </div>
        )}
        renderBlank={(blank, filledValue) => (
          <div
            className={cn(
              "min-h-[100px] p-6 rounded-lg border-2 border-dashed flex items-center justify-center",
              filledValue
                ? "border-green-400 bg-green-50"
                : "border-purple-300 bg-purple-50"
            )}
          >
            {filledValue ? (
              <div className="text-green-700 font-bold text-lg">
                ✓ {filledValue}
              </div>
            ) : (
              <div className="text-purple-500 text-center">
                <div className="text-3xl mb-2">⬇️</div>
                <div>{blank.label || "拖拽到这里"}</div>
              </div>
            )}
          </div>
        )}
        onSubmit={(results) => {
          console.log("填充结果:", results);
        }}
      />
    );
  },
};