import { defineStore } from "pinia";

export type RegionType = "ai_generate" | "manual" | "fixed" | "table";

export type TemplateBlock = {
  block_id: string;
  block_type: "title" | "heading" | "paragraph" | "table";
  text_preview: string;
  level: number;
  sort_order: number;
  table_rows?: number;
  table_cols?: number;
};

export type TreeNode = {
  id: string;
  name: string;
  status: "done" | "review" | "disabled" | "empty";
  children?: TreeNode[];
};

export type BlockConfig = {
  region_name: string;
  region_type: RegionType;
  data_sources: string[];
  prompt: string;
  output_format: string;
  need_review: number;
  remark: string;
  enabled: number;
};

const mockPreviewHtml = `
  <h1 data-block-id="block_001" style="margin:0 0 28px;text-align:center;font-size:20px;">企业经营分析报告</h1>
  <p data-block-id="block_002" style="margin:8px 0;text-align:justify;text-indent:2em;">本报告用于展示 Word 模板解析后的 A4 预览效果，后续会由后端返回的 preview_html 驱动渲染。</p>
  <h2 data-block-id="block_003" style="margin:24px 0 12px;padding-bottom:6px;border-bottom:2px solid #1a1d24;font-size:16px;">一、经营概况</h2>
  <p data-block-id="block_004" style="margin:8px 0;text-align:justify;text-indent:2em;">点击预览区块后，左侧配置面板将展示对应区域的提示词、数据源和输出格式配置。</p>
  <table data-block-id="block_005" style="width:100%;margin:14px 0;border-collapse:collapse;">
    <thead><tr>
      <th style="padding:7px 10px;border:1px solid #e0e2e6;text-align:left;background:#f0f1f3;">指标</th>
      <th style="padding:7px 10px;border:1px solid #e0e2e6;text-align:left;background:#f0f1f3;">本期</th>
      <th style="padding:7px 10px;border:1px solid #e0e2e6;text-align:left;background:#f0f1f3;">同比</th>
    </tr></thead>
    <tbody>
      <tr><td style="padding:7px 10px;border:1px solid #e0e2e6;">营业收入</td><td style="padding:7px 10px;border:1px solid #e0e2e6;">-</td><td style="padding:7px 10px;border:1px solid #e0e2e6;">-</td></tr>
      <tr><td style="padding:7px 10px;border:1px solid #e0e2e6;">利润率</td><td style="padding:7px 10px;border:1px solid #e0e2e6;">-</td><td style="padding:7px 10px;border:1px solid #e0e2e6;">-</td></tr>
    </tbody>
  </table>
`;

export const useTemplateStore = defineStore("template", {
  state: () => ({
    loading: false,
    error: "",
    template: {
      id: 1,
      name: "企业经营分析报告模板",
      version: "v1.0.0",
    },
    previewHtml: mockPreviewHtml,
    blocks: [
      { block_id: "block_001", block_type: "title", text_preview: "企业经营分析报告", level: 0, sort_order: 1 },
      { block_id: "block_002", block_type: "paragraph", text_preview: "报告说明", level: 0, sort_order: 2 },
      { block_id: "block_003", block_type: "heading", text_preview: "一、经营概况", level: 1, sort_order: 3 },
      { block_id: "block_004", block_type: "paragraph", text_preview: "经营概况段落", level: 0, sort_order: 4 },
      { block_id: "block_005", block_type: "table", text_preview: "经营指标表", level: 0, sort_order: 5, table_rows: 3, table_cols: 3 },
    ] as TemplateBlock[],
    tree: [
      {
        id: "block_001",
        name: "企业经营分析报告",
        status: "done",
        children: [
          { id: "block_002", name: "报告说明", status: "review" },
          {
            id: "block_003",
            name: "一、经营概况",
            status: "done",
            children: [
              { id: "block_004", name: "经营概况段落", status: "empty" },
              { id: "block_005", name: "经营指标表", status: "disabled" },
            ],
          },
        ],
      },
    ] as TreeNode[],
    configs: {
      block_003: {
        region_name: "一、经营概况",
        region_type: "ai_generate",
        data_sources: ["business_data"],
        prompt: "请基于业务数据生成经营概况，突出核心指标变化和原因。",
        output_format: "formal_paragraph",
        need_review: 1,
        remark: "",
        enabled: 1,
      },
      block_005: {
        region_name: "经营指标表",
        region_type: "table",
        data_sources: ["business_data"],
        prompt: "",
        output_format: "table_summary",
        need_review: 1,
        remark: "",
        enabled: 0,
      },
    } as Record<string, BlockConfig>,
  }),
  getters: {
    blockById: (state) => (blockId: string) => state.blocks.find((block) => block.block_id === blockId),
    configById: (state) => (blockId: string) => state.configs[blockId],
  },
  actions: {
    async loadTemplate() {
      this.loading = true;
      this.error = "";
      try {
        await new Promise((resolve) => window.setTimeout(resolve, 200));
      } catch {
        this.error = "模板加载失败";
      } finally {
        this.loading = false;
      }
    },
    async saveBlockConfig(blockId: string, config: BlockConfig) {
      await new Promise((resolve) => window.setTimeout(resolve, 400));
      this.configs[blockId] = { ...config };
    },
  },
});