import { tool } from "@opencode-ai/plugin";
import path from "path";

const SCRIPTS_DIR = (ctx: { worktree: string }) =>
  path.join(ctx.worktree, "scripts");

async function runPython(
  ctx: { worktree: string },
  script: string,
  fn: string,
  args: Record<string, unknown>,
): Promise<string> {
  const scriptPath = path.join(SCRIPTS_DIR(ctx), script);
  const argsJson = JSON.stringify(args);
  const result = await Bun.$`python3 ${scriptPath} ${fn} ${argsJson}`.text();
  return result.trim();
}

export const quote = tool({
  description: "Get daily/weekly K-line and real-time quotes for a stock",
  args: {
    symbol: tool.schema.string().describe("Stock code (e.g. 600519 for Kweichow Moutai)"),
    period: tool.schema.enum(["daily", "weekly", "monthly"]).default("daily").describe("K-line period"),
    start_date: tool.schema.string().optional().describe("Start date YYYYMMDD, defaults to 90 days ago"),
    end_date: tool.schema.string().optional().describe("End date YYYYMMDD, defaults to today"),
  },
  async execute(args, context) {
    return runPython(context, "market_data.py", "quote", args);
  },
});

export const financial = tool({
  description: "Get financial statement indicators for a stock",
  args: {
    symbol: tool.schema.string().describe("Stock code (e.g. 600519)"),
  },
  async execute(args, context) {
    return runPython(context, "market_data.py", "financial", args);
  },
});

export const moneyflow = tool({
  description: "Get capital flow data (main fund, northbound) for a stock",
  args: {
    symbol: tool.schema.string().describe("Stock code (e.g. 600519)"),
    days: tool.schema.number().default(10).describe("Number of recent days"),
  },
  async execute(args, context) {
    return runPython(context, "market_data.py", "moneyflow", args);
  },
});

export const news = tool({
  description: "Get recent news and announcements for a stock",
  args: {
    symbol: tool.schema.string().describe("Stock code (e.g. 600519)"),
    limit: tool.schema.number().default(20).describe("Max number of news items"),
  },
  async execute(args, context) {
    return runPython(context, "sentiment.py", "news", args);
  },
});

export const index = tool({
  description: "Get major A-share index data (Shanghai Composite, Shenzhen Component, ChiNext)",
  args: {
    index_code: tool.schema.enum(["sh", "sz", "cyb", "all"]).default("all").describe("Index to fetch"),
    days: tool.schema.number().default(30).describe("Number of recent trading days"),
  },
  async execute(args, context) {
    return runPython(context, "market_data.py", "index", args);
  },
});

export const sector = tool({
  description: "Get sector/industry performance and ranking",
  args: {
    date: tool.schema.string().optional().describe("Date YYYYMMDD, defaults to latest"),
  },
  async execute(args, context) {
    return runPython(context, "market_data.py", "sector", args);
  },
});