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

export default tool({
  description: "在前端对话界面中渲染图表。",
  args: {
    reason: tool.schema
      .string()
      .describe("Why this chart should be rendered for the user request."),
    title: tool.schema.string().optional().describe("Chart title."),
    chart_type: tool.schema
      .enum(["line", "bar", "pie"])
      .optional()
      .describe("Chart type."),
    x_data: tool.schema.array(tool.schema.string()).describe("X-axis labels."),
    series: tool.schema
      .array(
        tool.schema.object({
          name: tool.schema.string(),
          data: tool.schema.array(tool.schema.number()),
          type: tool.schema.enum(["line", "bar"]).optional(),
        }),
      )
      .describe("Series data."),
    x_axis_name: tool.schema.string().optional().describe("X-axis display name."),
    y_axis_name: tool.schema.string().optional().describe("Y-axis display name."),
  },
  async execute() {
    // 图表数据已经在工具参数里，前端收到 tool_call 后直接渲染，不再二次请求后端。
    return "图表将在对话中显示。";
  },
});