/**
 * Freerouting autoroute tools for KiCAD MCP server
 *
 * Provides autorouting via Freerouting (Specctra DSN/SES workflow).
 */

import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
import { z } from "zod";

export function registerFreeroutingTools(server: McpServer, callKicadScript: Function) {
  // Full autoroute: export DSN -> run Freerouting -> import SES
  server.tool(
    "autoroute",
    "Run Freerouting autorouter on the current PCB. Exports to Specctra DSN, runs Freerouting CLI, and imports the routed SES result. Requires Java 11+ and freerouting.jar (see check_freerouting).",
    {
      boardPath: z.string().optional().describe("Path to .kicad_pcb file (default: current board)"),
      freeroutingJar: z
        .string()
        .optional()
        .describe(
          "Path to freerouting.jar (default: ~/.kicad-mcp/freerouting.jar or FREEROUTING_JAR env)",
        ),
      maxPasses: z.number().optional().describe("Maximum routing passes (default: 20)"),
      timeout: z.number().optional().describe("Timeout in seconds (default: 300)"),
    },
    async (args: any) => {
      const result = await callKicadScript("autoroute", args);
      return {
        content: [
          {
            type: "text",
            text: JSON.stringify(result, null, 2),
          },
        ],
      };
    },
  );

  // Export DSN only
  server.tool(
    "export_dsn",
    "Export the current PCB to Specctra DSN format. Useful for manual Freerouting workflow or external autorouters.",
    {
      boardPath: z.string().optional().describe("Path to .kicad_pcb file (default: current board)"),
      outputPath: z
        .string()
        .optional()
        .describe("Output DSN file path (default: same dir as board)"),
    },
    async (args: any) => {
      const result = await callKicadScript("export_dsn", args);
      return {
        content: [
          {
            type: "text",
            text: JSON.stringify(result, null, 2),
          },
        ],
      };
    },
  );

  // Import SES
  server.tool(
    "import_ses",
    "Import a Specctra SES (session) file into the current PCB. Use after running Freerouting externally.",
    {
      sesPath: z.string().describe("Path to the .ses file to import"),
      boardPath: z.string().optional().describe("Path to .kicad_pcb file (default: current board)"),
    },
    async (args: any) => {
      const result = await callKicadScript("import_ses", args);
      return {
        content: [
          {
            type: "text",
            text: JSON.stringify(result, null, 2),
          },
        ],
      };
    },
  );

  // Check Freerouting dependencies
  server.tool(
    "check_freerouting",
    "Check if Java and Freerouting JAR are available on the system. Run this before autoroute to verify prerequisites.",
    {
      freeroutingJar: z.string().optional().describe("Path to freerouting.jar to check"),
    },
    async (args: any) => {
      const result = await callKicadScript("check_freerouting", args);
      return {
        content: [
          {
            type: "text",
            text: JSON.stringify(result, null, 2),
          },
        ],
      };
    },
  );
}