import { createCursorRole } from "@uncaged/nerve-workflow-utils";
import { readFileSync } from "node:fs";
import { join } from "node:path";
import { z } from "zod";
import { resolveDashScopeProvider, buildSenseExamples, getNerveYaml, NERVE_ROOT } from "../shared.js";
import type { SenseMeta } from "../types.js";

const senseExamples = buildSenseExamples();
const nerveYaml = getNerveYaml();

export async function buildPlannerRole() {
  const provider = await resolveDashScopeProvider();
  if (provider === null) {
    throw new Error("Cannot create planner: set DASHSCOPE_API_KEY and DASHSCOPE_BASE_URL");
  }
  return createCursorRole<SenseMeta["planner"]>({
    cwd: NERVE_ROOT,
    mode: "ask",
    prompt: async (threadId) =>
      `You are planning a new Nerve sense.

Read the workflow thread for the user's request: \`nerve thread ${threadId}\`

Pick a good kebab-case name for this sense. Produce a PLAN (not code) in markdown:

## Sense Design
### Name — kebab-case
### Fields — name, type (integer/real/text), description
### Compute Logic — step-by-step, specific Node.js APIs or shell commands
### Trigger Config — group, interval, throttle, timeout

Reference senses:
${senseExamples}

Current nerve.yaml:
\`\`\`yaml
${nerveYaml}
\`\`\`

Output ONLY the plan. Be precise and implementation-ready.`,
    extract: {
      provider,
      schema: z.object({
        senseName: z.string().describe("kebab-case sense name from the plan"),
      }),
    },
  });
}