import { mkdtempSync } from "node:fs";
import { tmpdir } from "node:os";
import { join } from "node:path";
import { describe, expect, it } from "vitest";
import { captureEnv } from "../test-utils/env.js";
import { resolveImplicitProvidersForTest } from "./models-config.e2e-harness.js";
import { buildKimiCodingProvider } from "./models-config.providers.js";

describe("kimi-coding implicit provider (#22409)", () => {
  it("should include kimi-coding when KIMI_API_KEY is configured", async () => {
    const agentDir = mkdtempSync(join(tmpdir(), "openclaw-test-"));
    const envSnapshot = captureEnv(["KIMI_API_KEY"]);
    process.env.KIMI_API_KEY = "test-key"; // pragma: allowlist secret

    try {
      const providers = await resolveImplicitProvidersForTest({ agentDir });
      expect(providers?.["kimi-coding"]).toBeDefined();
      expect(providers?.["kimi-coding"]?.api).toBe("anthropic-messages");
      expect(providers?.["kimi-coding"]?.baseUrl).toBe("https://api.kimi.com/coding/");
    } finally {
      envSnapshot.restore();
    }
  });

  it("should build kimi-coding provider with anthropic-messages API", () => {
    const provider = buildKimiCodingProvider();
    expect(provider.api).toBe("anthropic-messages");
    expect(provider.baseUrl).toBe("https://api.kimi.com/coding/");
    expect(provider.headers).toEqual({ "User-Agent": "claude-code/0.1.0" });
    expect(provider.models).toBeDefined();
    expect(provider.models.length).toBeGreaterThan(0);
    expect(provider.models[0].id).toBe("k2p5");
  });

  it("should not include kimi-coding when no API key is configured", async () => {
    const agentDir = mkdtempSync(join(tmpdir(), "openclaw-test-"));
    const envSnapshot = captureEnv(["KIMI_API_KEY"]);
    delete process.env.KIMI_API_KEY;

    try {
      const providers = await resolveImplicitProvidersForTest({ agentDir });
      expect(providers?.["kimi-coding"]).toBeUndefined();
    } finally {
      envSnapshot.restore();
    }
  });

  it("uses explicit kimi-coding baseUrl when provided", async () => {
    const agentDir = mkdtempSync(join(tmpdir(), "openclaw-test-"));
    const envSnapshot = captureEnv(["KIMI_API_KEY"]);
    process.env.KIMI_API_KEY = "test-key";

    try {
      const providers = await resolveImplicitProvidersForTest({
        agentDir,
        explicitProviders: {
          "kimi-coding": {
            baseUrl: "https://kimi.example.test/coding/",
            api: "anthropic-messages",
            models: buildKimiCodingProvider().models,
          },
        },
      });
      expect(providers?.["kimi-coding"]?.baseUrl).toBe("https://kimi.example.test/coding/");
    } finally {
      envSnapshot.restore();
    }
  });

  it("merges explicit kimi-coding headers on top of the built-in user agent", async () => {
    const agentDir = mkdtempSync(join(tmpdir(), "openclaw-test-"));
    const envSnapshot = captureEnv(["KIMI_API_KEY"]);
    process.env.KIMI_API_KEY = "test-key";

    try {
      const providers = await resolveImplicitProvidersForTest({
        agentDir,
        explicitProviders: {
          "kimi-coding": {
            baseUrl: "https://api.kimi.com/coding/",
            api: "anthropic-messages",
            headers: {
              "User-Agent": "custom-kimi-client/1.0",
              "X-Kimi-Tenant": "tenant-a",
            },
            models: buildKimiCodingProvider().models,
          },
        },
      });
      expect(providers?.["kimi-coding"]?.headers).toEqual({
        "User-Agent": "custom-kimi-client/1.0",
        "X-Kimi-Tenant": "tenant-a",
      });
    } finally {
      envSnapshot.restore();
    }
  });
});
