// Migrate Hermes tests cover model.plan plugin behavior.
import path from "node:path";
import type { OpenClawConfig } from "openclaw/plugin-sdk/provider-auth";
import { afterEach, describe, expect, it } from "vitest";
import { HERMES_REASON_DEFAULT_MODEL_CONFIGURED } from "./items.js";
import { buildHermesMigrationProvider } from "./provider.js";
import { cleanupTempRoots, makeContext, makeTempRoot, writeFile } from "./test/provider-helpers.js";

function expectedHermesModelPlanItems(params: {
  modelStatus: "planned" | "conflict";
  modelReason?: string;
}) {
  return [
    {
      id: "config:default-model",
      kind: "config",
      action: "update",
      target: "agents.defaults.model",
      status: params.modelStatus,
      ...(params.modelReason ? { reason: params.modelReason } : {}),
      details: {
        model: "openai/gpt-5.4",
      },
    },
    {
      id: "config:model-providers",
      kind: "config",
      action: "merge",
      target: "models.providers",
      status: "planned",
      message: "Import Hermes provider and custom endpoint config.",
      details: {
        path: ["models", "providers"],
        value: {
          openai: {
            baseUrl: "",
            apiKey: {
              source: "env",
              provider: "default",
              id: "OPENAI_API_KEY",
            },
            api: "openai-completions",
            models: [
              {
                id: "gpt-5.4",
                name: "gpt-5.4",
                api: "openai-responses",
                reasoning: false,
                input: ["text"],
                cost: {
                  input: 0,
                  output: 0,
                  cacheRead: 0,
                  cacheWrite: 0,
                },
                contextWindow: 128_000,
                maxTokens: 8192,
                metadataSource: "models-add",
              },
            ],
          },
        },
      },
    },
  ];
}

describe("Hermes migration model planning", () => {
  afterEach(async () => {
    await cleanupTempRoots();
  });

  it("preserves the provider for top-level string model refs", async () => {
    const root = await makeTempRoot();
    const source = path.join(root, "hermes");
    const workspaceDir = path.join(root, "workspace");
    const stateDir = path.join(root, "state");
    await writeFile(path.join(source, "config.yaml"), "provider: openai\nmodel: gpt-5.4\n");

    const provider = buildHermesMigrationProvider();
    const plan = await provider.plan(makeContext({ source, stateDir, workspaceDir }));

    expect(plan.items).toEqual(expectedHermesModelPlanItems({ modelStatus: "planned" }));
  });

  it("treats existing object-form default model primaries as conflicts", async () => {
    const root = await makeTempRoot();
    const source = path.join(root, "hermes");
    const workspaceDir = path.join(root, "workspace");
    const stateDir = path.join(root, "state");
    await writeFile(
      path.join(source, "config.yaml"),
      "model:\n  provider: openai\n  model: gpt-5.4\n",
    );

    const provider = buildHermesMigrationProvider();
    const plan = await provider.plan(
      makeContext({
        source,
        stateDir,
        workspaceDir,
        model: {
          primary: "anthropic/claude-sonnet-4.6",
          fallbacks: ["openai/gpt-5.4"],
        },
      }),
    );

    expect(plan.items).toEqual(
      expectedHermesModelPlanItems({
        modelStatus: "conflict",
        modelReason: HERMES_REASON_DEFAULT_MODEL_CONFIGURED,
      }),
    );
  });

  it("treats default-agent model overrides as conflicts", async () => {
    const root = await makeTempRoot();
    const source = path.join(root, "hermes");
    const workspaceDir = path.join(root, "workspace");
    const stateDir = path.join(root, "state");
    await writeFile(
      path.join(source, "config.yaml"),
      "model:\n  provider: openai\n  model: gpt-5.4\n",
    );
    const config = {
      agents: {
        defaults: {
          workspace: workspaceDir,
          model: "openai/gpt-5.4",
        },
        list: [
          {
            id: "main",
            default: true,
            model: "anthropic/claude-sonnet-4.6",
          },
        ],
      },
    } as OpenClawConfig;

    const provider = buildHermesMigrationProvider();
    const plan = await provider.plan(makeContext({ source, stateDir, workspaceDir, config }));

    expect(plan.items).toEqual(
      expectedHermesModelPlanItems({
        modelStatus: "conflict",
        modelReason: HERMES_REASON_DEFAULT_MODEL_CONFIGURED,
      }),
    );
  });
});