import { describe, expect, it } from "vitest";
import { composeOpenApiDocument } from "../src/openapi";

describe("openapi aggregation", () => {
  it("prefixes service paths and rewrites component refs", () => {
    const document = composeOpenApiDocument([
      {
        name: "auth",
        mountPath: "/api/auth",
        document: {
          openapi: "3.1.0",
          info: { title: "auth", version: "1.0.0" },
          paths: {
            "/api/auth/open-api/generate-schema": {
              get: {
                responses: {
                  "200": {
                    description: "ok",
                    content: {
                      "application/json": {
                        schema: { $ref: "#/components/schemas/AuthSchema" },
                      },
                    },
                  },
                },
              },
            },
          },
          components: {
            schemas: {
              AuthSchema: {
                type: "object",
                properties: {
                  message: { type: "string" },
                },
              },
            },
          },
        },
      },
      {
        name: "ops",
        mountPath: "/api/ops",
        document: {
          openapi: "3.1.0",
          info: { title: "ops", version: "1.0.0" },
          paths: {
            "/observations": {
              get: {
                responses: {
                  "200": {
                    description: "ok",
                    content: {
                      "application/json": {
                        schema: { $ref: "#/components/schemas/ObservationList" },
                      },
                    },
                  },
                },
              },
            },
          },
          components: {
            schemas: {
              ObservationList: {
                type: "object",
                properties: {
                  items: {
                    type: "array",
                    items: { $ref: "#/components/schemas/Observation" },
                  },
                },
              },
              Observation: {
                type: "object",
                properties: {
                  id: { type: "string" },
                },
              },
            },
          },
        },
      },
    ]);

    expect(document.openapi).toBe("3.1.0");
    expect(document.info.title).toBe("cfw-gateway API");
    expect(document.paths["/api/auth/open-api/generate-schema"]).toBeTruthy();
    expect(document.paths["/api/ops/observations"]).toBeTruthy();

    expect(document.components?.schemas?.["auth_AuthSchema"]).toBeTruthy();
    expect(document.components?.schemas?.["ops_ObservationList"]).toBeTruthy();
    expect(document.components?.schemas?.["ops_Observation"]).toBeTruthy();

    expect(
      (document.paths["/api/auth/open-api/generate-schema"] as any).get.responses["200"].content[
        "application/json"
      ].schema.$ref,
    ).toBe("#/components/schemas/auth_AuthSchema");
    expect(
      (document.paths["/api/ops/observations"] as any).get.responses["200"].content[
        "application/json"
      ].schema.$ref,
    ).toBe("#/components/schemas/ops_ObservationList");
    expect(
      (document.components?.schemas?.["ops_ObservationList"] as any).properties.items.items.$ref,
    ).toBe("#/components/schemas/ops_Observation");
  });
});