import { DEFAULT_SERVER_SETTINGS } from "@t3tools/contracts";import { describe, expect, it } from "vitest";import {  applyServerSettingsPatch,  extractPersistedServerObservabilitySettings,  normalizePersistedServerSettingString,  parsePersistedServerObservabilitySettings,} from "./serverSettings.ts"; describe("serverSettings helpers", () => {  it("normalizes optional persisted strings", () => {    expect(normalizePersistedServerSettingString(undefined)).toBeUndefined();    expect(normalizePersistedServerSettingString("   ")).toBeUndefined();    expect(normalizePersistedServerSettingString("  http://localhost:4318/v1/traces  ")).toBe(      "http://localhost:4318/v1/traces",    );  });   it("extracts persisted observability settings", () => {    expect(      extractPersistedServerObservabilitySettings({        observability: {          otlpTracesUrl: "  http://localhost:4318/v1/traces  ",          otlpMetricsUrl: "  http://localhost:4318/v1/metrics  ",        },      }),    ).toEqual({      otlpTracesUrl: "http://localhost:4318/v1/traces",      otlpMetricsUrl: "http://localhost:4318/v1/metrics",    });  });   it("parses lenient persisted settings JSON", () => {    expect(      parsePersistedServerObservabilitySettings(        JSON.stringify({          observability: {            otlpTracesUrl: "http://localhost:4318/v1/traces",            otlpMetricsUrl: "http://localhost:4318/v1/metrics",          },        }),      ),    ).toEqual({      otlpTracesUrl: "http://localhost:4318/v1/traces",      otlpMetricsUrl: "http://localhost:4318/v1/metrics",    });  });   it("falls back cleanly when persisted settings are invalid", () => {    expect(parsePersistedServerObservabilitySettings("{")).toEqual({      otlpTracesUrl: undefined,      otlpMetricsUrl: undefined,    });  });   it("replaces text generation selection when provider/model are provided", () => {    const current = {      ...DEFAULT_SERVER_SETTINGS,      textGenerationModelSelection: {        provider: "codex" as const,        model: "gpt-5.4-mini",        options: {          reasoningEffort: "high" as const,          fastMode: true,        },      },    };     expect(      applyServerSettingsPatch(current, {        textGenerationModelSelection: {          provider: "codex",          model: "gpt-5.4-mini",        },      }).textGenerationModelSelection,    ).toEqual({      provider: "codex",      model: "gpt-5.4-mini",    });  });   it("still deep merges text generation selection when only options are provided", () => {    const current = {      ...DEFAULT_SERVER_SETTINGS,      textGenerationModelSelection: {        provider: "codex" as const,        model: "gpt-5.4-mini",        options: {          reasoningEffort: "high" as const,          fastMode: true,        },      },    };     expect(      applyServerSettingsPatch(current, {        textGenerationModelSelection: {          options: {            fastMode: false,          },        },      }).textGenerationModelSelection,    ).toEqual({      provider: "codex",      model: "gpt-5.4-mini",      options: {        reasoningEffort: "high",        fastMode: false,      },    });  });});