import {  DEFAULT_SERVER_SETTINGS,  ProviderDriverKind,  ProviderInstanceId,  UsageLimitSourceId,  type ServerProvider,} from "@t3tools/contracts";import * as Duration from "effect/Duration";import { describe, expect, it } from "vite-plus/test";import { resolveServerBackgroundActivitySettings } from "./backgroundActivitySettings.ts";import { createModelSelection } from "./model.ts";import {  applyServerSettingsPatch,  extractPersistedServerObservabilitySettings,  isModelSelectionProviderEnabled,  normalizePersistedServerSettingString,  parsePersistedServerObservabilitySettings,  resolveSourceControlWriterModelSelection,} 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: createModelSelection(        ProviderInstanceId.make("codex"),        "gpt-5.4-mini",        [          { id: "reasoningEffort", value: "high" },          { id: "fastMode", value: true },        ],      ),    };     expect(      applyServerSettingsPatch(current, {        textGenerationModelSelection: {          instanceId: ProviderInstanceId.make("codex"),          model: "gpt-5.4-mini",        },      }).textGenerationModelSelection,    ).toEqual({      instanceId: "codex",      model: "gpt-5.4-mini",    });  });   it("still deep merges text generation selection when only options are provided", () => {    const current = {      ...DEFAULT_SERVER_SETTINGS,      textGenerationModelSelection: createModelSelection(        ProviderInstanceId.make("codex"),        "gpt-5.4-mini",        [          { id: "reasoningEffort", value: "high" },          { id: "fastMode", value: true },        ],      ),    };     expect(      applyServerSettingsPatch(current, {        textGenerationModelSelection: {          options: [{ id: "fastMode", value: false }],        },      }).textGenerationModelSelection,    ).toEqual({      instanceId: "codex",      model: "gpt-5.4-mini",      options: [        { id: "reasoningEffort", value: "high" },        { id: "fastMode", value: false },      ],    });  });   it("replaces text generation selection across providers without leaking stale options", () => {    const current = {      ...DEFAULT_SERVER_SETTINGS,      textGenerationModelSelection: createModelSelection(        ProviderInstanceId.make("codex"),        "gpt-5.4-mini",        [          { id: "reasoningEffort", value: "high" },          { id: "fastMode", value: true },        ],      ),    };     expect(      applyServerSettingsPatch(current, {        textGenerationModelSelection: {          instanceId: ProviderInstanceId.make("opencode"),          model: "openai/gpt-5",        },      }).textGenerationModelSelection,    ).toEqual({      instanceId: "opencode",      model: "openai/gpt-5",    });  });   it("accepts array-based text generation selection patches", () => {    expect(      applyServerSettingsPatch(DEFAULT_SERVER_SETTINGS, {        textGenerationModelSelection: {          instanceId: ProviderInstanceId.make("opencode"),          model: "openai/gpt-5",          options: [            { id: "variant", value: "prod" },            { id: "agent", value: "build" },          ],        },      }).textGenerationModelSelection,    ).toEqual({      instanceId: "opencode",      model: "openai/gpt-5",      options: [        { id: "variant", value: "prod" },        { id: "agent", value: "build" },      ],    });  });   it("replaces source control writer selection without retaining stale options", () => {    const current = {      ...DEFAULT_SERVER_SETTINGS,      sourceControlWriterModelSelection: createModelSelection(        ProviderInstanceId.make("codex"),        "gpt-5.4-mini",        [{ id: "reasoningEffort", value: "high" }],      ),    };     expect(      applyServerSettingsPatch(current, {        sourceControlWriterModelSelection: {          instanceId: ProviderInstanceId.make("opencode"),          model: "openai/gpt-5",        },      }).sourceControlWriterModelSelection,    ).toEqual({      instanceId: "opencode",      model: "openai/gpt-5",    });  });   it("clears source control writer selection with null", () => {    const current = {      ...DEFAULT_SERVER_SETTINGS,      sourceControlWriterModelSelection: createModelSelection(        ProviderInstanceId.make("codex"),        "gpt-5.4-mini",      ),    };     expect(      applyServerSettingsPatch(current, {        sourceControlWriterModelSelection: null,      }).sourceControlWriterModelSelection,    ).toBeNull();  });   it("falls back from a disabled source control writer provider without clearing its selection", () => {    const instanceId = ProviderInstanceId.make("codex_writer");    const sourceControlWriterModelSelection = createModelSelection(instanceId, "gpt-5.4-mini");    const settings = {      ...DEFAULT_SERVER_SETTINGS,      providerInstances: {        [instanceId]: {          driver: ProviderDriverKind.make("codex"),          enabled: false,          config: {},        },      },      sourceControlWriterModelSelection,    };     expect(isModelSelectionProviderEnabled(settings, sourceControlWriterModelSelection)).toBe(      false,    );    expect(resolveSourceControlWriterModelSelection(settings)).toBe(      settings.textGenerationModelSelection,    );    expect(settings.sourceControlWriterModelSelection).toBe(sourceControlWriterModelSelection);  });   it("falls back from an unavailable source control writer provider", () => {    const instanceId = ProviderInstanceId.make("missing_writer");    const sourceControlWriterModelSelection = createModelSelection(instanceId, "missing-model");    const settings = {      ...DEFAULT_SERVER_SETTINGS,      providerInstances: {        [instanceId]: {          driver: ProviderDriverKind.make("missing-driver"),          config: {},        },      },      sourceControlWriterModelSelection,    };    const unavailableProvider = {      instanceId,      driver: ProviderDriverKind.make("missing-driver"),      enabled: false,      installed: false,      version: null,      status: "disabled",      auth: { status: "unknown" },      checkedAt: "2026-07-27T00:00:00.000Z",      availability: "unavailable",      unavailableReason: "This provider driver is not available in this build.",      models: [],      slashCommands: [],      skills: [],    } satisfies ServerProvider;     expect(resolveSourceControlWriterModelSelection(settings, [unavailableProvider])).toBe(      settings.textGenerationModelSelection,    );    expect(settings.sourceControlWriterModelSelection).toBe(sourceControlWriterModelSelection);  });   it("replaces providerInstances maps so omitted instance fields are cleared", () => {    const codexId = ProviderInstanceId.make("codex");    const current = {      ...DEFAULT_SERVER_SETTINGS,      providerInstances: {        [codexId]: {          driver: ProviderDriverKind.make("codex"),          displayName: "Codex Work",          accentColor: "#7c3aed",          enabled: true,          config: { homePath: "~/.codex" },        },      },    };     expect(      applyServerSettingsPatch(current, {        providerInstances: {          [codexId]: {            driver: ProviderDriverKind.make("codex"),            displayName: "Codex Work",            enabled: true,            config: { homePath: "~/.codex" },          },        },      }).providerInstances[codexId],    ).toEqual({      driver: ProviderDriverKind.make("codex"),      displayName: "Codex Work",      enabled: true,      config: { homePath: "~/.codex" },    });  });   it("upserts and removes usageLimitSources per entry so concurrent edits cannot clobber", () => {    const hubA = UsageLimitSourceId.make("cliproxy-a");    const hubB = UsageLimitSourceId.make("cliproxy-b");    const source = (url: string) => ({      kind: "cliproxy" as const,      url,      managementKey: "secret",      enabled: true,    });    const current = {      ...DEFAULT_SERVER_SETTINGS,      usageLimitSources: { [hubA]: source("http://a:8318") },    };     const added = applyServerSettingsPatch(current, {      usageLimitSources: { [hubB]: source("http://b:8318") },    });    expect(Object.keys(added.usageLimitSources)).toEqual([hubA, hubB]);     const removed = applyServerSettingsPatch(added, { usageLimitSources: { [hubA]: null } });    expect(Object.keys(removed.usageLimitSources)).toEqual([hubB]);  });   it("replaces and removes individual usage prices without clobbering other models", () => {    const prices = { inputCostPerMillionTokens: 2, outputCostPerMillionTokens: 8 };    const current = applyServerSettingsPatch(DEFAULT_SERVER_SETTINGS, {      usagePriceOverrides: { "example-model": { ...prices, cacheReadCostPerMillionTokens: 0.5 } },    });    const added = applyServerSettingsPatch(current, {      usagePriceOverrides: { "other-model": prices },    });    const replaced = applyServerSettingsPatch(added, {      usagePriceOverrides: { "example-model": prices },    });    expect(replaced.usagePriceOverrides).toEqual({      "example-model": prices,      "other-model": prices,    });    const removed = applyServerSettingsPatch(replaced, {      usagePriceOverrides: { "example-model": null },    });    expect(removed.usagePriceOverrides).toEqual({ "other-model": prices });    expect(current.usagePriceOverrides["example-model"]?.cacheReadCostPerMillionTokens).toBe(0.5);  });   it("stores background activity profiles as a versioned object and syncs legacy aliases", () => {    const next = applyServerSettingsPatch(DEFAULT_SERVER_SETTINGS, {      backgroundActivity: {        schemaVersion: 1,        profile: "battery-saver",        overrides: {},      },    });     expect(next.backgroundActivity).toEqual({      schemaVersion: 1,      profile: "battery-saver",      overrides: {},    });    expect(next.backgroundActivityProfile).toBe("battery-saver");    expect(Duration.toMillis(next.automaticGitFetchInterval)).toBe(0);    expect(Duration.toMillis(next.providerHealthRefreshInterval)).toBe(      Duration.toMillis(Duration.minutes(15)),    );  });   it("turns legacy interval patches into custom background activity overrides", () => {    const next = applyServerSettingsPatch(DEFAULT_SERVER_SETTINGS, {      automaticGitFetchInterval: Duration.seconds(15),    });     expect(next.backgroundActivity).toEqual({      schemaVersion: 1,      profile: "custom",      baseProfile: "balanced",      overrides: {        automaticGitFetchInterval: Duration.seconds(15),      },    });    expect(resolveServerBackgroundActivitySettings(next).profile).toBe("balanced");    expect(      Duration.toMillis(resolveServerBackgroundActivitySettings(next).automaticGitFetchInterval),    ).toBe(15_000);  });   it("preserves legacy background activity settings when applying an unrelated patch", () => {    const current = {      ...DEFAULT_SERVER_SETTINGS,      backgroundActivityProfile: "performance" as const,      automaticGitFetchInterval: Duration.seconds(7),      providerHealthRefreshInterval: Duration.minutes(4),    };     const next = applyServerSettingsPatch(current, {      sourceControlWriterModelSelection: createModelSelection(        ProviderInstanceId.make("codex"),        "gpt-5.4-mini",      ),    });     expect(next.backgroundActivity).toEqual({      schemaVersion: 1,      profile: "custom",      baseProfile: "performance",      overrides: {        automaticGitFetchInterval: Duration.seconds(7),        providerHealthRefreshInterval: Duration.minutes(4),      },    });    expect(next.backgroundActivityProfile).toBe("performance");    expect(Duration.toMillis(next.automaticGitFetchInterval)).toBe(7_000);    expect(Duration.toMillis(next.providerHealthRefreshInterval)).toBe(240_000);  });   it("does not reactivate dormant overrides from a concrete profile", () => {    const current = {      ...DEFAULT_SERVER_SETTINGS,      backgroundActivity: {        schemaVersion: 1 as const,        profile: "battery-saver" as const,        overrides: {          providerHealthRefreshInterval: Duration.seconds(5),        },      },    };     const next = applyServerSettingsPatch(current, {      automaticGitFetchInterval: Duration.seconds(15),    });     expect(next.backgroundActivity).toEqual({      schemaVersion: 1,      profile: "custom",      baseProfile: "battery-saver",      overrides: {        automaticGitFetchInterval: Duration.seconds(15),      },    });  });   it("prefers structured background activity settings over legacy aliases", () => {    const next = applyServerSettingsPatch(DEFAULT_SERVER_SETTINGS, {      backgroundActivity: {        schemaVersion: 1,        profile: "battery-saver",        overrides: {},      },      automaticGitFetchInterval: Duration.seconds(5),      backgroundActivityProfile: "performance",    });     expect(next.backgroundActivity).toEqual({      schemaVersion: 1,      profile: "battery-saver",      overrides: {},    });    expect(next.backgroundActivityProfile).toBe("battery-saver");    expect(Duration.toMillis(next.automaticGitFetchInterval)).toBe(0);  });   it("reconciles custom background activity back to a preset when overrides match the preset", () => {    const custom = applyServerSettingsPatch(DEFAULT_SERVER_SETTINGS, {      automaticGitFetchInterval: Duration.seconds(15),    });    const next = applyServerSettingsPatch(custom, {      automaticGitFetchInterval: Duration.seconds(30),    });     expect(next.backgroundActivity).toEqual({      schemaVersion: 1,      profile: "balanced",      overrides: {},    });    expect(next.backgroundActivityProfile).toBe("balanced");    expect(Duration.toMillis(next.automaticGitFetchInterval)).toBe(30_000);  });   it("drops custom overrides that duplicate the base profile", () => {    const next = applyServerSettingsPatch(DEFAULT_SERVER_SETTINGS, {      backgroundActivity: {        schemaVersion: 1,        profile: "custom",        baseProfile: "balanced",        overrides: {          automaticGitFetchInterval: Duration.seconds(30),        },      },    });     expect(next.backgroundActivity).toEqual({      schemaVersion: 1,      profile: "balanced",      overrides: {},    });  });   it("replaces the complete background override record", () => {    const current = applyServerSettingsPatch(DEFAULT_SERVER_SETTINGS, {      backgroundActivity: {

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