import { Schema } from "effect";import { describe, expect, it } from "vite-plus/test"; import {  DiscoveredLocalServer,  PreviewEvent,  PreviewNavStatus,  PreviewSessionSnapshot,  PreviewViewportSetting,} from "./preview.ts";import {  PreviewAutomationHost,  PreviewAutomationError,  PreviewAutomationOpenInput,  PreviewAutomationResizeInput,  PreviewAutomationResizeResult,  PreviewAutomationStatus,} from "./previewAutomation.ts"; const decodePreviewEvent = Schema.decodeUnknownSync(PreviewEvent);const decodeSnapshot = Schema.decodeUnknownSync(PreviewSessionSnapshot);const decodeNavStatus = Schema.decodeUnknownSync(PreviewNavStatus);const decodeServer = Schema.decodeUnknownSync(DiscoveredLocalServer);const decodeViewport = Schema.decodeUnknownSync(PreviewViewportSetting);const decodeResizeInput = Schema.decodeUnknownSync(PreviewAutomationResizeInput);const decodeOpenInput = Schema.decodeUnknownSync(PreviewAutomationOpenInput);const decodeResizeResult = Schema.decodeUnknownSync(PreviewAutomationResizeResult);const decodeAutomationHost = Schema.decodeUnknownSync(PreviewAutomationHost);const decodeAutomationError = Schema.decodeUnknownSync(PreviewAutomationError);const decodeAutomationStatus = Schema.decodeUnknownSync(PreviewAutomationStatus); describe("PreviewAutomationOpenInput", () => {  it("accepts the inline preview visibility flag", () => {    expect(decodeOpenInput({ open: false })).toEqual({ open: false });  });   it("retains the legacy show visibility alias", () => {    expect(decodeOpenInput({ show: false })).toEqual({ show: false });  });}); describe("PreviewNavStatus", () => {  it("decodes Idle", () => {    expect(decodeNavStatus({ _tag: "Idle" })).toEqual({ _tag: "Idle" });  });   it("decodes Loading with title", () => {    expect(decodeNavStatus({ _tag: "Loading", url: "http://localhost:5173/", title: "" })).toEqual({      _tag: "Loading",      url: "http://localhost:5173/",      title: "",    });  });   it("decodes LoadFailed with code/description", () => {    expect(      decodeNavStatus({        _tag: "LoadFailed",        url: "https://example.com/",        title: "Example",        code: -105,        description: "ERR_NAME_NOT_RESOLVED",      }),    ).toEqual({      _tag: "LoadFailed",      url: "https://example.com/",      title: "Example",      code: -105,      description: "ERR_NAME_NOT_RESOLVED",    });  });   it("rejects empty url", () => {    expect(() => decodeNavStatus({ _tag: "Loading", url: "", title: "" })).toThrow();  });}); describe("PreviewSessionSnapshot", () => {  it("round-trips a Success snapshot", () => {    const snapshot = decodeSnapshot({      threadId: "thread-1",      tabId: "preview-thread-1",      navStatus: {        _tag: "Success",        url: "http://localhost:5173/",        title: "Vite App",      },      canGoBack: false,      canGoForward: false,      updatedAt: "2026-01-01T00:00:00.000Z",    });    expect(snapshot.tabId).toBe("preview-thread-1");    expect(snapshot.navStatus._tag).toBe("Success");  });}); describe("PreviewViewportSetting", () => {  it("decodes fill, freeform, and preset modes", () => {    expect(decodeViewport({ _tag: "fill" })).toEqual({ _tag: "fill" });    expect(decodeViewport({ _tag: "freeform", width: 1024, height: 768 })).toEqual({      _tag: "freeform",      width: 1024,      height: 768,    });    expect(      decodeViewport({        _tag: "preset",        presetId: "iphone-15-pro",        width: 393,        height: 852,      }),    ).toMatchObject({ _tag: "preset", presetId: "iphone-15-pro" });  });   it("rejects unsafe dimensions and oversized render areas", () => {    expect(() => decodeViewport({ _tag: "freeform", width: 100, height: 800 })).toThrow();    expect(() => decodeViewport({ _tag: "freeform", width: 3840, height: 3840 })).toThrow();  });}); describe("PreviewAutomationResizeInput", () => {  it("requires fields that match the selected mode", () => {    expect(decodeResizeInput({ mode: "fill" })).toEqual({ mode: "fill" });    expect(      decodeResizeInput({ mode: "preset", preset: "pixel-7", orientation: "landscape" }),    ).toMatchObject({ mode: "preset", preset: "pixel-7" });    expect(() => decodeResizeInput({ mode: "preset", preset: "pixel-8" })).toThrow();    expect(() => decodeResizeInput({ mode: "freeform", width: 1024 })).toThrow();    expect(() => decodeResizeInput({ mode: "fill", width: 1024, height: 768 })).toThrow();  });   it("allows fill-mode measurements below the minimum selectable fixed size", () => {    expect(      decodeResizeResult({        tabId: "preview-t",        setting: { _tag: "fill" },        viewport: { width: 180, height: 120 },      }).viewport,    ).toEqual({ width: 180, height: 120 });  });}); describe("preview automation tab targeting", () => {  it("accepts an explicit tab and rejects contradictory open behavior", () => {    expect(decodeResizeInput({ tabId: "tab-app", mode: "fill" })).toMatchObject({      tabId: "tab-app",      mode: "fill",    });    expect(decodeOpenInput({ tabId: "tab-app", reuseExistingTab: true })).toMatchObject({      tabId: "tab-app",      reuseExistingTab: true,    });    expect(() => decodeOpenInput({ tabId: "tab-app", reuseExistingTab: false })).toThrow();  });}); describe("PreviewAutomationHost", () => {  it("accepts legacy hosts and current operation advertisements", () => {    expect(decodeAutomationHost({ clientId: "legacy", environmentId: "environment-1" })).toEqual({      clientId: "legacy",      environmentId: "environment-1",    });    expect(      decodeAutomationHost({        clientId: "current",        environmentId: "environment-1",        supportedOperations: ["status", "resize"],      }).supportedOperations,    ).toEqual(["status", "resize"]);  });}); describe("PreviewAutomationError", () => {  it("preserves a typed non-editable target failure", () => {    const error = decodeAutomationError({      _tag: "PreviewAutomationTargetNotEditableError",      operation: "type",      environmentId: "environment-1",      threadId: "thread-1",      providerSessionId: "provider-session-1",      providerInstanceId: "codex",      clientId: "client-1",      connectionId: "connection-1",      requestId: "request-1",      tabId: "tab-1",      timeoutMs: 1_000,      remoteTag: "PreviewAutomationTargetNotEditableError",      remoteMessageLength: 12,      cause: {},      selectorKind: "focused-element",    });     expect(error._tag).toBe("PreviewAutomationTargetNotEditableError");    if (error._tag === "PreviewAutomationTargetNotEditableError") {      expect(error.selectorKind).toBe("focused-element");      expect(error.message).toBe("Preview automation type requires an editable focused element.");    }  });}); describe("PreviewAutomationStatus", () => {  it("accepts old hosts without viewport data and exposes it from current hosts", () => {    const base = {      available: true,      visible: false,      tabId: "preview-t",      url: "https://example.com",      title: "Example",      loading: false,    };    expect(decodeAutomationStatus(base)).toEqual(base);    expect(      decodeAutomationStatus({        ...base,        viewportSetting: { _tag: "preset", presetId: "pixel-8", width: 412, height: 915 },        viewport: { width: 412, height: 915 },      }).viewport,    ).toEqual({ width: 412, height: 915 });  });}); describe("PreviewEvent", () => {  it("decodes opened", () => {    const event = decodePreviewEvent({      type: "opened",      threadId: "t",      tabId: "preview-t",      createdAt: "2026-01-01T00:00:00.000Z",      serverEpoch: "server-a",      revision: 1,      snapshot: {        threadId: "t",        tabId: "preview-t",        navStatus: { _tag: "Idle" },        canGoBack: false,        canGoForward: false,        updatedAt: "2026-01-01T00:00:00.000Z",      },    });    expect(event.type).toBe("opened");  });   it("decodes failed with code/description", () => {    const event = decodePreviewEvent({      type: "failed",      threadId: "t",      tabId: "preview-t",      createdAt: "2026-01-01T00:00:00.000Z",      serverEpoch: "server-a",      revision: 1,      url: "https://example.com/",      title: "",      code: -105,      description: "ERR_NAME_NOT_RESOLVED",    });    expect(event.type).toBe("failed");    if (event.type === "failed") {      expect(event.code).toBe(-105);    }  });   it("decodes resized with tab viewport state", () => {    const event = decodePreviewEvent({      type: "resized",      threadId: "t",      tabId: "preview-t",      createdAt: "2026-01-01T00:00:00.000Z",      serverEpoch: "server-a",      revision: 1,      snapshot: {        threadId: "t",        tabId: "preview-t",        navStatus: { _tag: "Idle" },        canGoBack: false,        canGoForward: false,        viewport: { _tag: "freeform", width: 1024, height: 768 },        updatedAt: "2026-01-01T00:00:00.000Z",      },    });    expect(event.type).toBe("resized");  });   it("decodes closed without snapshot", () => {    const event = decodePreviewEvent({      type: "closed",      threadId: "t",      tabId: "preview-t",      createdAt: "2026-01-01T00:00:00.000Z",      serverEpoch: "server-a",      revision: 1,    });    expect(event.type).toBe("closed");  });}); describe("DiscoveredLocalServer", () => {  it("decodes a server with process metadata", () => {    const server = decodeServer({      host: "localhost",      port: 5173,      url: "http://localhost:5173",      processName: "node",      pid: 12345,      terminal: null,    });    expect(server.port).toBe(5173);    expect(server.processName).toBe("node");  });   it("decodes a server without process metadata", () => {    const server = decodeServer({      host: "localhost",      port: 3000,      url: "http://localhost:3000",      processName: null,      pid: null,      terminal: null,    });    expect(server.processName).toBeNull();  });   it("rejects invalid ports", () => {    expect(() =>      decodeServer({        host: "localhost",        port: 0,        url: "http://localhost:0",        processName: null,        pid: null,        terminal: null,      }),    ).toThrow();    expect(() =>      decodeServer({        host: "localhost",        port: 70000,        url: "http://localhost:70000",        processName: null,        pid: null,        terminal: null,      }),    ).toThrow();  });});