import { ProjectId, type PullRequestSummary, type VcsStatusResult } from "@t3tools/contracts";import { describe, expect, it } from "@effect/vitest";import * as Effect from "effect/Effect";import { AtomRegistry } from "effect/unstable/reactivity";import {  GitMergeIcon,  GitPullRequestClosedIcon,  GitPullRequestDraftIcon,  GitPullRequestIcon,} from "lucide-react"; import {  ChangeRequestStatusIcon,  nextThreadChangeRequestSnapshot,  prStatusIndicator,  resolveDisplayedThreadPr,  resolveDisplayedThreadPrProvider,  resolveThreadPr,  settledPrHoverColorClass,  threadChangeRequestSnapshotsEqual,  threadChangeRequestSnapshotsAtom,  type ThreadChangeRequestSnapshot,} from "./ThreadStatusIndicators";import { newestPullRequestSummary } from "../state/pullRequests"; describe("ChangeRequestStatusIcon", () => {  it.each([    ["open", "open", false, GitPullRequestIcon],    ["draft", "open", true, GitPullRequestDraftIcon],    ["closed", "closed", false, GitPullRequestClosedIcon],    ["merged", "merged", false, GitMergeIcon],  ] as const)("uses the %s pull request glyph", (_label, state, isDraft, expectedIcon) => {    expect(ChangeRequestStatusIcon({ state, isDraft }).type).toBe(expectedIcon);  });}); function status(overrides: Partial<VcsStatusResult> = {}): VcsStatusResult {  return {    isRepo: true,    hasPrimaryRemote: true,    isDefaultRef: false,    refName: "feature/current",    hasWorkingTreeChanges: false,    workingTree: { files: [], insertions: 0, deletions: 0 },    hasUpstream: true,    aheadCount: 0,    behindCount: 0,    pr: {      number: 42,      title: "PR branch",      url: "https://github.com/pingdotgg/t3code/pull/42",      baseRef: "main",      headRef: "feature/current",      state: "open",    },    ...overrides,  };} function mergedFeaturePr(): NonNullable<VcsStatusResult["pr"]> {  return {    number: 42,    title: "Feature PR",    url: "https://github.com/pingdotgg/t3code/pull/42",    baseRef: "main",    headRef: "feature/current",    state: "merged",  };} function snapshotFor(  branch: string,  pr: NonNullable<VcsStatusResult["pr"]>,  sourceControlProvider?: VcsStatusResult["sourceControlProvider"],): ThreadChangeRequestSnapshot {  return { branch, pr, sourceControlProvider };} function pullRequestSummary(  state: PullRequestSummary["state"],  updatedAt: string,): PullRequestSummary {  return {    provider: "github",    projectId: ProjectId.make("project-1"),    repository: "pingdotgg/t3code",    number: 42,    title: "Feature PR",    url: "https://github.com/pingdotgg/t3code/pull/42",    state,    headBranch: "feature/current",    baseBranch: "main",    updatedAt,  };} describe("shared pull request state", () => {  it("shows a panel-observed merge instead of an older sidebar summary", () => {    const open = pullRequestSummary("open", "2026-09-03T01:00:00.000Z");    const merged = pullRequestSummary("merged", "2026-09-03T01:01:00.000Z");     expect(newestPullRequestSummary(open, merged)).toBe(merged);  });   it("never lets a stale open response regress a merged observation", () => {    const merged = pullRequestSummary("merged", "2026-09-03T01:01:00.000Z");    const staleOpen = pullRequestSummary("open", "2026-09-03T01:00:00.000Z");     expect(newestPullRequestSummary(merged, staleOpen)).toBe(merged);  });   it("accepts a newer open state after a closed pull request is reopened", () => {    const closed = pullRequestSummary("closed", "2026-09-03T01:00:00.000Z");    const reopened = pullRequestSummary("open", "2026-09-03T01:01:00.000Z");     expect(newestPullRequestSummary(closed, reopened)).toBe(reopened);  });}); describe("resolveThreadPr", () => {  it("keeps local-checkout PR indicators scoped to the stored thread branch", () => {    expect(      resolveThreadPr({        threadBranch: "feature/other",        gitStatus: status(),      }),    ).toBeNull();  });   it("hides PR indicators when a dedicated worktree has switched away from the thread branch", () => {    expect(      resolveThreadPr({        threadBranch: "stack/base",        gitStatus: status(),      }),    ).toBeNull();  });   it("hides PR indicators when thread branch metadata is missing", () => {    expect(      resolveThreadPr({        threadBranch: null,        gitStatus: status(),      }),    ).toBeNull();  });   it("shows the PR when the live checkout matches the stored thread branch", () => {    const gitStatus = status();     expect(      resolveThreadPr({        threadBranch: "feature/current",        gitStatus,      }),    ).toBe(gitStatus.pr);  });}); describe("resolveDisplayedThreadPr + nextThreadChangeRequestSnapshot", () => {  const featureBranch = "feature/current";  const mergedPr = mergedFeaturePr();  const linkedPullRequest = {    projectId: ProjectId.make("project-1"),    repository: "pingdotgg/t3code",    number: 42,    url: "https://github.com/pingdotgg/t3code/pull/42",  };  const provider = {    kind: "github" as const,    name: "GitHub",    baseUrl: "https://github.com",  };   it("returns the live merged PR when the checkout matches the feature branch", () => {    const gitStatus = status({      refName: featureBranch,      pr: mergedPr,      sourceControlProvider: provider,    });     expect(      resolveDisplayedThreadPr({        threadBranch: featureBranch,        gitStatus,        snapshot: undefined,        retainTerminalOnBranchMismatch: true,      }),    ).toBe(mergedPr);    expect(      resolveDisplayedThreadPrProvider({        threadBranch: featureBranch,        gitStatus,        snapshot: undefined,        retainTerminalOnBranchMismatch: true,      }),    ).toEqual(provider);  });   it("shows a linked pull request when the checkout has a different branch", () => {    const linkedPullRequestStatus = {      pr: mergedPr,      sourceControlProvider: provider,    };     expect(      resolveDisplayedThreadPr({        threadBranch: "feature/other",        gitStatus: status({ refName: "feature/other", pr: null }),        snapshot: undefined,        retainTerminalOnBranchMismatch: false,        linkedPullRequest,        linkedPullRequestStatus,      }),    ).toEqual(mergedPr);    expect(      resolveDisplayedThreadPrProvider({        threadBranch: "feature/other",        gitStatus: status({ refName: "feature/other", pr: null }),        snapshot: undefined,        retainTerminalOnBranchMismatch: false,        linkedPullRequest,        linkedPullRequestStatus,      }),    ).toEqual(provider);    expect(      nextThreadChangeRequestSnapshot({        threadBranch: "feature/other",        gitStatus: status({ refName: "feature/other", pr: null }),        snapshot: undefined,        retainTerminalOnBranchMismatch: false,        linkedPullRequest,        linkedPullRequestStatus,      }),    ).toEqual({      branch: "feature/other",      pr: mergedPr,      sourceControlProvider: provider,      linkedPullRequest,    });  });   it("keeps a matching linked pull request snapshot while its status reloads", () => {    const snapshot = {      ...snapshotFor(featureBranch, mergedPr, provider),      linkedPullRequest,    };     expect(      resolveDisplayedThreadPr({        threadBranch: null,        gitStatus: null,        snapshot,        retainTerminalOnBranchMismatch: false,        linkedPullRequest,        linkedPullRequestStatus: null,      }),    ).toEqual(mergedPr);    expect(      nextThreadChangeRequestSnapshot({        threadBranch: null,        gitStatus: null,        snapshot,        retainTerminalOnBranchMismatch: false,        linkedPullRequest,        linkedPullRequestStatus: null,      }),    ).toBeUndefined();  });   it("clears an old snapshot when a different pull request is linked", () => {    const snapshot = {      ...snapshotFor(featureBranch, mergedPr, provider),      linkedPullRequest: { ...linkedPullRequest, number: 41 },    };     expect(      nextThreadChangeRequestSnapshot({        threadBranch: featureBranch,        gitStatus: null,        snapshot,        retainTerminalOnBranchMismatch: true,        linkedPullRequest,        linkedPullRequestStatus: null,      }),    ).toBeNull();  });   it("removes a linked pull request snapshot after the link is cleared", () => {    const snapshot = {      ...snapshotFor(featureBranch, mergedPr, provider),      linkedPullRequest,    };     expect(      resolveDisplayedThreadPr({        threadBranch: featureBranch,        gitStatus: status({ refName: "main", pr: null }),        snapshot,        retainTerminalOnBranchMismatch: true,      }),    ).toBeNull();    expect(      nextThreadChangeRequestSnapshot({        threadBranch: featureBranch,        gitStatus: null,        snapshot,        retainTerminalOnBranchMismatch: true,      }),    ).toBeNull();  });   it("after caching a merged PR, resolves main status back to the cached feature PR", () => {    const matchingStatus = status({      refName: featureBranch,      pr: mergedPr,      sourceControlProvider: provider,    });    const cached = nextThreadChangeRequestSnapshot({      threadBranch: featureBranch,      gitStatus: matchingStatus,      snapshot: undefined,      retainTerminalOnBranchMismatch: true,    });    expect(cached).toEqual(snapshotFor(featureBranch, mergedPr, provider));     const mainStatus = status({      refName: "main",      isDefaultRef: true,      pr: {        number: 99,        title: "Unrelated main PR",        url: "https://github.com/pingdotgg/t3code/pull/99",        baseRef: "main",        headRef: "main",        state: "open",      },      sourceControlProvider: provider,    });     expect(      resolveDisplayedThreadPr({        threadBranch: featureBranch,        gitStatus: mainStatus,        snapshot: cached as ThreadChangeRequestSnapshot,        retainTerminalOnBranchMismatch: true,      }),    ).toEqual(mergedPr);    expect(      resolveDisplayedThreadPrProvider({        threadBranch: featureBranch,        gitStatus: mainStatus,        snapshot: cached as ThreadChangeRequestSnapshot,        retainTerminalOnBranchMismatch: true,      }),    ).toEqual(provider);  });   it("never attaches a PR reported by main to the feature thread", () => {    const mainPr = {      number: 99,      title: "Unrelated main PR",      url: "https://github.com/pingdotgg/t3code/pull/99",      baseRef: "develop",      headRef: "main",      state: "merged" as const,    };    expect(      resolveDisplayedThreadPr({        threadBranch: featureBranch,        gitStatus: status({ refName: "main", pr: mainPr }),        snapshot: undefined,        retainTerminalOnBranchMismatch: true,      }),    ).toBeNull();    expect(      nextThreadChangeRequestSnapshot({        threadBranch: featureBranch,        gitStatus: status({ refName: "main", pr: mainPr }),        snapshot: undefined,        retainTerminalOnBranchMismatch: true,      }),    ).toBeNull();  });   it("does not show a cached open PR across a branch mismatch", () => {    const openSnapshot = snapshotFor(featureBranch, {      ...mergedPr,      state: "open",      title: "Still open",    });     expect(      resolveDisplayedThreadPr({        threadBranch: featureBranch,        gitStatus: status({ refName: "main", pr: null }),        snapshot: openSnapshot,        retainTerminalOnBranchMismatch: true,      }),    ).toBeNull();  });   it("retains a cached closed PR across a branch mismatch", () => {    const closedPr = { ...mergedPr, state: "closed" as const, title: "Closed feature" };    const closedSnapshot = snapshotFor(featureBranch, closedPr, provider);     expect(      resolveDisplayedThreadPr({        threadBranch: featureBranch,        gitStatus: status({ refName: "main", pr: null }),        snapshot: closedSnapshot,        retainTerminalOnBranchMismatch: true,      }),    ).toEqual(closedPr);  });   it("does not retain or display a terminal PR when a worktree switches branches", () => {    const terminalSnapshot = snapshotFor(featureBranch, mergedPr, provider);    const mismatchedStatus = status({ refName: "feature/other", pr: null });     expect(      resolveDisplayedThreadPr({        threadBranch: featureBranch,        gitStatus: mismatchedStatus,        snapshot: terminalSnapshot,        retainTerminalOnBranchMismatch: false,      }),    ).toBeNull();    expect(      resolveDisplayedThreadPrProvider({        threadBranch: featureBranch,        gitStatus: mismatchedStatus,        snapshot: terminalSnapshot,        retainTerminalOnBranchMismatch: false,      }),    ).toBeUndefined();    expect(      nextThreadChangeRequestSnapshot({        threadBranch: featureBranch,        gitStatus: mismatchedStatus,        snapshot: terminalSnapshot,        retainTerminalOnBranchMismatch: false,      }),    ).toBeNull();  });   it("retains a local terminal snapshot when thread metadata follows the new branch", () => {    const otherBranchSnapshot = snapshotFor("feature/other", mergedPr, provider);     expect(      resolveDisplayedThreadPr({        threadBranch: featureBranch,        gitStatus: status({ refName: "main", pr: null }),        snapshot: otherBranchSnapshot,        retainTerminalOnBranchMismatch: true,      }),    ).toEqual(mergedPr);  });   it("retains a terminal snapshot when a local thread and status move to a branch with no PR", () => {    const terminalSnapshot = snapshotFor(featureBranch, mergedPr, provider);     expect(      nextThreadChangeRequestSnapshot({        threadBranch: "main",        gitStatus: status({ refName: "main", pr: null }),        snapshot: terminalSnapshot,        retainTerminalOnBranchMismatch: true,      }),    ).toBeUndefined();    expect(      resolveDisplayedThreadPr({        threadBranch: "main",        gitStatus: status({ refName: "main", pr: null }),        snapshot: terminalSnapshot,        retainTerminalOnBranchMismatch: true,      }),    ).toEqual(mergedPr);  });   it("clears an open snapshot when a local thread moves to a branch with no PR", () => {    const openSnapshot = snapshotFor(featureBranch, { ...mergedPr, state: "open" });     expect(      nextThreadChangeRequestSnapshot({        threadBranch: "main",        gitStatus: status({ refName: "main", pr: null }),        snapshot: openSnapshot,        retainTerminalOnBranchMismatch: true,      }),    ).toBeNull();  });   it("clears an open snapshot when a local checkout moves to a different branch", () => {    const openSnapshot = snapshotFor(featureBranch, { ...mergedPr, state: "open" });     expect(      nextThreadChangeRequestSnapshot({        threadBranch: featureBranch,        gitStatus: status({ refName: "main", pr: null }),

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