import { describe, expect, it } from "vitest";
import {
  buildAgentConversationHandoffPrompt,
  handoffProjectPathForConversation,
  isAgentGUIHomeStatusNoticeVisible,
  resolveAgentGUITuttiStopTargets,
  resolveAgentGUIInteractionDisabledReason,
  resolveAgentGUIHomeNoticeChrome,
  resolveAgentGUIStopControl,
  shouldShowAgentGUIStopButton
} from "./agentGUIDetailModelHelpers.ts";

describe("buildAgentConversationHandoffPrompt", () => {
  it("delegates the active conversation to the canonical session handoff draft", () => {
    expect(
      buildAgentConversationHandoffPrompt({
        activeConversation: {
          id: "session-1",
          agentTargetId: "local:claude-code",
          provider: "claude-code",
          title: "Session 1",
          titleFallback: null,
          status: "completed",
          cwd: "/workspace/project-a",
          updatedAtUnixMs: 1
        },
        currentUserId: "user-1",
        labels: { untitledConversationTitle: "Untitled conversation" },
        selectedAgentTarget: {
          targetId: "local:claude-code",
          agentTargetId: "local:claude-code",
          label: "Claude Code",
          provider: "claude-code",
          ref: {
            kind: "agent-directory",
            provider: "claude-code",
            agentTargetId: "local:claude-code"
          }
        },
        uiLanguage: "en",
        workspaceId: "room-1"
      })
    ).toBe(
      "[@Session 1](mention://agent-session/session-1?agentTargetId=local%3Aclaude-code&workspaceId=room-1) "
    );
  });
});

describe("shouldShowAgentGUIStopButton", () => {
  const idle = {
    hasPendingApproval: false,
    hasPendingInteractivePrompt: false,
    isAuthBlocked: false,
    isCancelPending: false,
    isConversationBusy: false,
    isCreatingConversation: false,
    hasPendingSubmitStopTarget: false,
    isInterrupting: false,
    isSubmitting: false,
    isUnavailable: false
  };

  it("allows immediate stop while a new conversation is still activating", () => {
    expect(
      shouldShowAgentGUIStopButton({
        ...idle,
        isCreatingConversation: true,
        isSubmitting: true
      })
    ).toBe(true);
  });

  it("keeps ordinary submission races hidden when there is no stoppable work", () => {
    expect(shouldShowAgentGUIStopButton({ ...idle, isSubmitting: true })).toBe(
      false
    );
  });

  it("shows Stop when Activity Core has an exact pending-submit target", () => {
    expect(
      shouldShowAgentGUIStopButton({
        ...idle,
        hasPendingSubmitStopTarget: true,
        isSubmitting: true
      })
    ).toBe(true);
  });

  it("keeps authentication and availability gates authoritative", () => {
    expect(
      shouldShowAgentGUIStopButton({
        ...idle,
        isAuthBlocked: true,
        isCreatingConversation: true
      })
    ).toBe(false);
  });
});

describe("resolveAgentGUIInteractionDisabledReason", () => {
  it("uses the approval reason for approval prompts", () => {
    expect(
      resolveAgentGUIInteractionDisabledReason({
        promptKind: "approval",
        approvalReason: "The shared Agent owner is offline",
        interactivePromptReason: "The shared Agent caller is offline"
      })
    ).toBe("The shared Agent owner is offline");
  });

  it("uses the interactive prompt reason for non-approval prompts", () => {
    expect(
      resolveAgentGUIInteractionDisabledReason({
        promptKind: "ask-user",
        approvalReason: "The shared Agent owner is offline",
        interactivePromptReason: "The shared Agent caller is offline"
      })
    ).toBe("The shared Agent caller is offline");
  });

  it("does not expose a reason when there is no active prompt", () => {
    expect(
      resolveAgentGUIInteractionDisabledReason({
        promptKind: null,
        approvalReason: "The shared Agent owner is offline",
        interactivePromptReason: "The shared Agent caller is offline"
      })
    ).toBeNull();
  });
});

describe("resolveAgentGUITuttiStopTargets", () => {
  it("stops only the Issue cascade when aggregate work outlives the source Turn", () => {
    expect(
      resolveAgentGUITuttiStopTargets({
        executionActive: true,
        sourceHasStoppableWork: false
      })
    ).toEqual({ stopExecution: true, stopSession: false });
  });

  it("stops both the Issue cascade and a live source Turn", () => {
    expect(
      resolveAgentGUITuttiStopTargets({
        executionActive: true,
        sourceHasStoppableWork: true
      })
    ).toEqual({ stopExecution: true, stopSession: true });
  });

  it("preserves ordinary Session stop outside Tutti execution", () => {
    expect(
      resolveAgentGUITuttiStopTargets({
        executionActive: false,
        sourceHasStoppableWork: false
      })
    ).toEqual({ stopExecution: false, stopSession: true });
  });
});

describe("Home status presentation", () => {
  it.each([
    "agent-sharing-revoked",
    "transport-connecting",
    "transport-unavailable"
  ] as const)(
    "gives %s recovery chrome priority over other bottom-dock notices",
    (kind) => {
      expect(
        isAgentGUIHomeStatusNoticeVisible({
          kind,
          message: "Connection unavailable",
          canRetry: false
        })
      ).toBe(true);
    }
  );

  it("does not hide existing chrome while reconnecting is still delayed", () => {
    expect(isAgentGUIHomeStatusNoticeVisible(null)).toBe(false);
    expect(
      isAgentGUIHomeStatusNoticeVisible({
        kind: "failed",
        message: "Existing failure",
        canRetry: false
      })
    ).toBe(false);
  });

  it.each(["transport-connecting", "transport-unavailable"] as const)(
    "keeps the pending prompt visible for interaction-scoped %s chrome",
    (kind) => {
      expect(
        isAgentGUIHomeStatusNoticeVisible({
          kind,
          message: "Connection unavailable",
          canRetry: false,
          interactionScoped: true
        })
      ).toBe(false);
    }
  );

  it("projects target connection chrome onto the empty Home composer", () => {
    const inlineNoticeChrome = {
      auth: null,
      approval: null,
      recovery: {
        kind: "failed" as const,
        message: "Existing failure"
      },
      rawState: null
    };
    const sessionChrome = {
      auth: null,
      approval: null,
      recovery: {
        kind: "transport-connecting" as const,
        message: "Connecting to device..."
      },
      rawState: null
    };

    expect(
      resolveAgentGUIHomeNoticeChrome({
        inlineNoticeChrome,
        sessionChrome
      })
    ).toBe(sessionChrome);
  });

  it("keeps ordinary Home notices when target connection chrome is absent", () => {
    const inlineNoticeChrome = {
      auth: null,
      approval: null,
      recovery: {
        kind: "failed" as const,
        message: "Existing failure"
      },
      rawState: null
    };

    expect(
      resolveAgentGUIHomeNoticeChrome({
        inlineNoticeChrome,
        sessionChrome: {
          auth: null,
          approval: null,
          recovery: null,
          rawState: null
        }
      })
    ).toBe(inlineNoticeChrome);
  });

  it("keeps Stop actionable while submission commands are blocked", () => {
    expect(
      resolveAgentGUIStopControl({
        hasPendingApproval: false,
        hasPendingInteractivePrompt: false,
        isAuthBlocked: false,
        isCancelPending: false,
        isConversationBusy: true,
        isCreatingConversation: false,
        hasPendingSubmitStopTarget: false,
        isInterrupting: false,
        isSubmitting: false,
        isUnavailable: false
      })
    ).toEqual({ disabled: false, visible: true });
  });
});

describe("handoffProjectPathForConversation", () => {
  it("keeps the canonical project path for the destination session", () => {
    expect(
      handoffProjectPathForConversation({
        cwd: "/workspace/fallback",
        project: { path: " /workspace/project-a " },
        railSectionKey: "project:/workspace/project-a"
      } as never)
    ).toBe("/workspace/project-a");
  });

  it("falls back to the source cwd when project metadata is unavailable", () => {
    expect(
      handoffProjectPathForConversation({
        cwd: " /workspace/project-b ",
        project: null,
        railSectionKey: "project:/workspace/project-b"
      } as never)
    ).toBe("/workspace/project-b");
  });

  it("omits the cwd when the source belongs to conversations", () => {
    expect(
      handoffProjectPathForConversation({
        cwd: " /workspace/conversation ",
        project: { path: " /workspace/stale-project " },
        railSectionKey: " conversations "
      } as never)
    ).toBeNull();
  });
});