import { useCallback, useEffect, useState } from "react";
import type { ProjectInfo } from "../api";
import type { ColorTheme, Column, MergeResult, Task, TaskCreateInput, ThemeMode } from "@fusion/core";
import type { UseProjectActionsResult } from "../hooks/useProjectActions";
import type { ModalManager } from "../hooks/useModalManager";
import type { UseTaskHandlersResult } from "../hooks/useTaskHandlers";
import type { Toast, ToastType } from "../hooks/useToast";
import { ModalErrorBoundary } from "./ErrorBoundary";
import { TaskDetailModal } from "./TaskDetailModal";
import { SettingsModal } from "./SettingsModal";
import { GitHubImportModal } from "./GitHubImportModal";
import { PlanningModeModal } from "./PlanningModeModal";
import { SubtaskBreakdownModal } from "./SubtaskBreakdownModal";
import { TerminalModal } from "./TerminalModal";
import { ScriptsModal } from "./ScriptsModal";
import { FileBrowserModal } from "./FileBrowserModal";
import { UsageIndicator } from "./UsageIndicator";
import { ScheduledTasksModal } from "./ScheduledTasksModal";
import { NewTaskModal } from "./NewTaskModal";
import { ActivityLogModal } from "./ActivityLogModal";
import { GitManagerModal } from "./GitManagerModal";
import { WorkflowStepManager } from "./WorkflowStepManager";
import { AgentListModal } from "./AgentListModal";
import { SetupWizardModal } from "./SetupWizardModal";
import { ModelOnboardingModal } from "./ModelOnboardingModal";
import { ToastContainer } from "./ToastContainer";

interface AppModalsProps {
  projectId?: string;
  tasks: Task[];
  projects: ProjectInfo[];
  currentProject: ProjectInfo | null;
  addToast: (message: string, type?: ToastType) => void;
  toasts: Toast[];
  removeToast: (id: number) => void;
  modalManager: ModalManager;
  projectActions: Pick<UseProjectActionsResult, "handleAddProject" | "handleSetupComplete" | "handleModelOnboardingComplete">;
  taskHandlers: Pick<UseTaskHandlersResult, "handleModalCreate" | "handlePlanningTaskCreated" | "handlePlanningTasksCreated" | "handleSubtaskTasksCreated" | "handleGitHubImport">;
  taskOperations: {
    moveTask: (taskId: string, column: Column, position?: number) => Promise<Task>;
    deleteTask: (taskId: string) => Promise<Task>;
    mergeTask: (taskId: string) => Promise<MergeResult>;
    retryTask: (taskId: string) => Promise<Task>;
    duplicateTask: (taskId: string) => Promise<Task>;
  };
  deepLink: {
    handleDetailClose: () => void;
  };
  settings: {
    prAuthAvailable: boolean;
    themeMode: ThemeMode;
    colorTheme: ColorTheme;
    setThemeMode: (mode: ThemeMode) => void;
    setColorTheme: (theme: ColorTheme) => void;
  };
  /** Optional override for the settings modal close handler. When provided, this is called instead of modalManager.closeSettings. */
  onSettingsClose?: () => void;
  /** Optional callback to reopen the onboarding guide from Settings. Closes Settings and opens ModelOnboardingModal. */
  onReopenOnboarding?: () => void;
}

export function AppModals({
  projectId,
  tasks,
  projects,
  currentProject,
  addToast,
  toasts,
  removeToast,
  modalManager,
  projectActions,
  taskHandlers,
  taskOperations,
  deepLink,
  settings,
  onSettingsClose,
  onReopenOnboarding,
}: AppModalsProps) {
  const [firstCreatedTask, setFirstCreatedTask] = useState<Task | null>(null);

  // Use the override handler if provided, otherwise fall back to modalManager.closeSettings
  const handleSettingsClose = onSettingsClose ?? modalManager.closeSettings;

  const handleOpenNewTask = useCallback(() => {
    modalManager.openNewTask();
  }, [modalManager]);

  const handleOpenGitHubImport = useCallback(() => {
    modalManager.openGitHubImport();
  }, [modalManager]);

  const handleOnboardingViewTask = useCallback((task: Task) => {
    setFirstCreatedTask(null);
    modalManager.closeModelOnboarding();
    modalManager.openDetailTask(task);
  }, [modalManager]);

  const handleModalCreateWithOnboardingTracking = useCallback(
    async (input: TaskCreateInput): Promise<Task> => {
      const task = await taskHandlers.handleModalCreate(input);
      if (modalManager.modelOnboardingOpen) {
        setFirstCreatedTask(task);
      }
      return task;
    },
    [taskHandlers.handleModalCreate, modalManager.modelOnboardingOpen],
  );

  useEffect(() => {
    if (!modalManager.modelOnboardingOpen && firstCreatedTask) {
      setFirstCreatedTask(null);
    }
  }, [modalManager.modelOnboardingOpen, firstCreatedTask]);

  return (
    <>
      {modalManager.detailTask && (
        <ModalErrorBoundary>
          <TaskDetailModal
            task={modalManager.detailTask}
            projectId={projectId}
            tasks={tasks}
            onClose={deepLink.handleDetailClose}
            onOpenDetail={modalManager.openDetailTask}
            onMoveTask={taskOperations.moveTask}
            onDeleteTask={taskOperations.deleteTask}
            onMergeTask={taskOperations.mergeTask}
            onRetryTask={taskOperations.retryTask}
            onDuplicateTask={taskOperations.duplicateTask}
            onTaskUpdated={modalManager.updateDetailTask}
            addToast={addToast}
            prAuthAvailable={settings.prAuthAvailable}
            initialTab={modalManager.detailTaskInitialTab}
          />
        </ModalErrorBoundary>
      )}

      {modalManager.settingsOpen && (
        <ModalErrorBoundary>
          <SettingsModal
            onClose={handleSettingsClose}
            addToast={addToast}
            initialSection={modalManager.settingsInitialSection}
            projectId={projectId}
            themeMode={settings.themeMode}
            colorTheme={settings.colorTheme}
            onThemeModeChange={settings.setThemeMode}
            onColorThemeChange={settings.setColorTheme}
            onReopenOnboarding={onReopenOnboarding}
          />
        </ModalErrorBoundary>
      )}

      <GitHubImportModal
        isOpen={modalManager.githubImportOpen}
        onClose={modalManager.closeGitHubImport}
        onImport={taskHandlers.handleGitHubImport}
        tasks={tasks}
        projectId={projectId}
      />

      <ModalErrorBoundary>
        <PlanningModeModal
          isOpen={modalManager.isPlanningOpen}
          onClose={modalManager.closePlanning}
          onTaskCreated={taskHandlers.handlePlanningTaskCreated}
          onTasksCreated={taskHandlers.handlePlanningTasksCreated}
          tasks={tasks}
          initialPlan={modalManager.planningInitialPlan ?? undefined}
          projectId={projectId}
          resumeSessionId={modalManager.planningResumeSessionId}
        />
      </ModalErrorBoundary>

      <ModalErrorBoundary>
        <SubtaskBreakdownModal
          isOpen={modalManager.isSubtaskOpen}
          onClose={modalManager.closeSubtask}
          initialDescription={modalManager.subtaskInitialDescription ?? ""}
          onTasksCreated={taskHandlers.handleSubtaskTasksCreated}
          projectId={projectId}
          resumeSessionId={modalManager.subtaskResumeSessionId}
        />
      </ModalErrorBoundary>

      <TerminalModal
        isOpen={modalManager.terminalOpen}
        onClose={modalManager.closeTerminal}
        initialCommand={modalManager.terminalInitialCommand}
        projectId={projectId}
      />

      <ScriptsModal
        isOpen={modalManager.scriptsOpen}
        onClose={modalManager.closeScripts}
        addToast={addToast}
        onRunScript={modalManager.runScript}
        projectId={projectId}
      />

      {modalManager.filesOpen && (
        <FileBrowserModal
          initialWorkspace={modalManager.fileBrowserWorkspace}
          isOpen={true}
          onClose={modalManager.closeFiles}
          onWorkspaceChange={modalManager.setFileWorkspace}
          projectId={projectId}
        />
      )}

      <UsageIndicator
        isOpen={modalManager.usageOpen}
        onClose={modalManager.closeUsage}
        projectId={projectId}
      />

      {modalManager.schedulesOpen && (
        <ScheduledTasksModal
          onClose={modalManager.closeSchedules}
          addToast={addToast}
          projectId={projectId}
        />
      )}

      <ModalErrorBoundary>
        <NewTaskModal
          isOpen={modalManager.newTaskModalOpen}
          onClose={modalManager.closeNewTask}
          tasks={tasks}
          onCreateTask={handleModalCreateWithOnboardingTracking}
          addToast={addToast}
          projectId={projectId}
          onPlanningMode={modalManager.openPlanningWithInitialPlan}
          onSubtaskBreakdown={modalManager.openSubtaskBreakdown}
        />
      </ModalErrorBoundary>

      <ActivityLogModal
        isOpen={modalManager.activityLogOpen}
        onClose={modalManager.closeActivityLog}
        tasks={tasks}
        projectId={projectId}
        projects={projects}
        currentProject={currentProject}
        onOpenTaskDetail={(taskId) => {
          const task = tasks.find((candidate) => candidate.id === taskId);
          if (task) {
            modalManager.openDetailTask(task);
          }
        }}
      />

      <ModalErrorBoundary>
        <GitManagerModal
          isOpen={modalManager.gitManagerOpen}
          onClose={modalManager.closeGitManager}
          tasks={tasks}
          addToast={addToast}
          projectId={projectId}
        />
      </ModalErrorBoundary>

      <ModalErrorBoundary>
        <WorkflowStepManager
          isOpen={modalManager.workflowStepsOpen}
          onClose={modalManager.closeWorkflowSteps}
          addToast={addToast}
          projectId={projectId}
        />
      </ModalErrorBoundary>

      <AgentListModal
        isOpen={modalManager.agentsOpen}
        onClose={modalManager.closeAgents}
        addToast={addToast}
        projectId={projectId}
      />

      {modalManager.setupWizardOpen && (
        <SetupWizardModal
          onProjectRegistered={projectActions.handleSetupComplete}
          onClose={modalManager.closeSetupWizard}
        />
      )}

      {modalManager.modelOnboardingOpen && (
        <ModelOnboardingModal
          onComplete={projectActions.handleModelOnboardingComplete}
          addToast={addToast}
          projectId={projectId ?? ""}
          onOpenSetupWizard={projectActions.handleAddProject}
          onOpenNewTask={handleOpenNewTask}
          onOpenGitHubImport={handleOpenGitHubImport}
          firstCreatedTask={firstCreatedTask}
          onViewTask={handleOnboardingViewTask}
        />
      )}

      <ToastContainer toasts={toasts} onRemove={removeToast} />
    </>
  );
}