import type { AppMode, SortField, SortDirection, Project, ViewMode, GitHubRepoInfo, UnifiedRepo, QuickFilter, AddDirectoryDialogState, RemoteStatus, OpenModalState, ModalUpdate } from "../types/index.ts";

/**
 * Action creators for app state
 * Each returns a specific action type for better type inference in tests
 */

export const setProjects = (projects: Project[]) => ({
  type: "SET_PROJECTS" as const,
  payload: projects,
});

export const setLoading = (loading: boolean) => ({
  type: "SET_LOADING" as const,
  payload: loading,
});

export const setError = (error: string | null) => ({
  type: "SET_ERROR" as const,
  payload: error,
});

export const setMessage = (message: string | null) => ({
  type: "SET_MESSAGE" as const,
  payload: message,
});

export const moveCursor = (index: number, maxIndex: number) => ({
  type: "MOVE_CURSOR" as const,
  payload: { index, maxIndex },
});

export const toggleSelection = (index: number) => ({
  type: "TOGGLE_SELECTION" as const,
  payload: index,
});

export const selectAll = (count: number) => ({
  type: "SELECT_ALL" as const,
  payload: { count },
});

export const deselectAll = () => ({
  type: "DESELECT_ALL" as const,
});

export const setFilter = (text: string) => ({
  type: "SET_FILTER" as const,
  payload: text,
});

export const setSort = (by: SortField, direction: SortDirection) => ({
  type: "SET_SORT" as const,
  payload: { by, direction },
});

export const cycleSort = () => ({
  type: "CYCLE_SORT" as const,
});

export const setMode = (mode: AppMode) => ({
  type: "SET_MODE" as const,
  payload: mode,
});

export const startAction = (action: string) => ({
  type: "START_ACTION" as const,
  payload: action,
});

export const endAction = () => ({
  type: "END_ACTION" as const,
});

export const updateProgress = (current: number, total: number) => ({
  type: "UPDATE_PROGRESS" as const,
  payload: { current, total },
});

export const setScrollOffset = (offset: number) => ({
  type: "SET_SCROLL_OFFSET" as const,
  payload: offset,
});

export const updateProject = (id: string, updates: Partial<Project>) => ({
  type: "UPDATE_PROJECT" as const,
  payload: { id, updates },
});

export const updateProjectRemoteStatus = (path: string, remote: RemoteStatus | null) => ({
  type: "UPDATE_PROJECT_REMOTE_STATUS" as const,
  payload: { path, remote },
});

// Unified view action creators
export const setViewMode = (mode: ViewMode) => ({
  type: "SET_VIEW_MODE" as const,
  payload: mode,
});

export const setGitHubRepos = (repos: GitHubRepoInfo[]) => ({
  type: "SET_GITHUB_REPOS" as const,
  payload: repos,
});

export const setUnifiedRepos = (repos: UnifiedRepo[]) => ({
  type: "SET_UNIFIED_REPOS" as const,
  payload: repos,
});

export const setGitHubLoading = (loading: boolean) => ({
  type: "SET_GITHUB_LOADING" as const,
  payload: loading,
});

export const setGitHubError = (error: string | null) => ({
  type: "SET_GITHUB_ERROR" as const,
  payload: error,
});

export const cloneRepoStart = (repoId: string) => ({
  type: "CLONE_REPO_START" as const,
  payload: repoId,
});

export const cloneRepoComplete = (id: string, localPath: string) => ({
  type: "CLONE_REPO_COMPLETE" as const,
  payload: { id, localPath },
});

export const cloneRepoFailed = (id: string, error: string) => ({
  type: "CLONE_REPO_FAILED" as const,
  payload: { id, error },
});

// Quick filter actions
export const setQuickFilter = (filter: QuickFilter) => ({
  type: "SET_QUICK_FILTER" as const,
  payload: filter,
});

// Refreshing state actions
export const setRefreshing = (refreshing: boolean) => ({
  type: "SET_REFRESHING" as const,
  payload: refreshing,
});

// Language filter action
export const setLanguageFilter = (language: string | null) => ({
  type: "SET_LANGUAGE_FILTER" as const,
  payload: language,
});

// Modal actions (ADR-0012). OPEN_MODAL replaces SHOW_*_DIALOG;
// CLOSE_MODAL replaces HIDE_*_DIALOG; UPDATE_MODAL replaces UPDATE_*_DIALOG.
export const openModal = (modal: OpenModalState) => ({
  type: "OPEN_MODAL" as const,
  payload: modal,
});

export const closeModal = () => ({
  type: "CLOSE_MODAL" as const,
});

export const updateModal = (update: ModalUpdate) => ({
  type: "UPDATE_MODAL" as const,
  payload: update,
});

/**
 * Convenience: open the add-directory dialog. The dialog's step-machine
 * state lives in the useAddDirectoryFlow hook; this payload carries only
 * the optional initialPath seed.
 */
export const showAddDirectoryDialog = (initialPath?: string) => ({
  type: "OPEN_MODAL" as const,
  payload: {
    kind: "add-directory" as const,
    data: { initialPath } satisfies AddDirectoryDialogState,
  },
});