import type { Attachment } from "@/types/proto/api/v1/attachment_service_pb";
import type { Location, MemoRelation } from "@/types/proto/api/v1/memo_service_pb";
import { Visibility } from "@/types/proto/api/v1/memo_service_pb";
import type { LocalFile } from "../types/attachment";

export type LoadingKey = "saving" | "uploading" | "loading";
export type VoiceRecorderPermission = "unknown" | "granted" | "denied";
export type VoiceRecorderStatus = "idle" | "requesting_permission" | "recording" | "recorded" | "error" | "unsupported";

export interface VoiceRecordingPreview {
  localFile: LocalFile;
  durationSeconds: number;
  mimeType: string;
}

export interface EditorState {
  content: string;
  metadata: {
    visibility: Visibility;
    attachments: Attachment[];
    relations: MemoRelation[];
    location?: Location;
  };
  ui: {
    isFocusMode: boolean;
    isLoading: {
      saving: boolean;
      uploading: boolean;
      loading: boolean;
    };
    isComposing: boolean;
  };
  timestamps: {
    createTime?: Date;
    updateTime?: Date;
  };
  localFiles: LocalFile[];
  voiceRecorder: {
    isSupported: boolean;
    permission: VoiceRecorderPermission;
    status: VoiceRecorderStatus;
    elapsedSeconds: number;
    error?: string;
    recording?: VoiceRecordingPreview;
  };
}

export type EditorAction =
  | { type: "INIT_MEMO"; payload: { content: string; metadata: EditorState["metadata"]; timestamps: EditorState["timestamps"] } }
  | { type: "UPDATE_CONTENT"; payload: string }
  | { type: "SET_METADATA"; payload: Partial<EditorState["metadata"]> }
  | { type: "ADD_ATTACHMENT"; payload: Attachment }
  | { type: "REMOVE_ATTACHMENT"; payload: string }
  | { type: "ADD_RELATION"; payload: MemoRelation }
  | { type: "REMOVE_RELATION"; payload: string }
  | { type: "ADD_LOCAL_FILE"; payload: LocalFile }
  | { type: "REMOVE_LOCAL_FILE"; payload: string }
  | { type: "CLEAR_LOCAL_FILES" }
  | { type: "TOGGLE_FOCUS_MODE" }
  | { type: "SET_LOADING"; payload: { key: LoadingKey; value: boolean } }
  | { type: "SET_COMPOSING"; payload: boolean }
  | { type: "SET_TIMESTAMPS"; payload: Partial<EditorState["timestamps"]> }
  | { type: "SET_VOICE_RECORDER_SUPPORT"; payload: boolean }
  | { type: "SET_VOICE_RECORDER_PERMISSION"; payload: VoiceRecorderPermission }
  | { type: "SET_VOICE_RECORDER_STATUS"; payload: VoiceRecorderStatus }
  | { type: "SET_VOICE_RECORDER_ELAPSED"; payload: number }
  | { type: "SET_VOICE_RECORDER_ERROR"; payload?: string }
  | { type: "SET_VOICE_RECORDING"; payload?: VoiceRecordingPreview }
  | { type: "RESET" };

export const initialState: EditorState = {
  content: "",
  metadata: {
    visibility: Visibility.PRIVATE,
    attachments: [],
    relations: [],
    location: undefined,
  },
  ui: {
    isFocusMode: false,
    isLoading: {
      saving: false,
      uploading: false,
      loading: false,
    },
    isComposing: false,
  },
  timestamps: {
    createTime: undefined,
    updateTime: undefined,
  },
  localFiles: [],
  voiceRecorder: {
    isSupported: true,
    permission: "unknown",
    status: "idle",
    elapsedSeconds: 0,
    error: undefined,
    recording: undefined,
  },
};
