import { createSlice } from '@reduxjs/toolkit';
import type { PayloadAction } from '@reduxjs/toolkit';
import type { RootState } from '../../store';

export enum ProcessState {
  UNTOUCHED = 'UNTOUCHED',
  COMPLETE = 'COMPLETE',
  ERROR = 'ERROR',
}

export enum ListingMode {
  LIST = 'LIST',
  CARD = 'CARD',
}

export interface AudioMetadata {
  name: string;
  artist: string;
  album: string;
  albumArtist: string;
  cover: string; // blob uri
}

export interface DecryptedAudioFile {
  id: string;
  fileName: string;
  raw: string; // blob uri
  decrypted: string; // blob uri
  state: ProcessState;
  errorMessage: null | string;
  metadata: AudioMetadata;
}

export interface FileListingState {
  files: DecryptedAudioFile[];
  displayMode: ListingMode;
}
const initialState: FileListingState = {
  files: [],
  displayMode: ListingMode.LIST,
};

export const fileListingSlice = createSlice({
  name: 'fileListing',
  initialState,
  reducers: {
    addNewFile: (state, { payload }: PayloadAction<{ id: string; fileName: string; blobURI: string }>) => {
      state.files.push({
        id: payload.id,
        fileName: payload.fileName,
        raw: payload.blobURI,
        decrypted: '',
        state: ProcessState.UNTOUCHED,
        errorMessage: null,
        metadata: {
          name: '',
          artist: '',
          album: '',
          albumArtist: '',
          cover: '',
        },
      });
    },
    setDecryptedContent: (state, { payload }: PayloadAction<{ id: string; decryptedBlobURI: string }>) => {
      const file = state.files.find((file) => file.id === payload.id);
      if (file) {
        file.decrypted = payload.decryptedBlobURI;
      }
    },
  },
});

export const { addNewFile, setDecryptedContent } = fileListingSlice.actions;

export const selectFileCount = (state: RootState) => state.fileListing.files.length;
export const selectFiles = (state: RootState) => state.fileListing.files;
export const selectFileListingMode = (state: RootState) => state.fileListing.displayMode;

export default fileListingSlice.reducer;