const initialState = {
  currentSettings: null,

  loading: false,
  error: null,
  success: false,
}

const mailSettingsReducer = (state = initialState, action) => {
  switch (action.type) {
    case "GET_MAIL_SETTINGS_PENDING":
      return {
        ...state,
        loading: true,
        error: null,
      }
    case "GET_MAIL_SETTINGS_FULFILLED":
      return {
        ...state,
        loading: false,
        // Even if payload is null, we still want to set loading to false
        currentSettings: action.payload || null,
      }
    case "GET_MAIL_SETTINGS_REJECTED":
      return {
        ...state,
        loading: false,
        error: action.payload || "Failed to fetch mail settings",
      }
    case "UPDATE_MAIL_SETTINGS_PENDING":
      return {
        ...state,
        loading: true,
        error: null,
        success: false,
      }
    case "UPDATE_MAIL_SETTINGS_FULFILLED":
      return {
        ...state,
        loading: false,
        currentSettings: action.payload,
        success: true,
      }
    case "UPDATE_MAIL_SETTINGS_REJECTED":
      return {
        ...state,
        loading: false,
        error: action.payload || "Failed to update mail settings",
        success: false,
      }
    case "CLEAR_MAIL_ERROR":
      return {
        ...state,
        error: null,
      }
    case "CLEAR_MAIL_SUCCESS":
      return {
        ...state,
        success: false,
      }
    default:
      return state
  }
}

export default mailSettingsReducer