import api, { getLinks } from "../api";

import { fetchRelationships } from "./accounts";
import { importFetchedAccounts } from "./importer";
import { openModal } from "./modal";

export const BLOCKS_FETCH_REQUEST = "BLOCKS_FETCH_REQUEST";
export const BLOCKS_FETCH_SUCCESS = "BLOCKS_FETCH_SUCCESS";
export const BLOCKS_FETCH_FAIL    = "BLOCKS_FETCH_FAIL";

export const BLOCKS_EXPAND_REQUEST = "BLOCKS_EXPAND_REQUEST";
export const BLOCKS_EXPAND_SUCCESS = "BLOCKS_EXPAND_SUCCESS";
export const BLOCKS_EXPAND_FAIL    = "BLOCKS_EXPAND_FAIL";

export const BLOCKS_INIT_MODAL = "BLOCKS_INIT_MODAL";

export function fetchBlocks() {
  return (dispatch, getState) => {
    dispatch(fetchBlocksRequest());

    api(getState).get("/api/v1/blocks").then(response => {
      const next = getLinks(response).refs.find(link => link.rel === "next");
      dispatch(importFetchedAccounts(response.data));
      dispatch(fetchBlocksSuccess(response.data, next ? next.uri : null));
      dispatch(fetchRelationships(response.data.map(item => item.id)));
    }).catch(error => dispatch(fetchBlocksFail(error)));
  };
}

export function fetchBlocksRequest() {
  return {
    type: BLOCKS_FETCH_REQUEST,
  };
}

export function fetchBlocksSuccess(accounts, next) {
  return {
    type: BLOCKS_FETCH_SUCCESS,
    accounts,
    next,
  };
}

export function fetchBlocksFail(error) {
  return {
    type: BLOCKS_FETCH_FAIL,
    error,
  };
}

export function expandBlocks() {
  return (dispatch, getState) => {
    const url = getState().getIn(["user_lists", "blocks", "next"]);

    if (url === null) {
      return;
    }

    dispatch(expandBlocksRequest());

    api(getState).get(url).then(response => {
      const next = getLinks(response).refs.find(link => link.rel === "next");
      dispatch(importFetchedAccounts(response.data));
      dispatch(expandBlocksSuccess(response.data, next ? next.uri : null));
      dispatch(fetchRelationships(response.data.map(item => item.id)));
    }).catch(error => dispatch(expandBlocksFail(error)));
  };
}

export function expandBlocksRequest() {
  return {
    type: BLOCKS_EXPAND_REQUEST,
  };
}

export function expandBlocksSuccess(accounts, next) {
  return {
    type: BLOCKS_EXPAND_SUCCESS,
    accounts,
    next,
  };
}

export function expandBlocksFail(error) {
  return {
    type: BLOCKS_EXPAND_FAIL,
    error,
  };
}

export function initBlockModal(account) {
  return dispatch => {
    dispatch({
      type: BLOCKS_INIT_MODAL,
      account,
    });

    dispatch(openModal({ modalType: "BLOCK" }));
  };
}