/* global gapi */
import * as types from './mutation_types';

const gapiResourceListRequest = ({ resource, params, commit, mutation, payloadKey }) =>
  new Promise((resolve, reject) => {
    const request = resource.list(params);

    return request.then(
      resp => {
        const { result } = resp;

        commit(mutation, result[payloadKey]);

        resolve();
      },
      resp => {
        reject(resp);
      },
    );
  });

export const setProject = ({ commit }, selectedProject) => {
  commit(types.SET_PROJECT, selectedProject);
};

export const setZone = ({ commit }, selectedZone) => {
  commit(types.SET_ZONE, selectedZone);
};

export const setMachineType = ({ commit }, selectedMachineType) => {
  commit(types.SET_MACHINE_TYPE, selectedMachineType);
};

export const setIsValidatingProjectBilling = ({ commit }, isValidatingProjectBilling) => {
  commit(types.SET_IS_VALIDATING_PROJECT_BILLING, isValidatingProjectBilling);
};

export const fetchProjects = ({ commit }) =>
  gapiResourceListRequest({
    resource: gapi.client.cloudresourcemanager.projects,
    params: {},
    commit,
    mutation: types.SET_PROJECTS,
    payloadKey: 'projects',
  });

export const validateProjectBilling = ({ dispatch, commit, state }) =>
  new Promise((resolve, reject) => {
    const request = gapi.client.cloudbilling.projects.getBillingInfo({
      name: `projects/${state.selectedProject.projectId}`,
    });

    commit(types.SET_ZONE, '');
    commit(types.SET_MACHINE_TYPE, '');

    return request.then(
      resp => {
        const { billingEnabled } = resp.result;

        commit(types.SET_PROJECT_BILLING_STATUS, Boolean(billingEnabled));
        dispatch('setIsValidatingProjectBilling', false);
        resolve();
      },
      resp => {
        dispatch('setIsValidatingProjectBilling', false);
        reject(resp);
      },
    );
  });

export const fetchZones = ({ commit, state }) =>
  gapiResourceListRequest({
    resource: gapi.client.compute.zones,
    params: {
      project: state.selectedProject.projectId,
    },
    commit,
    mutation: types.SET_ZONES,
    payloadKey: 'items',
  });

export const fetchMachineTypes = ({ commit, state }) =>
  gapiResourceListRequest({
    resource: gapi.client.compute.machineTypes,
    params: {
      project: state.selectedProject.projectId,
      zone: state.selectedZone,
    },
    commit,
    mutation: types.SET_MACHINE_TYPES,
    payloadKey: 'items',
  });

// prevent babel-plugin-rewire from generating an invalid default during karma tests
export default () => {};