import React, {Component} from 'react';
import * as apiCalls from "../apiCalls/apiCalls";
import handleError from "../shared/failureHandler";
import Spinner from "../components/Spinner";
import BuildingCard from "../components/BuildingCard";
import { Link } from "react-router-dom";
import NoContentMessage from "../components/NoContentMessage";
import PageContentContainer from "../components/PageContentContainer";
import Breadcrumbs from "../components/Breadcrumbs";
import BreadcrumbsLink from "../components/BreadcrumbsLink";
import PageInfo from "../components/PageInfo";
/**
* page with all buildings of an institution that user is managing
*/
class BuildingsPage extends Component {
/**
* current page state
*/
state = {
buildings: [],
pendingApiCall: false,
}
/**
* Called when user wants to delete building
* @param buildingId building id
*/
onClickDelete = (buildingId) => {
// ask before delete
if(window.confirm("Do you really want to delete this building?")) {
// update api call for given building
let newBuildings = [];
const {buildings} = this.state;
for (let b of buildings) {
if(b.buildingId === buildingId) {
// set api call to true for deleted building
newBuildings.push({...b, pendingApiCall: true});
}
else {
newBuildings.push({...b});
}
}
this.setState({buildings: newBuildings});
// send delete message to server
apiCalls.deleteBuilding(buildingId).then(response => {
newBuildings = [...this.state.buildings];
newBuildings = newBuildings.filter(b => b.buildingId !== buildingId);
// if delete was successful update state
this.setState({buildings: newBuildings});
}).catch(error => {
// handle unauthorized error
return handleError(error);
});
}
}
/**
* called when page is mounted
*/
componentDidMount() {
this.setState({pendingApiCall: true})
// fetch all institution buildings from server
apiCalls.getBuildings().then(response => {
const buildings = response.data;
// set default properties for fetched buildings
for(let b of buildings) {
b.pendingApiCall = false;
}
this.setState({buildings, pendingApiCall: false});
}).catch(error => {
// handle unauthorized error
return handleError(error);
});
}
/**
* Renders page with institution buildings
* @returns {JSX.Element} page with institution buildings
*/
render() {
// maps buildings to building cards
const buildings = this.state.buildings.map(b =>
<BuildingCard key={b.buildingId} {...b} onClickDelete={this.onClickDelete}/>
);
// define page content
let content = <Spinner/>;
if (!this.state.pendingApiCall) {
content = this.state.buildings.length === 0 ? <NoContentMessage text="There are no buildings"/> : buildings;
}
// renders page
return (
<PageContentContainer>
<Breadcrumbs>
<BreadcrumbsLink to="/myInstitution" name="My Institution"/>
<li className="breadcrumb-item active">Buildings</li>
</Breadcrumbs>
<PageInfo name="Buildings">Here you can manage the institution's buildings to help visitors navigate</PageInfo>
<Link exact to="/myInstitution/buildings/addBuilding">
<button type="button" className="btn btn-lg mt-3 btn-success mb-4">
<i className="fa fa-plus-circle" /> Add new building
</button>
</Link>
{content}
</PageContentContainer>
);
}
}
export default BuildingsPage;