import {observer} from "mobx-react";
import {Page} from "../layout/Page";
import {action, makeObservable, observable, reaction, runInAction} from "mobx";
import React from "react";
import {DataTable} from "../data-tables/DataTable";
import {Column, TableDescriptor} from "../../utils/tables";
import {PreparationDirection} from "../../models/preparationDirection";
import {get} from "../../utils/request";
import {datetimeConverter} from "../../utils/converters";
import {Button, Col, Row} from "react-bootstrap";
import {ModalState} from "../../utils/modalState";
import {UserService} from "../../services/UserService";
import {DiplomaTopic} from "../../models/diplomaTopic";
import {TeacherData} from "../../models/teacherData";
import {fullName} from "../../models/participant";
import DiplomaTopicModal from "./DiplomaTopicModal";
import {FontAwesomeIcon} from "@fortawesome/react-fontawesome";
import _ from "lodash";
import {ThinkService} from "../../services/ThinkService";
import {DiplomaTopicFilterModal} from "./DiplomaTopicFilterModal";

const getAllDiplomaTopics = () => {
    return get<DiplomaTopic[]>("diploma-topic/all");
}

class DiplomaTopicPageState {
    constructor() {
        makeObservable(this);
        this.updateDiplomaTopics();
        reaction(() => this.diplomaTopics, () => {
            this.tableDescriptor = new TableDescriptor<DiplomaTopic>([
                    new Column<DiplomaTopic, string>('name', 'Название', undefined, (dp) => {
                        return <FontAwesomeIcon icon={'file-pen'} style={{'cursor': 'pointer'}}
                                                data-value={dp.id} onClick={this.onIconClicked}/>;
                    }),
                    new Column<DiplomaTopic, TeacherData>('teacher', 'Преподаватель', (value) => {
                        return value ? fullName(value.participant) : "Не указан";
                    }),
                    new Column<DiplomaTopic, PreparationDirection>('preparationDirection', 'Код направления подготовки', value => {
                        return value ? value.code : "Не указано";
                    }),
                    new Column<DiplomaTopic, PreparationDirection>('preparationDirection', 'Название Направления подготовки', value => {
                        return value ? value.name : "Не указано";
                    }),
                    new Column<DiplomaTopic, string>('createdAt', 'Дата создания', datetimeConverter),
                    new Column<DiplomaTopic, string>('updatedAt', 'Дата обновления', datetimeConverter),
                ], this.diplomaTopics, true, this.filters
            );
        }, {fireImmediately: true});
    }

    @observable diplomaTopics: DiplomaTopic[] = [];
    @observable selectedTopic: DiplomaTopic = undefined;
    @observable tableDescriptor: TableDescriptor<DiplomaTopic>;
    @observable diplomaTopicModalState = new ModalState(false, this.updateDiplomaTopics);
    @observable diplomaTopicEditModalState = new ModalState(false, this.updateDiplomaTopics);

    @observable filters: ((group: DiplomaTopic) => boolean)[] = [];

    @observable filterModalState = new ModalState();

    @action.bound
    updateDiplomaTopics() {
        ThinkService.think();
        getAllDiplomaTopics().then(dt => {
            runInAction(() => {
                this.diplomaTopics = dt;
            })
        }).finally(() => {
            ThinkService.completeAll();
        });
    }

    @action.bound
    onIconClicked(event: React.MouseEvent<any>) {
        const pd = this.diplomaTopics.find(pd => pd.id === _.toNumber(event.currentTarget.getAttribute('data-value')));
        if (pd) {
            this.selectedTopic = pd;
            this.diplomaTopicEditModalState.open();
        }
    }
}

@observer
export class DiplomaTopicListPage extends Page {
    constructor(props: any) {
        super(props);
        makeObservable(this);
        this.fields = new DiplomaTopicPageState();
    }

    @observable fields: DiplomaTopicPageState;

    get page() {
        return <>
            {
                <>
                    {
                        this.fields.tableDescriptor &&
                        <>
                            <DataTable tableDescriptor={this.fields.tableDescriptor} name={'Темы ВКР'}
                                       additionalButtons={<AdditionalButtons state={this.fields}/>}
                                       filterModalState={this.fields.filterModalState}
                            />
                            <DiplomaTopicFilterModal modalState={this.fields.filterModalState} filters={this.fields.filters}/>
                        </>
                    }
                    <DiplomaTopicModal modalState={this.fields.diplomaTopicModalState}/>
                    {
                        this.fields.selectedTopic &&
                        <DiplomaTopicModal modalState={this.fields.diplomaTopicEditModalState} topic={this.fields.selectedTopic}/>
                    }
                </>
            }
        </>
    }
}

const AdditionalButtons = observer(({state}: {state: DiplomaTopicPageState}) => {
    return (
        <div className={'d-flex'}>
              <div>
                {(UserService.isSecretary || UserService.isAdministrator) && (
                    <Button variant="outline-secondary" size="sm" className="me-2" onClick={state.diplomaTopicModalState.open}>
                        <FontAwesomeIcon icon={'add'} style={{'cursor': 'pointer'}}/>
                    </Button>
                )}
            </div>
            <div>
                <Button variant="outline-secondary" size="sm" className="me-2" onClick={state.updateDiplomaTopics}>
                    <FontAwesomeIcon icon={'rotate'} style={{'cursor': 'pointer'}}/>
                </Button>
            </div>
        </div>
    );
});