import {Component, EventEmitter, Input, OnChanges, Output} from '@angular/core';
import {GoalType, Need} from '../../models/Need';
import {CupboardService} from '../../services/cupboard.service';
import {catchError, of} from 'rxjs';
import {ToastsService, ToastType} from '../../services/toasts.service';
import {ModalService} from '../../services/modal.service';
import {Router} from '@angular/router';

@Component({
    selector: 'app-need-edit',
    standalone: false,
    templateUrl: './need-edit.component.html',
    styleUrl: './need-edit.component.css'
})
export class NeedEditComponent implements OnChanges {

    @Input() mode!: "Create" | "Edit"
    @Input() need?: Need;
    @Output() refreshNeedList = new EventEmitter<void>();

    needCopy: any = {}

    constructor(
        private cupboardService: CupboardService,
        private toastService: ToastsService,
        protected modalService: ModalService,
        private router: Router
    ) {}

    ngOnChanges() {
        this.needCopy = {...this.need}
    }

    submit(form: any) {
        const need: Need = {
            name: form.name,
            image: form.image,
            location: form.location,
            id: this.needCopy.id, //system will control this
            maxGoal: form.maxGoal,
            type: GoalType[form.type as keyof typeof GoalType],
            urgent: form.urgent,
            filterAttributes: [],
            current: 0,
            description: form.description
        };

        if (this.mode == "Edit") {
            this.updateNeed(need)
        } else if (this.mode === 'Create') {
            this.createNeed(need)
        }
    }

    updateNeed(need: Need) {
        this.cupboardService.updateNeed(need.id, need)
            .pipe(catchError((ex, _) => {
                if (ex.status == 500) {
                    this.toastService.sendToast(ToastType.ERROR, 'Fields cannot be blank');
                } else if (ex.status == 400) {
                    this.toastService.sendToast(ToastType.ERROR, ex.error);
                } else {
                    this.toastService.sendToast(ToastType.ERROR, "Error on creating need");
                }
                return of()
            }))
            .subscribe(
                (result) => {
                    if (result) {
                        let action = {label: 'View Need', onAction: () => this.router.navigate([`/need/${need.id}`])}
                        this.toastService.sendToast(ToastType.INFO, "Need updated successfully", action)
                        this.modalService.hideModal()
                        console.log("need updated successfully");
                        this.refreshNeedList.emit();
                    } else {
                        console.log("need update failed");
                    }
                }
            );
    }

    createNeed(need: Need) {
        this.cupboardService.createNeed(need)
            .pipe(catchError((ex, _) => {
                if (ex.status == 500) {
                    this.toastService.sendToast(ToastType.ERROR, "Fields cannot be blank");
                } else if (ex.status == 400) {
                    this.toastService.sendToast(ToastType.ERROR, ex.error);
                } else {
                    this.toastService.sendToast(ToastType.ERROR, "Error on creating need");
                }
                return of()
            }))
            .subscribe(
                (result) => {
                    if (result) {
                        let action = {label: 'View Need', onAction: () => this.router.navigate([`/need/${result.id}`])}
                        this.toastService.sendToast(ToastType.INFO, "Need created successfully", action)
                        this.modalService.hideModal()
                        console.log("need created successfully");
                        this.refreshNeedList.emit();
                    } else {
                        console.log("need creation failed");
                    }
                }

            );
    }
}