import { Component, Input, Inject } from "ng-forward";
import { NotificationService } from "../../shared/services/notification.service";
import { TaskService } from "../../../lib/ng-noosfero-api/http/task.service";
import { TaskAcceptComponent } from "./task-accept.component";

@Component({
    selector: "task-list",
    templateUrl: "app/task/task-list/task-list.html",
    directives: [TaskAcceptComponent]
})
@Inject(NotificationService, "$scope", "$uibModal", TaskService)
export class TaskListComponent {

    @Input() tasks: noosfero.Task[];

    private taskTemplates = ["AddFriend", "AddMember", "CreateCommunity", "SuggestArticle", "AbuseComplaint"];

    rejectionExplanation: string;
    currentTask: noosfero.Task;
    private modalInstance: any = null;

    constructor(private notificationService: NotificationService, private $scope: ng.IScope, private $uibModal: any, private taskService: TaskService) { }

    getTaskTemplate(task: noosfero.Task) {
        if (this.taskTemplates.indexOf(task.type) >= 0) {
            let templateName = this.getTemplateName(task);
            return `app/task/types/${templateName}/${templateName}.html`;
        } else {
            return 'app/task/types/default.html';
        }
    }

    accept(task: noosfero.Task) {
        this.currentTask = task;
        if (task.accept_details) {
            this.modalInstance = this.$uibModal.open({
                templateUrl: "app/task/task-list/accept.html",
                controller: TaskListComponent,
                controllerAs: 'modal',
                bindToController: true,
                scope: this.$scope
            });
        } else {
            this.callAccept();
        }
    }

    reject(task: noosfero.Task) {
        this.currentTask = task;
        if (task.reject_details) {
            this.modalInstance = this.$uibModal.open({
                templateUrl: "app/task/task-list/reject.html",
                controller: TaskListComponent,
                controllerAs: 'modal',
                bindToController: true,
                scope: this.$scope
            });
        } else {
            this.callReject();
        }
    }

    callAccept() {
        this.taskService.finishTask(this.currentTask).then(() => {
            this.removeTask(this.currentTask);
            this.notificationService.success({ title: "tasks.actions.accept.title", message: "tasks.actions.accept.message" });
        }).finally(() => {
            this.cancel();
        });
    }

    callReject() {
        this.taskService.cancelTask(this.currentTask).then(() => {
            this.removeTask(this.currentTask);
            this.notificationService.success({ title: "tasks.actions.reject.title", message: "tasks.actions.reject.message" });
        }).finally(() => {
            this.cancel();
        });
    }

    cancel() {
        if (this.modalInstance) {
            this.modalInstance.close();
            this.modalInstance = null;
        }
        if (this.currentTask) {
            this.currentTask = null;
        }
    }

    private getTemplateName(task: noosfero.Task) {
        return task.type.replace(/::/, '').replace(/([a-z])([A-Z])/g, '$1-$2').toLowerCase());
    }

    private removeTask(task: noosfero.Task) {
        let index = this.tasks.indexOf(task, 0);
        if (index > -1) {
            this.tasks.splice(index, 1);
        }
    }
}