"use strict";

const { Model } = require("objection");

module.exports = function ({ db }) {
	return class Item extends Model {
		static tableName = "items";
	
		static get relationMappings() {
			return {
				aliases: {
					relation: Model.HasManyRelation,
					modelClass: db.Alias,
					join: { from: "items.id", to: "aliases.itemId" }
				},
				tags: {
					relation: Model.HasManyRelation,
					modelClass: db.Tag,
					join: { from: "items.id", to: "tags.itemId" }	
				},
				taskResults: {
					relation: Model.HasManyRelation,
					modelClass: db.TaskResult,
					join: { from: "items.id", to: "taskResults.itemId" }
				},
				tasksInProgress: {
					relation: Model.HasManyRelation,
					modelClass: db.TaskInProgress,
					join: { from: "items.id", to: "tasksInProgress.itemId" }
				},
				failedTasks: {
					// Not actually a many-to-many, but that's what objection calls a HasManyThrough...
					// https://github.com/Vincit/objection.js/issues/1148
					relation: Model.ManyToManyRelation,
					modelClass: db.Failure,
					join: {
						from: "items.id",
						through: { from: "task_results.itemId", to: "task_results.id" },
						to: "failures.taskResultId"
					}
				}
			};
		};
	}
};