class BatchCodeTableInitializer {

    #batchCodeTableElement;

    constructor(batchCodeTableElement) {
        this.#batchCodeTableElement = batchCodeTableElement;
    }

    initialize() {
        const clazz = this;
        this.#batchCodeTableElement.DataTable(
            {
                ajax: 'data/batchCodeTables/Global.json',
                initComplete: function (settings) {
                    batchCodeTable = settings.oInstance.api();
                    const columnSearch = new ColumnSearch(batchCodeTable.column(clazz.#getColumnIndex('Company')));
                    columnSearch.columnContentUpdated();
                },
                language:
                {
                    searchPlaceholder: "Enter Batch Code"
                },
                searching: true,
                search:
                {
                    return: true
                },
                processing: true,
                deferRender: true,
                order: [[this.#getColumnIndex('Adverse Reaction Reports'), "desc"]],
                columnDefs:
                    [
                        {
                            searchable: false,
                            targets: [
                                this.#getColumnIndex('Adverse Reaction Reports'),
                                this.#getColumnIndex('Deaths'),
                                this.#getColumnIndex('Disabilities'),
                                this.#getColumnIndex('Life Threatening Illnesses'),
                                this.#getColumnIndex('Severe reports'),
                                this.#getColumnIndex('Lethality')
                            ]
                        },
                        {
                            orderable: false,
                            targets: [this.#getColumnIndex('Batch'), this.#getColumnIndex('Company')]
                        },
                        {
                            render: (data, type, row) => {
                                const numberInPercent = parseFloat(data);
                                return !isNaN(numberInPercent) ? numberInPercent.toFixed(2) + " %" : '';
                            },
                            targets: [this.#getColumnIndex('Severe reports'), this.#getColumnIndex('Lethality')]
                        }
                    ]
            });
    }

    #getColumnIndex(columnName) {
        switch (columnName) {
            case 'Batch':
                return 0;
            case 'Adverse Reaction Reports':
                return 1;
            case 'Deaths':
                return 2;
            case 'Disabilities':
                return 3;
            case 'Life Threatening Illnesses':
                return 4;
            case 'Company':
                return 5;
            case 'Severe reports':
                return 6;
            case 'Lethality':
                return 7;
        }
    }
}