74 lines
1.6 KiB
JavaScript
74 lines
1.6 KiB
JavaScript
module.exports = class {
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constructor(titles) {
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this._rows = [titles];
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this._widths = [];
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for (let i = 0; i < this._rows.length; i++) {
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for (let _i = 0; _i < this._rows[i].length; _i++) {
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this._widths.push(this._rows[i][_i].length + 2);
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}
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}
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}
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_updateWidth(row) {
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for (const index in row) {
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const entry = row[index];
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const width = entry.length + 2;
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if (width > this._widths[index]) {
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this._widths[index] = width;
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}
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}
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}
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addRow(row) {
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this._rows.push(row);
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this._updateWidth(row);
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}
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render() {
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function drawRow(ctx, row, index) {
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const columns = [];
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for (let i = 0; i < row.length; i++) {
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columns.push(row[i].toString().padEnd(ctx._widths[i]));
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}
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return columns;
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}
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const toDraw = [];
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const queue = this._rows.splice(1);
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for (const row in queue) {
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const _row = drawRow(this, queue[row]);
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toDraw.push(_row.join("|"));
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}
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this._updateWidth(this._rows[0]);
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const trows = [];
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for (const index in this._rows[0]) {
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const field = this._rows[0][index];
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let out = field;
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const width = this._widths[index];
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out = out.padEnd(width);
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trows.push(out);
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}
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const title_row = trows.join("|");
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let seperator_row = "";
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for (const index in this._widths) {
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seperator_row += "-".repeat(this._widths[index]);
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if (index != this._widths.length - 1) {
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seperator_row += "+";
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}
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}
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const drawn = [title_row, seperator_row];
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for (const index in toDraw) {
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drawn.push(toDraw[index]);
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}
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return drawn.join("\n");
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}
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};
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