/**
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at

 * http://www.apache.org/licenses/LICENSE-2.0

 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import { formatPrecision } from '../../common/utils/format';

import { type OverlayTemplate } from '../../component/Overlay';

import { isFunction, isNumber, isValid } from '../../common/utils/typeChecks';

import { LineType } from '../../common/Styles';

const simpleTag: OverlayTemplate = {
  name: 'simpleTag',
  totalStep: 2,
  styles: {
    line: { style: LineType.Dashed },
  },
  createPointFigures: ({ bounding, coordinates }) => {
    return {
      type: 'line',
      attrs: {
        coordinates: [
          { x: 0, y: coordinates[0].y },
          { x: bounding.width, y: coordinates[0].y },
        ],
      },
      ignoreEvent: true,
    };
  },
  createYAxisFigures: ({
    overlay,
    coordinates,
    bounding,
    yAxis,
    precision,
  }) => {
    const isFromZero = yAxis?.isFromZero() ?? false;
    let textAlign: CanvasTextAlign;
    let x: number;
    if (isFromZero) {
      textAlign = 'left';
      x = 0;
    } else {
      textAlign = 'right';
      x = bounding.width;
    }
    let text;
    if (isValid(overlay.extendData)) {
      if (!isFunction(overlay.extendData)) {
        text = overlay.extendData ?? '';
      } else {
        text = overlay.extendData(overlay);
      }
    }
    if (!isValid(text) && isNumber(overlay.points[0].value)) {
      text = formatPrecision(overlay.points[0].value, precision.price);
    }
    return {
      type: 'text',
      attrs: {
        x,
        y: coordinates[0].y,
        text: text ?? '',
        align: textAlign,
        baseline: 'middle',
      },
    };
  },
};

export default simpleTag;