import { get, isBoolean } from '@antv/util';
import { DIRECTION } from '../constant';
import { getName } from './scale';
import { vec2 } from '@antv/matrix-util';
/**
 * @ignore
 * get axis relative region ( 0 ~ 1) by direction when coordinate is rect
 * @param direction
 * @returns axis coordinate region
 */
export function getLineAxisRelativeRegion(direction) {
    var start;
    var end;
    switch (direction) {
        case DIRECTION.TOP:
            start = { x: 0, y: 1 };
            end = { x: 1, y: 1 };
            break;
        case DIRECTION.RIGHT:
            start = { x: 1, y: 0 };
            end = { x: 1, y: 1 };
            break;
        case DIRECTION.BOTTOM:
            start = { x: 0, y: 0 };
            end = { x: 1, y: 0 };
            break;
        case DIRECTION.LEFT:
            start = { x: 0, y: 0 };
            end = { x: 0, y: 1 };
            break;
        default:
            start = end = { x: 0, y: 0 };
    }
    return { start: start, end: end };
}
/**
 * @ignore
 * get axis relative region ( 0 ~ 1) by direction when coordinate is polar
 * @param coordinate
 * @returns axis coordinate region
 */
export function getCircleAxisRelativeRegion(coordinate) {
    var start;
    var end;
    if (coordinate.isTransposed) {
        start = {
            x: 0,
            y: 0,
        };
        end = {
            x: 1,
            y: 0,
        };
    }
    else {
        start = {
            x: 0,
            y: 0,
        };
        end = {
            x: 0,
            y: 1,
        };
    }
    return { start: start, end: end };
}
/**
 * @ignore
 * get the axis region from coordinate
 * @param coordinate
 * @param direction
 * @returns the axis region (start point, end point)
 */
export function getAxisRegion(coordinate, direction) {
    var region = { start: { x: 0, y: 0 }, end: { x: 0, y: 0 } };
    if (coordinate.isRect) {
        region = getLineAxisRelativeRegion(direction);
    }
    else if (coordinate.isPolar) {
        region = getCircleAxisRelativeRegion(coordinate);
    }
    var start = region.start, end = region.end;
    return {
        start: coordinate.convert(start),
        end: coordinate.convert(end),
    };
}
/**
 * @ignore
 * get axis factor
 * @param coordinate
 * @param direction
 * @returns factor
 */
export function getAxisFactor(coordinate, direction) {
    // rect coordinate, by direction
    if (coordinate.isRect) {
        return coordinate.isTransposed
            ? [DIRECTION.RIGHT, DIRECTION.BOTTOM].includes(direction)
                ? 1
                : -1
            : [DIRECTION.BOTTOM, DIRECTION.RIGHT].includes(direction)
                ? -1
                : 1;
    }
    // polar y axis, by angle
    if (coordinate.isPolar) {
        var startAngle = coordinate.x.start;
        return startAngle < 0 ? -1 : 1;
    }
    return 1;
}
/**
 * @ignore
 * whether the axis isVertical
 * @param region
 * @returns isVertical
 */
export function isVertical(region) {
    var start = region.start, end = region.end;
    return start.x === end.x;
}
/**
 * @ignore
 * get factor by region (real position)
 * @param region
 * @param center
 * @returns factor
 */
export function getAxisFactorByRegion(region, center) {
    var start = region.start, end = region.end;
    var isAxisVertical = isVertical(region);
    // 垂直
    if (isAxisVertical) {
        // 左方,从下到上、右方,从上到下
        if ((start.y - end.y) * (center.x - start.x) > 0) {
            return 1;
        }
        else {
            return -1;
        }
    }
    else {
        // 下方,从左到右、上方,从右到做
        if ((end.x - start.x) * (start.y - center.y) > 0) {
            return -1;
        }
        else {
            return 1;
        }
    }
}
/**
 * @ignore
 * get the axis cfg from theme
 * @param theme view theme object
 * @param direction axis direction
 * @returns axis theme cfg
 */
export function getAxisThemeCfg(theme, direction) {
    return get(theme, ['components', 'axis', direction], {});
}
/**
 * @ignore
 * get circle axis center and radius
 * @param coordinate
 */
export function getCircleAxisCenterRadius(coordinate) {
    // @ts-ignore
    var x = coordinate.x, y = coordinate.y, center = coordinate.circleCenter;
    var isReflectY = y.start > y.end;
    var start = coordinate.isTransposed
        ? coordinate.convert({
            x: isReflectY ? 0 : 1,
            y: 0,
        })
        : coordinate.convert({
            x: 0,
            y: isReflectY ? 0 : 1,
        });
    var startVector = [start.x - center.x, start.y - center.y];
    var normalVector = [1, 0];
    var startAngle = start.y > center.y ? vec2.angle(startVector, normalVector) : vec2.angle(startVector, normalVector) * -1;
    var endAngle = startAngle + (x.end - x.start);
    var radius = Math.sqrt(Math.pow((start.x - center.x), 2) + Math.pow((start.y - center.y), 2));
    return {
        center: center,
        radius: radius,
        startAngle: startAngle,
        endAngle: endAngle,
    };
}
/**
 * @ignore
 * 从配置中获取单个字段的 axis 配置
 * @param axes
 * @param field
 * @returns the axis option of field
 */
export function getAxisOption(axes, field) {
    if (isBoolean(axes)) {
        return axes === false ? false : {};
    }
    return get(axes, [field]);
}
/**
 * @ignore
 * 如果配置了 position，则使用配置
 * @param axisOption
 * @param def
 */
export function getAxisDirection(axisOption, def) {
    return get(axisOption, 'position', def);
}
/**
 * 获取 axis 的 title 文本
 * @param scale
 * @param axisOption
 */
export function getAxisTitleText(scale, axisOption) {
    return get(axisOption, ['title', 'text'], getName(scale));
}
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