import { logger } from './jsmind.common.js'
export class Node {
    constructor(sId, iIndex, sTopic, oData, bIsRoot, oParent, eDirection, bExpanded) {
        if (!sId) {
            logger.error('invalid node id')
            return
        }
        if (typeof iIndex != 'number') {
            logger.error('invalid node index')
            return
        }
        if (typeof bExpanded === 'undefined') {
            bExpanded = true
        }
        this.id = sId
        this.index = iIndex
        this.topic = sTopic
        this.data = oData || {}
        this.isroot = bIsRoot
        this.parent = oParent
        this.direction = eDirection
        this.expanded = !!bExpanded
        this.children = []
        this._data = {}
    }

    get_location() {
        var vd = this._data.view
        return {
            x: vd.abs_x,
            y: vd.abs_y,
        }
    }
    get_size() {
        var vd = this._data.view
        return {
            w: vd.width,
            h: vd.height,
        }
    }

    static compare(node1, node2) {
        // '-1' is always the latest
        var r = 0
        var i1 = node1.index
        var i2 = node2.index
        if (i1 >= 0 && i2 >= 0) {
            r = i1 - i2
        } else if (i1 == -1 && i2 == -1) {
            r = 0
        } else if (i1 == -1) {
            r = 1
        } else if (i2 == -1) {
            r = -1
        } else {
            r = 0
        }
        return r
    }
    static inherited(parent_node, node) {
        if (!!parent_node && !!node) {
            if (parent_node.id === node.id) {
                return true
            }
            if (parent_node.isroot) {
                return true
            }
            var pid = parent_node.id
            var p = node
            while (!p.isroot) {
                p = p.parent
                if (p.id === pid) {
                    return true
                }
            }
        }
        return false
    }
    static is_node(n) {
        return !!n && n instanceof Node
    }
}