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import { TreeTraverser } from './lib/bytes/TreeTraverser.ts';import type { IOTBMVersionInfo } from './types.d.ts';
import type { RootNode } from './lib/RootNode.ts';
export class OTBMReader {    private _treeTraverser : TreeTraverser | undefined;
    public setOTBM(bytes : Uint8Array){        this._treeTraverser = new TreeTraverser(bytes);    }
    public getVersionInfo() : IOTBMVersionInfo {        if (this._treeTraverser !== undefined){            const oldPos = this._treeTraverser.position;            const version = this._treeTraverser.escapeReadUint32LE(6);            this._treeTraverser.escapeReadUint16LE();            this._treeTraverser.escapeReadUint16LE();            const itemMinorVersion = this._treeTraverser.escapeReadUint32LE();            const itemMajorVersion = this._treeTraverser.escapeReadUint32LE();            this._treeTraverser.position = oldPos;            return { version, itemMajorVersion, itemMinorVersion };        }        else {            throw NoOTBMBufferError();        }    }
    public getMapWidth() : number {        if (this._treeTraverser !== undefined){            const oldPos = this._treeTraverser.position;            const width = this._treeTraverser.escapeReadUint16LE(10);            this._treeTraverser.position = oldPos;            return width;        }else{            throw NoOTBMBufferError();        }    }
    public getMapHeight() : number {        if (this._treeTraverser !== undefined){            const oldPos = this._treeTraverser.position;            const height = this._treeTraverser.escapeReadUint16LE(12);            this._treeTraverser.position = oldPos;            return height;        }else{            throw NoOTBMBufferError();        }    }
    public getNodeTree() : RootNode {        if (this._treeTraverser !== undefined){            try {                do {                    this._treeTraverser.readNextNode();                }                while(this._treeTraverser.position < this._treeTraverser.byteLength)            }catch(err){                throw err;            }
            if (this._treeTraverser.stack.length > 0){                this._treeTraverser.position = 0;                return this._treeTraverser.stack[0] as RootNode;            }else{                this._treeTraverser.position = 0;                throw TreeParseError();            }        }else{            throw NoOTBMBufferError();        }    }}
function NoOTBMBufferError() : Error {    const err : any = new Error('You need to set the OTBM buffer with the setOTBM method first.');    err.code = 'NO_OTBM_BUF';    return err;}
function TreeParseError() : Error {    const err : any = new Error('Failed to parse & create the tree. At end of parse no RootNode in stack.');    err.code = 'NO_ROOT_PARSE_ERR';    return err;}