var parseCode = require("./parseCode");
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var extend = require('./extend');
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var projections = require('./projections');
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var deriveConstants = require('./deriveConstants');
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function Projection(srsCode,callback) {
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if (!(this instanceof Projection)) {
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return new Projection(srsCode);
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}
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callback = callback || function(error){
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if(error){
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throw error;
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}
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};
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var json = parseCode(srsCode);
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if(typeof json !== 'object'){
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callback(srsCode);
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return;
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}
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var modifiedJSON = deriveConstants(json);
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var ourProj = Projection.projections.get(modifiedJSON.projName);
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if(ourProj){
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extend(this, modifiedJSON);
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extend(this, ourProj);
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this.init();
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callback(null, this);
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}else{
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callback(srsCode);
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}
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}
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Projection.projections = projections;
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Projection.projections.start();
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module.exports = Projection;
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