"use strict";
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var constants = require("./constants");
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var formatUrl = require("./format");
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var getOptions = require("./options");
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var objUtils = require("./util/object");
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var parseUrl = require("./parse");
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var relateUrl = require("./relate");
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function RelateUrl(from, options)
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{
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this.options = getOptions(options,
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{
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defaultPorts: {ftp:21, http:80, https:443},
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directoryIndexes: ["index.html"],
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ignore_www: false,
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output: RelateUrl.SHORTEST,
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rejectedSchemes: ["data","javascript","mailto"],
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removeAuth: false,
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removeDirectoryIndexes: true,
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removeEmptyQueries: false,
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removeRootTrailingSlash: true,
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schemeRelative: true,
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site: undefined,
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slashesDenoteHost: true
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});
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this.from = parseUrl.from(from, this.options, null);
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}
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/*
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Usage: instance=new RelateUrl(); instance.relate();
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*/
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RelateUrl.prototype.relate = function(from, to, options)
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{
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// relate(to,options)
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if ( objUtils.isPlainObject(to) )
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{
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options = to;
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to = from;
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from = null;
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}
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// relate(to)
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else if (!to)
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{
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to = from;
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from = null;
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}
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options = getOptions(options, this.options);
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from = from || options.site;
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from = parseUrl.from(from, options, this.from);
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if (!from || !from.href)
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{
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throw new Error("from value not defined.");
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}
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else if (from.extra.hrefInfo.minimumPathOnly)
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{
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throw new Error("from value supplied is not absolute: "+from.href);
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}
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to = parseUrl.to(to, options);
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if (to.valid===false) return to.href;
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to = relateUrl(from, to, options);
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to = formatUrl(to, options);
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return to;
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}
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/*
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Usage: RelateUrl.relate();
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*/
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RelateUrl.relate = function(from, to, options)
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{
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return new RelateUrl().relate(from, to, options);
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}
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// Make constants accessible from API
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objUtils.shallowMerge(RelateUrl, constants);
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module.exports = RelateUrl;
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