var SteamCommunity = require('../index.js');
var Helpers = require('../components/helpers.js');
var SteamID = require('steamid');
var xml2js = require('xml2js');

SteamCommunity.prototype.getSteamUser = function(id, callback) {
	if(typeof id !== 'string' && !Helpers.isSteamID(id)) {
		throw new Error("id parameter should be a user URL string or a SteamID object");
	}
	
	if(typeof id === 'object' && (id.universe != SteamID.Universe.PUBLIC || id.type != SteamID.Type.INDIVIDUAL)) {
		throw new Error("SteamID must stand for an individual account in the public universe");
	}
	
	var self = this;
	this.httpRequest("http://steamcommunity.com/" + (typeof id === 'string' ? "id/" + id : "profiles/" + id.toString()) + "/?xml=1", function(err, response, body) {
		if (err) {
			callback(err);
			return;
		}
		
		xml2js.parseString(body, function(err, result) {
			if(err || (!result.response && !result.profile)) {
				callback(err || new Error("No valid response"));
				return;
			}
			
			if(result.response && result.response.error && result.response.error.length) {
				callback(new Error(result.response.error[0]));
				return;
			}
			
			// Try and find custom URL from redirect
			var customurl = null;
			if(response.request.redirects && response.request.redirects.length) {
				var match = response.request.redirects[0].redirectUri.match(/https?:\/\/steamcommunity\.com\/id\/([^/])+\/\?xml=1/);
				if(match) {
					customurl = match[1];
				}
			}

			if(!result.profile.steamID64) {
				callback(new Error("No valid response"));
				return;
			}
			
			callback(null, new CSteamUser(self, result.profile, customurl));
		});
	}, "steamcommunity");
};

function CSteamUser(community, userData, customurl) {
	this._community = community;
	
	this.steamID = new SteamID(userData.steamID64[0]);
	this.name = processItem('steamID');
	this.onlineState = processItem('onlineState');
	this.stateMessage = processItem('stateMessage');
	this.privacyState = processItem('privacyState', 'uncreated');
	this.visibilityState = processItem('visibilityState');
	this.avatarHash = processItem('avatarIcon', '').match(/([0-9a-f]+)\.[a-z]+$/);
	if(this.avatarHash) {
		this.avatarHash = this.avatarHash[1];
	}

	this.vacBanned = processItem('vacBanned', false) == 1;
	this.tradeBanState = processItem('tradeBanState', 'None');
	this.isLimitedAccount = processItem('isLimitedAccount') == 1;
	this.customURL = processItem('customURL', customurl);
	
	if(this.visibilityState == 3) {
		this.memberSince = new Date(processItem('memberSince', '0').replace(/(\d{1,2})(st|nd|th)/, "$1"));
		this.location = processItem('location');
		this.realName = processItem('realname');
		this.summary = processItem('summary');
	} else {
		this.memberSince = null;
		this.location = null;
		this.realName = null;
		this.summary = null;
	}
	
	// Maybe handle mostPlayedGames?
	
	this.groups = null;
	this.primaryGroup = null;
	
	var self = this;
	if(userData.groups && userData.groups[0] && userData.groups[0].group) {
		this.groups = userData.groups[0].group.map(function(group) {
			if(group['$'] && group['$'].isPrimary === "1") {
				self.primaryGroup = new SteamID(group.groupID64[0]);
			}
			
			return new SteamID(group.groupID64[0]);
		});
	}

	function processItem(name, defaultVal) {
		if(!userData[name]) {
			return defaultVal;
		}

		return userData[name][0];
	}
}

CSteamUser.getAvatarURL = function(hash, size, protocol) {
	size = size || '';
	protocol = protocol || 'http://';

	hash = hash || "72f78b4c8cc1f62323f8a33f6d53e27db57c2252"; // The default "?" avatar
	
	var url = protocol + "steamcdn-a.akamaihd.net/steamcommunity/public/images/avatars/" + hash.substring(0, 2) + "/" + hash;
	if(size == 'full' || size == 'medium') {
		return url + "_" + size + ".jpg";
	} else {
		return url + ".jpg";
	}
};

CSteamUser.prototype.getAvatarURL = function(size, protocol) {
	return CSteamUser.getAvatarURL(this.avatarHash, size, protocol);
};

CSteamUser.prototype.addFriend = function(callback) {
	this._community.addFriend(this.steamID, callback);
};

CSteamUser.prototype.acceptFriendRequest = function(callback) {
	this._community.acceptFriendRequest(this.steamID, callback);
};

CSteamUser.prototype.removeFriend = function(callback) {
	this._community.removeFriend(this.steamID, callback);

};

CSteamUser.prototype.blockCommunication = function(callback) {
	this._community.blockCommunication(this.steamID, callback);
};

CSteamUser.prototype.unblockCommunication = function(callback) {
	this._community.unblockCommunication(this.steamID, callback);
};

CSteamUser.prototype.comment = function(message, callback) {
	this._community.postUserComment(this.steamID, message, callback);
};

CSteamUser.prototype.inviteToGroup = function(groupID, callback) {
	this._community.inviteUserToGroup(this.steamID, groupID, callback);
};

CSteamUser.prototype.getAliases = function(callback) {
	this._community.getUserAliases(this.steamID, callback);
};

CSteamUser.prototype.getInventoryContexts = function(callback) {
	this._community.getUserInventoryContexts(this.steamID, callback);
};

/**
 * Get the contents of a user's inventory context.
 * @deprecated Use CSteamUser#getInventoryContents instead
 * @param {int} appID - The Steam application ID of the game for which you want an inventory
 * @param {int} contextID - The ID of the "context" within the game you want to retrieve
 * @param {boolean} tradableOnly - true to get only tradable items and currencies
 * @param callback
 */
CSteamUser.prototype.getInventory = function(appID, contextID, tradableOnly, callback) {
	this._community.getUserInventory(this.steamID, appID, contextID, tradableOnly, callback);
};

/**
 * Get the contents of a user's inventory context.
 * @param {int} appID - The Steam application ID of the game for which you want an inventory
 * @param {int} contextID - The ID of the "context" within the game you want to retrieve
 * @param {boolean} tradableOnly - true to get only tradable items and currencies
 * @param callback
 */
CSteamUser.prototype.getInventoryContents = function(appID, contextID, tradableOnly, callback) {
	this._community.getUserInventoryContents(this.steamID, appID, contextID, tradableOnly, callback);
};