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Require("plugin/storage.js");

function Module_CreateAliasGroupAutoComplete(args)
{
    // args[0] == command name
    var arg_index = args.length - 2;
    
    if (arg_index == 0)
    {
        return Module_GetAliasNames();
    }
    else if (arg_index == 1)
    {
        return [ "Dimmer230", "irTransmit" ];
    }
    else if (arg_index >= 2)
    {
        return Module_GetAliasNames([ args[2] ])
    }
    
    return [];
}

function Module_CreateAliasGroup(alias_group_name, module_type, alias_name1, alias_name2)
{
    if (arguments.length < 3)
    {
        throw("Not enought parameters given");
    }
    
    alias_group_name = arguments[0];
    module_type = arguments[1];
    var aliases = [];
    
    for (var n = 2; n < arguments.length; n++)
    {
        if (arguments[n].length > 0)
        {
            var aliases_data = Module_ResolveAlias(arguments[n]);
            aliases.push(arguments[n]);
        }
    }
    
    if (aliases.length == 0)
    {
        throw("No valid aliases were found, aborting creation of group alias");
    }
    
    var alias_data = {
        "group"       : true,
        "name"        : alias_group_name,
        "module_name" : module_type,
        "aliases"     : aliases
    };
    
    return Storage_SetParameter("alias", alias_group_name, JSON.stringify(alias_data));
}
Console_RegisterCommand(Module_CreateAliasGroup, Module_CreateAliasGroupAutoComplete);

function Module_ResolveAlias(alias_name, filter_module_names)
{
    var aliases_data = {};
    var alias_data_string = Storage_GetParameter("alias", alias_name);
    
    if (alias_data_string)
    {
        var alias_data = eval("(" + alias_data_string + ")");
        
        if (alias_data["group"])
        {
            for (var n in alias_data["aliases"])
            {
                var aliases_data_sub = Module_ResolveAlias(alias_data["aliases"][n], filter_module_names);
                
                for (var name in aliases_data_sub)
                {
                    aliases_data[name] = aliases_data_sub[name];
                }
            }
        }
        else
        {
            if (in_array(filter_module_names, alias_data["module_name"]))
            {
                aliases_data[alias_name] = alias_data;
            }
        }
    }
    
    return aliases_data;
}

function Module_LookupAliases(match_filter)
{
    var aliases_data_filtered = {};
    var aliases_data = Storage_GetParameters("alias");
    
    for (var name in aliases_data)
    {
        var alias_data = eval("(" + aliases_data[name] + ")");
        
        var valid = true;
        
        for (var key in match_filter)
        {
            if (alias_data[key] != match_filter[key])
            {
                valid = false;
                break;
            }
        }
        
        if (valid)
        {
            aliases_data_filtered[name] = alias_data;
        }
    }
    
    return aliases_data_filtered;
}

function Module_GetAliasNames(filter_module_names)
{
    var aliases_name_filtered = [];
    var aliases_data = Storage_GetParameters("alias");
    
    for (var name in aliases_data)
    {
        var alias_data = eval("(" + aliases_data[name] + ")");
        
        if (!filter_module_names || in_array(filter_module_names, alias_data["module_name"]))
        {
            aliases_name_filtered.push(name)
        }
    }
    
    return aliases_name_filtered;
}

function Module_GetAvailableIds(filter_module_names)
{
    var result_list = [];
    var available_modules = ModuleExport_GetAvailableModules();
    
    for (var n in available_modules)
    {
        var id_parts = available_modules[n].split(":", 2);
        
        if (in_array(filter_module_names, id_parts[0]))
        {
            result_list.push(id_parts[1]);
        }
    }
    
    return result_list;
}

function Module_SendMessage(module_name, module_id, command, variables)
{
    var args = [];
    
    args.push(module_name + ":" + module_id);
    args.push(command);
    
    var length = 0;
    for (var key in variables)
    {
        length++;
    }
    
    args.push(length);
    
    for (var key in variables)
    {
        args.push(key);
        args.push(variables[key]);
    }
    
    return ModuleExport_SendMessage.apply(null, Array.prototype.slice.call(args, 0));
}

var Module_MessageAliasLookupFunctions = {};
var Module_OnChangeFunctions = {};
var Module_OnMessageFunctions = {};

function Module_RegisterMessageAliasLookup(module_name, callback)
{
    Module_MessageAliasLookupFunctions[module_name] = callback;
}

function Module_RegisterToOnChange(alias_name, callback)
{
    if (!Module_OnChangeFunctions[alias_name])
    {
        Module_OnChangeFunctions[alias_name] = [];
    }
    
    Module_OnChangeFunctions[alias_name].push(callback);
}

function Module_RegisterToOnMessage(alias_name, callback)
{
    if (!Module_OnMessageFunctions[alias_name])
    {
        Module_OnMessageFunctions[alias_name] = [];
    }
    
    Module_OnMessageFunctions[alias_name].push(callback);
}

function Module_OnMessage(full_id, command, variables)
{
    var id_parts = full_id.split(":", 2);
    var aliases_data = {};
    
    if (Module_MessageAliasLookupFunctions[id_parts[0]])
    {
        aliases_data = Module_MessageAliasLookupFunctions[id_parts[0]](id_parts[1], command, variables);
    }
    
    for (var alias_name in alias_data)
    {
        if (Module_OnMessageFunctions[alias_name])
        {
            for (var n in Module_OnMessageFunctions[alias_name])
            {
                Module_OnMessageFunctions[alias_name][n](alias_name, command, variables);
            }
        }
    }
}

function Module_OnChange(full_id, available)
{
    var id_parts = full_id.split(":", 2);
    
    var aliases_data = Module_LookupAliases({
        "module_name" : id_parts[0],
        "module_id"   : id_parts[1],
    });
    
    for (var alias_name in alias_data)
    {
        if (Module_OnChangeFunctions[alias_name])
        {
            for (var n in Module_OnChangeFunctions[alias_name])
            {
                Module_OnChangeFunctions[alias_name][n](alias_name, available);
            }
        }
    }
}