local is_run = true

local function is_date(val)
    local status = pcall(function() return type(val) == "table" and os.time(val); end)
    return status
end

local function call_back_processor(action, context)
    if not action then return end
    return function(index)
        action(index, context)
    end
end

local function on_ds_action(index, context)
    local time = is_date(context.ds:T(index)) and os.time(context.ds:T(index)) or nil

    message(tostring(index) .. "\n" .. tostring(context.interval))
    context.ds:Close()

end

local function create_ds(context, action)

    if not context then return end

    local ds, err = _G.CreateDataSource(context.class_code, context.sec_code, context.interval)

    if not ds then
        _G.message(err, 3)
        return
    end

    if ds and action then
        ds:SetUpdateCallback(call_back_processor(action, context))
    end
    context.ds = ds

    return ds
end

function _G.main()

    create_ds({sec_code = 'PRMB', class_code = 'TQBR', interval = _G.INTERVAL_W1}, on_ds_action)       --VLHZ
    create_ds({sec_code = 'PRMB', class_code = 'TQBR', interval = _G.INTERVAL_MN1}, on_ds_action)

    while is_run do
        _G.sleep(100)
    end
end

function _G.OnStop()
    is_run = false
end

local is_run = true

local function is_date(val)
    local status = pcall(function() return type(val) == "table" and os.time(val); end)
    return status
end

local function call_back_processor(action, context)
    if not action then return end
    return function(index)
        action(index, context)
    end
end

local function on_ds_action(index, context)
    local time = is_date(context.ds:T(index)) and os.time(context.ds:T(index)) or nil
    _G.message(string.format('new ds index %d %s %s|%s last close %.5f', index, time and os.date('%d.%m.%Y %H:%M:%S', time), context.sec_code, context.class_code, context.ds:C(index)))
end

local function create_ds(context, action)

    if not context then return end

    local ds, err = _G.CreateDataSource(context.class_code, context.sec_code, context.interval)

    if not ds then
        _G.message(err, 3)
        return
    end

    if ds and action then
        ds:SetUpdateCallback(call_back_processor(action, context))
    end
    context.ds = ds

    return ds
end

function _G.main()

    create_ds({sec_code = 'SBER', class_code = 'TQBR', interval = _G.INTERVAL_W1}, on_ds_action)
    create_ds({sec_code = 'GAZP', class_code = 'TQBR', interval = _G.INTERVAL_MN1}, on_ds_action)

    while is_run do
        _G.sleep(100)
    end
end

function _G.OnStop()
    is_run = false
end

function my_callback_CreateDataSource_HISTORY_1(my_table_data_history_candle_, code_class_, code_paper_, interval_, interval_string_)

message("SIZE_TABLE:" ..tostring(my_table_data_history_candle_:Size() .. "\n" .. ":" ..  code_paper_ ..":" .. interval_string_ ..":" ..my_int_1))

end




function my_callback_CreateDataSource_HISTORY_2(my_table_data_history_candle_, code_class_, code_paper_, interval_, interval_string_)

message("SIZE_TABLE:" ..tostring(my_table_data_history_candle_:Size() .. "\n" .. ":" ..  code_paper_ ..":" .. interval_string_..":" ..my_int_2))

end








-----------------------------------------------------------------------------------------------------------int main:-----------------------------------------------------------------------------------------------------


function main()


local code_class_1= "TQBR"          
local code_paper_1= "GAZP"           
local intervakla_1= INTERVAL_MN1
local intervakla_string_1 = "INTERVAL_MN1"



my_table_1, error_desc_1 = CreateDataSource(code_class_1, code_paper_1, intervakla_1)  


------------------------Проверка на ошибки:-------------------
if error_desc_1 ~= nil then 
message("1:" .. error_desc_1)
end
--------------------------------------------------------------

my_table_1:SetUpdateCallback(function(idx)my_callback_CreateDataSource_HISTORY_1(my_table_1, code_class_1, code_paper_1, intervakla_1, intervakla_string_1) end)








local code_class_2= "TQBR"          
local code_paper_2= "SBER"           
local intervakla_2= INTERVAL_W1
local intervakla_string_2 = "INTERVAL_W1"


my_table_2, error_desc_2 = CreateDataSource(code_class_2, code_paper_2, intervakla_2) 

------------------------Проверка на ошибки:-------------------
if error_desc_2 ~= nil then 
message("2:" .. error_desc_2)
end
--------------------------------------------------------------


my_table_2:SetUpdateCallback(function(idx)my_callback_CreateDataSource_HISTORY_1(my_table_2, code_class_2, code_paper_2, intervakla_2, intervakla_string_2) end)





-------------------------
while not stopped do 
sleep(1)
end 
-------------------------



end -- end main()