Old strategy into an automated ea mql4 and 5

okay i need an mql4 and5 expert advisor so how the strategy works is as follows it must firstly check for open orders (buy and sell) only if none, it must get the current market price lets say its eurusd is 1.04903 . then it must calculate upper buy value which wil take the current market price plus 250 points equals 1.05153 which must be stored in a library. take profit will be plus 500 points so 1.05653 stoploss will be minus 1000 points so 1.04153 . then for the lower sell limit 1.04903 minus 250 points which will be 1.04653 , take profit minus 500 points 1.04153 stoploss plus 1000 points 1.05653 . then its simple if the market crosses above lets say 1.05153 can open one buy order only at 0.01 lots then the market goes down and crosses below 1.04653 it will open a sell order at given value previous lotsize time multiplier so 0.01 * 1.33 equal 0.0133. then if the market goes up and crosses above 1.05153 it will open one buy order at lotsize previous lotsize 0.013* 1.3 equals 0.0169 so 0.02 lots. then if it hits the take profit of lets say 1.05653 all orders must be closed out please make sure the program closes all orders sometimes spread cuases lets say just buy otders tp to be hit then the market returns. secondly make sure to give apropriate input values like. take profit value +-500 points. stop loss value +-1000 points. upper limit value plus 250 points. lower limit value minus 250 points. lot multiplier 1.3. thirdly please keep acurate track of previously calculated lotsize. fourthly upper and lower calculated values must be recalulated every 2 days if only if no buy and sell orders are open if any buy and sell orders are open it must not recalculate uppper and lower buy and sell values. fifthly the ea must work in strategy tester. sixthly make sure to code in fault finding code to track what the ea is doing.