MT5 Expert Advisor (EA) Technical Specification

Project Overview:
I need an MT5 Expert Advisor (EA) based on a TradingView Delta-RSI indicator.
The project includes two stages:
1. Converting the TradingView indicator (Pine Script) to MT5 (MQL5).
2. Developing an EA that trades automatically using the indicator's BUY and SELL signals.

Broker Compatibility:
- The EA must work correctly on the Deriv broker through MT5.
- It should be fully compatible with Deriv synthetic indices and other instruments available on Deriv MT5.

Indicator Source Code:
- The indicator is originally from TradingView (Pine Script).
- I will provide the original TradingView indicator source code to the developer.
- The EA must use BUY and SELL signals generated by the converted MT5 indicator.

Signal Timeframe:
- Input: Signal Timeframe
- Options: M1, M5, M15, H1, H4
- If M5 is selected, only M5 signals must be used.

Trade Mode:
- BUY ONLY
- SELL ONLY
- BUY & SELL

Trading Rules:
- BUY signal -> immediately open BUY.
- SELL signal -> immediately open SELL.
- Only one open position at a time.
- Opposite signal closes current position and opens a new one.
- One signal = one order.
- No duplicate orders on the same candle.

Inputs:
- Lot Size
- Stop Loss (SL)
- Take Profit (TP)
- Magic Number
- Slippage
- Maximum Spread Filter (ON/OFF)

TP and SL Behavior:
- After TP or SL, wait for the next signal.
- Do not open trades automatically without a new signal.
- Open trades only on NEW BUY or SELL signals.

Additional Requirements:
- Continue working after terminal restart.
- Recognize existing positions after restart.
- Fully automatic with AutoTrading enabled.

Workflow:
Indicator Signal -> Open Trade -> TP or SL -> Wait for Next Signal -> Open New Trade