# Use an official Python runtime as a parent image
FROM python:3.9-slim

# Set the working directory in the container
WORKDIR /app

# Install system dependencies required for TA-Lib and other packages
RUN apt-get update && apt-get install -y \
    build-essential \
    wget \
    unzip \
    && rm -rf /var/lib/apt/lists/*

# Download and install TA-Lib
RUN wget http://prdownloads.sourceforge.net/ta-lib/ta-lib-0.4.0-src.tar.gz && \
    tar -xzf ta-lib-0.4.0-src.tar.gz && \
    cd ta-lib/ && \
    ./configure --prefix=/usr && \
    make && \
    make install && \
    cd .. && \
    rm -rf ta-lib ta-lib-0.4.0-src.tar.gz

# Copy the requirements file into the container
COPY requirements.txt .

# Install any needed packages specified in requirements.txt
RUN pip install --no-cache-dir -r requirements.txt

# Copy the rest of the application's code into the container
COPY . .

# Make port 8000 available to the world outside this container
EXPOSE 8000

# Define environment variable
ENV NAME World

# Run app.py when the container launches
CMD ["gunicorn", "--bind", "0.0.0.0:8000", "app:app"]