FROM python:3.14-alpine

# Install TA-Lib C library and build dependencies
RUN apk add --no-cache --virtual .build-deps \
    gcc \
    g++ \
    make \
    musl-dev \
    wget \
    && apk add --no-cache \
    ta-lib \
    && rm -rf /var/cache/apk/*

# Set working directory
WORKDIR /app

# Copy requirements first for better caching
COPY backend/requirements.txt /app/requirements.txt

# Install Python dependencies
RUN pip install --no-cache-dir -r requirements.txt

# Clean up build dependencies
RUN apk del .build-deps

# Copy application code
COPY backend/src /app/src