FROM alpine:latest
LABEL author="Task Venture Capital GmbH <hello@task.vc>"

WORKDIR /workspace

# Important environment variables
ENV NODE_VERSION_LTS="20.18.2" \
    NVM_DIR="/usr/local/nvm" \
    PNPM_HOME="/root/.local/share/pnpm" \
    NVM_NODEJS_ORG_MIRROR="https://unofficial-builds.nodejs.org/download/release"

# Install required packages for NVM and Node.js
RUN apk add --no-cache \
    bash \
    curl \
    git \
    build-base \
    python3 \
    linux-headers \
    ca-certificates \
    wget \
    unzip \
    iputils \
    bind-tools \
    libstdc++

# Install NVM (latest version for better Alpine/musl support)
RUN mkdir -p $NVM_DIR && curl https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.1/install.sh | bash

# Make nvm available globally in all bash shells (interactive + non-interactive)
# IMPORTANT: Create /etc/bash.bashrc with nvm initialization
RUN printf '%s\n%s\n%s\n' \
        'export NVM_DIR="/usr/local/nvm"' \
        '[ -s "$NVM_DIR/nvm.sh" ] && . "$NVM_DIR/nvm.sh"' \
        '[ -s "$NVM_DIR/bash_completion" ] && . "$NVM_DIR/bash_completion"' \
        > /etc/bash.bashrc

# Copy nvm wrapper scripts from support directory
COPY image_support_files/bash-with-nvm /usr/local/bin/bash-with-nvm
COPY image_support_files/docker-entrypoint.sh /usr/local/bin/docker-entrypoint.sh
RUN chmod +x /usr/local/bin/bash-with-nvm /usr/local/bin/docker-entrypoint.sh

# Use wrapper for RUN commands to enable nvm
SHELL ["/usr/local/bin/bash-with-nvm"]

# Enable nvm for runtime bash commands (CI/CD workflows)
ENV BASH_ENV=/etc/bash.bashrc

# Prepare pnpm directory
RUN mkdir -p ${PNPM_HOME}
ENV PATH="$PNPM_HOME:$PATH"

# Install Node.js LTS via NVM and pnpm
# Use musl-specific builds from unofficial-builds for Alpine compatibility
RUN nvm install $NODE_VERSION_LTS \
    && nvm alias default $NODE_VERSION_LTS \
    && nvm use default \
    && npm install -g pnpm \
    && pnpm -v \
    && pnpm config set unsafe-perm true

ENV NODE_PATH=$NVM_DIR/v$NODE_VERSION_LTS/lib/node_modules
ENV PATH=$NVM_DIR/versions/node/v$NODE_VERSION_LTS/bin:$PATH

# Set entrypoint to make nvm available in all runtime contexts
ENTRYPOINT ["/usr/local/bin/docker-entrypoint.sh"]
CMD ["bash"]