# ==============================================================================
# /etc/profile.d/pyenv.sh
# Global Pyenv Configuration for Multi-User Enterprise Environment
# ==============================================================================

# Add the globally compiled Pyenv core binaries to the system PATH
export PATH="/opt/pyenv/bin:$PATH"

# Isolate the Pyenv execution root to the current user's HOME directory
# This ensures that 'pyenv rehash' and shim generation have native write permissions
export PYENV_ROOT="$HOME/.pyenv"

# Bootstrap required directory structure inside the user's HOME if missing
if [ ! -d "$PYENV_ROOT/versions" ]; then
    mkdir -p "$PYENV_ROOT/versions" "$PYENV_ROOT/shims"
fi

# Define the hook path required by Pyenv architecture plugins
export PYENV_HOOK_PATH="/opt/pyenv/hooks"

# SELF-HEALING: Detect and forcefully purge broken/orphaned symbolic links
# This prevents shell errors if an administrator uninstalls a global Python version
find "$PYENV_ROOT/versions/" -xtype l -delete 2>/dev/null

# SYNCHRONIZATION: Map globally available Python installations into the user's scope
# Individual symlinks are used so the user's Pyenv can correctly resolve each version
find /opt/pyenv/versions/ -type d -name '[23]*' | \
    while read path; do
        version=$(basename $path);
        mkdir -p "$PYENV_ROOT/versions/$version/envs" 2>/dev/null
        if [ -d "$PYENV_ROOT/versions/$version" ]; then
            ln -snf /opt/pyenv/versions/$version/* \
                "$PYENV_ROOT/versions/$version/" 2>/dev/null;
        fi
    done

# INITIALIZATION: Spawn the Pyenv environment and virtualenv managers
# into the shell session
eval "$(pyenv init -)"
eval "$(pyenv virtualenv-init -)"