#!/bin/bash

set -euo pipefail

# Install pyenv (Python Version Manager) if it is not already installed
if command -v pyenv &> /dev/null; then
    echo -e "pyenv is already installed\n"
else
    echo -e "Installing pyenv (Python Version Manager)\n"
    # Using the official pyenv installer (https://github.com/pyenv/pyenv-installer)
    curl -fsSL https://pyenv.run | bash

    # Load pyenv for the remainder of this script
    export PYENV_ROOT="$HOME/.pyenv"
    [[ -d $PYENV_ROOT/bin ]] && export PATH="$PYENV_ROOT/bin:$PATH"
    eval "$(pyenv init - bash)"
    command -v pyenv &> /dev/null
fi

# OPTIONAL: Install the latest stable version of Python
# Uncomment the following line if you would like to automatically install it
# pyenv install 3.12.0 && pyenv global 3.12.0

# Always-on fragment: ~/.config/zsh/pyenv.zsh (sourced from ~/.zshenv)
curl -fsSL https://git.miomio.moe/mio/easyzsh/raw/branch/master/patch.sh | bash -s -- zsh/pyenv
# macOS path_helper runs after ~/.zshenv in login shells, so reapply pyenv afterwards.
PYENV_LOGIN_HOOK='[[ -f "${XDG_CONFIG_HOME:-$HOME/.config}/zsh/pyenv.zsh" ]] && . "${XDG_CONFIG_HOME:-$HOME/.config}/zsh/pyenv.zsh"'
if ! grep -Fqx "$PYENV_LOGIN_HOOK" "$HOME/.zprofile" 2>/dev/null; then
    [[ ! -s "$HOME/.zprofile" ]] || printf '\n' >> "$HOME/.zprofile"
    printf '%s\n' "$PYENV_LOGIN_HOOK" >> "$HOME/.zprofile"
fi
# Drop legacy interactive-only copy if present
rm -f "$HOME/.config/zshrc/pyenv.zsh"