#!/bin/bash

# Path: scripts/python.sh
set -e

BLUE='\033[1;34m'
YELLOW='\033[1;33m'
GREEN='\033[1;32m'
RED='\033[1;31m'
NC='\033[0m'

# OS Detection
if [ -f /etc/os-release ]; then
    . /etc/os-release
    OS=$ID
fi

# 1. Install Build Dependencies
if [ "$OS" == "arch" ] || [ "$OS" == "manjaro" ]; then
    echo -e "${BLUE}    LOG:${YELLOW} Installing Arch build dependencies...${NC}"
    sudo pacman -S --noconfirm --needed base-devel openssl zlib xz tk libffi bzip2 git
elif [ "$OS" == "ubuntu" ] || [ "$OS" == "debian" ]; then
    echo -e "${BLUE}    LOG:${YELLOW} Installing Debian build dependencies...${NC}"
    sudo DEBIAN_FRONTEND=noninteractive apt-get update
    sudo DEBIAN_FRONTEND=noninteractive apt-get install -y make build-essential libssl-dev zlib1g-dev \
    libbz2-dev libreadline-dev libsqlite3-dev wget curl llvm libncurses5-dev \
    libncursesw5-dev xz-utils tk-dev libffi-dev liblzma-dev git
fi

# 2. Define the Black Box Location
export PYENV_ROOT="$HOME/.programming/python/pyenv"
export PATH="$PYENV_ROOT/bin:$PATH"

echo -e "${BLUE}    LOG:${YELLOW} Setting up Pyenv in ${PYENV_ROOT}...${NC}"

# 3. Install Pyenv
if [ ! -d "$PYENV_ROOT" ]; then
    echo -e "${BLUE}    LOG:${YELLOW} Cloning Pyenv...${NC}"
    git clone https://github.com/pyenv/pyenv.git "$PYENV_ROOT"
    
    echo -e "${BLUE}    LOG:${YELLOW} Compiling Pyenv dynamic bash extension...${NC}"
    cd "$PYENV_ROOT" && src/configure && make -C src
    
    echo -e "${GREEN}    SUCCESS:${NC} Pyenv installed."
else
    echo -e "${GREEN}    SKIP:${NC} Pyenv already installed."
fi

# Initialize Pyenv for this script session
eval "$(pyenv init -)"

# 4. Install Miniforge (The Community Standard)
TARGET_VER="miniforge3-latest"

if ! pyenv versions | grep -q "$TARGET_VER"; then
    echo -e "${BLUE}    LOG:${YELLOW} Installing ${TARGET_VER}...${NC}"
    echo -e "${YELLOW}    NOTE: This avoids Anaconda licensing issues and uses conda-forge default.${NC}"
    
    pyenv install "$TARGET_VER"
    
    echo -e "${GREEN}    SUCCESS:${NC} Miniforge installed."
else
    echo -e "${GREEN}    SKIP:${NC} Miniforge already installed."
fi

# 5. Set Global Default
pyenv global "$TARGET_VER"

echo -e "${GREEN}    SUCCESS:${NC} Python setup completed. Default is now Miniforge (Conda)."