#!/usr/bin/env bash
# D3Codex installer - put the `d3codex` terminal helper on your PATH.
#
#   curl -fsSL https://d3codex.com/install.sh | bash
#
# Downloads https://d3codex.com/d3codex.sh into ~/.local/bin and, if that dir is
# not already on your PATH, adds it to your shell startup file. No sudo, nothing
# outside your home directory. Override the location with D3CODEX_BIN.
# View this script first at https://d3codex.com/install.sh ; the tool: /cli/.
set -euo pipefail

SRC="${D3CODEX_SRC:-https://d3codex.com/d3codex.sh}"
DIR="${D3CODEX_BIN:-$HOME/.local/bin}"

mkdir -p "$DIR"
curl -fsSL "$SRC" -o "$DIR/d3codex"
chmod +x "$DIR/d3codex"
echo "Installed: $DIR/d3codex"

# Already on PATH? Then there is nothing else to do.
case ":$PATH:" in
  *":$DIR:"*) echo "Ready. Try: d3codex myprogram.bp"; exit 0 ;;
esac

# Not on PATH: add it to the right shell startup file, once.
LINE="export PATH=\"$DIR:\$PATH\""
case "${SHELL##*/}" in
  zsh)  RC="$HOME/.zshrc" ;;
  bash) if [ -f "$HOME/.bash_profile" ]; then RC="$HOME/.bash_profile"; else RC="$HOME/.bashrc"; fi ;;
  *)    RC="" ;;
esac

if [ -n "$RC" ]; then
  if ! grep -qsF "$DIR" "$RC"; then
    printf '\n# added by the D3Codex installer (https://d3codex.com/install.sh)\n%s\n' "$LINE" >> "$RC"
    echo "Added $DIR to your PATH in $RC"
  fi
  echo "Restart your terminal (or run: source \"$RC\"), then: d3codex myprogram.bp"
else
  echo "Add this line to your shell startup file, then restart your terminal:"
  echo "  $LINE"
fi