#!/bin/sh
# Rinzo CLI installer: rinzo 0.4.2.   curl -fsSL https://rinzo.ai/install.sh | sh
# Downloads the CLI wheel from https://rinzo.ai, checks its SHA-256 and installs it with uv, pipx or a
# private Python environment; `rinzo` ends up in ~/.local/bin. RINZO_INSTALL_ORIGIN overrides the origin.
# Rinzo was called Topaz: a uv or pipx install of the topaz CLI (topaz-tel) is replaced, and rinzo
# copies its login and settings on first use.
set -eu

VERSION='0.4.2'
WHEEL='rinzo-0.4.2-py3-none-any.whl'
SHA256='fa7d1e4754e84ac11883a0a567e4f69553ec453fdaf2b1c5a5e10da003f09265'
ORIGIN="${RINZO_INSTALL_ORIGIN:-${TOPAZ_INSTALL_ORIGIN:-https://rinzo.ai}}"

say() { printf '%s\n' "$@"; }
fail() { printf 'rinzo install: %s\n' "$*" >&2; exit 1; }

sha256() {
  if command -v sha256sum >/dev/null 2>&1; then sha256sum "$1" | cut -d' ' -f1
  elif command -v shasum >/dev/null 2>&1; then shasum -a 256 "$1" | cut -d' ' -f1
  else python3 -c 'import hashlib, sys; print(hashlib.sha256(open(sys.argv[1], "rb").read()).hexdigest())' "$1"
  fi
}

# listed OUTPUT NAME: whether a line of a tool listing starts with "NAME ".
listed() {
  printf '%s\n' "$1" | (
    while IFS= read -r line; do
      case "$line" in "$2 "*) exit 0 ;; esac
    done
    exit 1
  )
}

# The topaz CLI's package owns the `topaz` command; rinzo installs its own (deprecated) `topaz` alias.
remove_topaz_tel() {
  if command -v uv >/dev/null 2>&1 && listed "$(uv tool list 2>/dev/null || true)" topaz-tel; then
    say "Removing the topaz CLI (uv tool topaz-tel): rinzo replaces it and keeps its login"
    uv tool uninstall topaz-tel || say "Could not remove it; run: uv tool uninstall topaz-tel"
  fi
  if command -v pipx >/dev/null 2>&1 && listed "$(pipx list --short 2>/dev/null || true)" topaz-tel; then
    say "Removing the topaz CLI (pipx package topaz-tel): rinzo replaces it and keeps its login"
    pipx uninstall topaz-tel || say "Could not remove it; run: pipx uninstall topaz-tel"
  fi
}

main() {
  command -v python3 >/dev/null 2>&1 || fail "Python 3.10 or newer is required (python3 was not found)"
  python3 -c 'import sys; sys.exit(sys.version_info < (3, 10))' ||
    fail "Python 3.10 or newer is required (found $(python3 -c 'import platform; print(platform.python_version())'))"
  tmp=$(mktemp -d 2>/dev/null || mktemp -d -t rinzo)
  trap 'rm -rf "$tmp"' EXIT
  trap 'exit 1' INT TERM
  url="${ORIGIN%/}/downloads/$WHEEL"
  say "Downloading $url"
  if command -v curl >/dev/null 2>&1; then
    curl -fsSL -o "$tmp/$WHEEL" "$url" || fail "download failed: $url"
  elif command -v wget >/dev/null 2>&1; then
    wget -q -O "$tmp/$WHEEL" "$url" || fail "download failed: $url"
  else
    fail "curl or wget is required"
  fi
  actual=$(sha256 "$tmp/$WHEEL")
  [ "$actual" = "$SHA256" ] || fail "checksum mismatch for $WHEEL (expected $SHA256, got $actual); nothing was installed"
  remove_topaz_tel
  bin="$HOME/.local/bin"
  data="${XDG_DATA_HOME:-$HOME/.local/share}"
  if command -v uv >/dev/null 2>&1; then
    say "Installing with uv"
    uv tool install --force "$tmp/$WHEEL"
  elif command -v pipx >/dev/null 2>&1; then
    say "Installing with pipx"
    pipx install --force "$tmp/$WHEEL"
  else
    venv="$data/rinzo/venv"
    say "Installing into $venv"
    python3 -m venv --clear "$venv" ||
      fail "could not create a Python environment (Debian/Ubuntu: sudo apt install python3-venv)"
    "$venv/bin/python" -m pip install --quiet --disable-pip-version-check --no-index --no-deps "$tmp/$WHEEL"
    mkdir -p "$bin"
    ln -sf "$venv/bin/rinzo" "$bin/rinzo"
    ln -sf "$venv/bin/topaz" "$bin/topaz"
  fi
  if [ -d "$data/topaz/venv" ]; then
    say "" "The topaz CLI's old environment is no longer used; remove it with: rm -rf '$data/topaz/venv'"
  fi
  case ":$PATH:" in
    *":$bin:"*) ;;
    *) say "" "$bin is not on your PATH. Add it, e.g.:  export PATH=\"\$HOME/.local/bin:\$PATH\"" ;;
  esac
  say "" "Installed rinzo $VERSION. Next:" \
    "  rinzo login            # approve in the browser as an account administrator" \
    "  rinzo skill install    # the rinzo skill for Claude Code (--agent codex for Codex)"
  if [ -d "${XDG_CONFIG_HOME:-$HOME/.config}/topaz" ]; then
    say "Used the topaz CLI before? rinzo copies its login on first use: try  rinzo whoami"
  fi
}

main "$@"