#!/bin/sh
# Dotiphant installer for macOS and Linux.
#
#   curl -fsSL https://dotiphant.com/install.sh | sh
#
# What it does:
#   1. Installs uv (Astral's Python tool manager) if it is missing.
#   2. Installs Dotiphant with `uv tool install --upgrade dotiphant`.
#   3. Puts the `dotiphant` command on your PATH if it is not there yet.
#   4. Starts `dotiphant open`, which continues the setup in your browser.
#
# Settings for testing:
#   DOTIPHANT_SOURCE=PATH_OR_URL  install from a folder or git URL instead of PyPI
#   DOTIPHANT_NO_OPEN=1           print the next command instead of running it
#   DOTIPHANT_DRY_RUN_UV=1        if uv is missing, say what would happen and stop
set -eu

PACKAGE="${DOTIPHANT_SOURCE:-dotiphant}"
UV_INSTALLER_URL="https://astral.sh/uv/install.sh"
tmp_file=""

cleanup() { if [ -n "$tmp_file" ]; then rm -f "$tmp_file"; fi; }
trap cleanup EXIT
trap 'exit 130' INT TERM

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

say "Checking your system"
case "$(uname -s)" in
  Darwin) echo "macOS found." ;;
  Linux) echo "Linux found." ;;
  *) fail "This installer supports macOS and Linux only. On Windows, install uv
(https://docs.astral.sh/uv/) and run: uv tool install dotiphant" ;;
esac

# The uv installer puts uv here. A new shell finds it; this one may not yet.
PATH="$HOME/.local/bin:$PATH"

if command -v uv >/dev/null 2>&1; then
  echo "uv is installed: $(uv --version)"
else
  say "Installing uv, which Dotiphant uses to install itself and its own Python"
  echo "Source: $UV_INSTALLER_URL (the official installer from Astral)"
  if [ "${DOTIPHANT_DRY_RUN_UV:-}" = "1" ]; then
    echo "Dry run: would download that script to a temp file, then run it with sh."
    echo "Dry run: would then run: uv tool install --upgrade $PACKAGE"
    exit 0
  fi
  tmp_file=$(mktemp)
  if command -v curl >/dev/null 2>&1; then
    curl -fsSL "$UV_INSTALLER_URL" -o "$tmp_file"
  elif command -v wget >/dev/null 2>&1; then
    wget -q -O "$tmp_file" "$UV_INSTALLER_URL"
  else
    fail "Neither curl nor wget is installed. Install one of them and run this again."
  fi
  sh "$tmp_file"
  command -v uv >/dev/null 2>&1 || fail "uv was installed but cannot be found. Open a new terminal and run this again."
fi

say "Installing Dotiphant: uv tool install --upgrade $PACKAGE"
uv tool install --upgrade "$PACKAGE"

bin_dir=$(uv tool dir --bin)
if ! command -v dotiphant >/dev/null 2>&1; then
  say "Adding $bin_dir to your PATH, so new terminals find the dotiphant command"
  # This fails if your shell config already has it; a new terminal fixes that.
  if ! uv tool update-shell; then
    echo "Open a new terminal to use dotiphant, or add $bin_dir to your PATH."
  fi
  PATH="$bin_dir:$PATH"
fi

say "Done. Dotiphant $(dotiphant --version | cut -d' ' -f2) is installed."
echo "  Command:        $bin_dir/dotiphant"
echo "  Program files:  $(uv tool dir)/dotiphant"
echo "  Your archive:   created during setup; 'dotiphant status' shows the folder"
echo "  Update:         uv tool upgrade dotiphant"
echo "  Uninstall:      uv tool uninstall dotiphant"
echo "                  (this keeps your archive folder)"

# With `curl ... | sh` the script itself arrives on stdin, so check the
# output and the terminal device instead.
if [ "${DOTIPHANT_NO_OPEN:-}" != "1" ] && [ -t 1 ] && (: </dev/tty) 2>/dev/null; then
  say "Starting Dotiphant. Setup continues in your browser. Press Ctrl+C to stop."
  dotiphant open </dev/tty
else
  say "Next, run this to set up Dotiphant in your browser:"
  echo "  dotiphant open"
fi