#!/bin/sh
# Nedim desktop installer for macOS and Linux.
#
# What it does: detects the platform, downloads the newest desktop build from api.nedim.app and
# tells you what to do next. macOS: saves the .dmg to ~/Downloads and opens it. Linux (x86_64):
# puts the AppImage at ~/.local/bin/nedim and makes it executable. No sudo, no package manager,
# nothing outside your home folder. Uses curl if present, otherwise wget.
#
# This is the script the download page links to (https://nedim.app/download/):
#   curl -fsSL https://nedim.app/install.sh | sh
set -eu

base="https://api.nedim.app/download"
page="https://nedim.app/download/"

unsupported() {
  echo "nedim: unsupported platform ($(uname -s) $(uname -m)), see $page" >&2
  exit 1
}

# fetch URL DEST: curl if present, else wget
fetch() {
  if command -v curl >/dev/null 2>&1; then
    curl -fL --progress-bar -o "$2" "$1"
  elif command -v wget >/dev/null 2>&1; then
    wget -O "$2" "$1"
  else
    echo "nedim: neither curl nor wget is installed; download by hand from $page" >&2
    exit 1
  fi
}

os=$(uname -s)
arch=$(uname -m)

case "$os" in
  Darwin)
    # A shell running under Rosetta reports x86_64 on an Apple Silicon Mac; ask the kernel.
    if [ "$(sysctl -n hw.optional.arm64 2>/dev/null || echo 0)" = "1" ]; then
      arch=arm64
    fi
    case "$arch" in
      arm64) url="$base/mac-arm64" ;;
      x86_64) url="$base/mac-x64" ;;
      *) unsupported ;;
    esac
    dest="$HOME/Downloads/Nedim.dmg"
    mkdir -p "$HOME/Downloads"
    echo "Downloading Nedim for macOS ($arch) ..."
    fetch "$url" "$dest"
    echo "Saved to $dest"
    open "$dest"
    echo ""
    echo "Next: drag Nedim to Applications."
    echo "The first time, right-click Nedim in Applications and choose Open (the build is not code-signed yet)."
    echo "Then open the invitation link from your e-mail, or paste it into the app."
    ;;
  Linux)
    case "$arch" in
      x86_64 | amd64) ;;
      *) unsupported ;;
    esac
    dir="$HOME/.local/bin"
    dest="$dir/nedim"
    mkdir -p "$dir"
    echo "Downloading Nedim for Linux (x86_64) ..."
    fetch "$base/linux" "$dest.part"
    chmod +x "$dest.part"
    mv "$dest.part" "$dest"
    echo "Installed: $dest"
    case ":$PATH:" in
      *":$dir:"*) echo "Run it with: nedim" ;;
      *)
        echo "Note: $dir is not on your PATH. Run it as $dest, or add the folder to PATH:"
        echo "  export PATH=\"\$HOME/.local/bin:\$PATH\""
        ;;
    esac
    echo "Then open the invitation link from your e-mail, or paste it into the app."
    ;;
  *) unsupported ;;
esac