#!/usr/bin/env bash
# ShellTeam one-line installer, served at https://shellteam.sh/install
#
#   curl -fsSL https://shellteam.sh/install | bash
#   curl -fsSL https://shellteam.sh/install | bash -s -- --full --remote
#
# It clones (or updates) https://github.com/sebderhy/shellteam into ~/shellteam
# (SHELLTEAM_DIR to change it), then runs that checkout's ./install.sh with your
# flags. That is all it does; the real work, and every flag, is install.sh.
#
# Privacy: shellteam.sh's web server logs the download of this file, like any
# web page. That is how we count installs. Nothing else is sent, now or later.
set -euo pipefail

REPO_URL="https://github.com/sebderhy/shellteam"
DIR="${SHELLTEAM_DIR:-$HOME/shellteam}"

say() { printf '\033[1;33m==>\033[0m %s\n' "$*"; }
die() { printf '\033[1;31mError:\033[0m %s\n' "$*" >&2; exit 1; }

main() {
    if ! command -v git >/dev/null 2>&1; then
        command -v apt-get >/dev/null 2>&1 || die "git is missing and this is not a Debian/Ubuntu box. Install git, then re-run."
        say "Installing git"
        sudo apt-get update -qq && sudo apt-get install -y -qq git
    fi

    if [ -d "$DIR/.git" ]; then
        local origin
        origin="$(git -C "$DIR" remote get-url origin 2>/dev/null || true)"
        case "${origin%.git}" in
            "$REPO_URL"|git@github.com:sebderhy/shellteam) ;;
            *) die "$DIR is a git checkout of '$origin', not ShellTeam. Set SHELLTEAM_DIR to another folder." ;;
        esac
        say "Updating $DIR"
        git -C "$DIR" pull --ff-only
    elif [ -e "$DIR" ]; then
        die "$DIR already exists and is not a ShellTeam checkout. Set SHELLTEAM_DIR to another folder."
    else
        say "Downloading ShellTeam into $DIR"
        git clone "$REPO_URL" "$DIR"
    fi

    cd "$DIR"
    # Piped into bash, our stdin is this script, so install.sh would skip its
    # first-run questions. Hand it the terminal when there is one.
    if (: </dev/tty) 2>/dev/null; then
        exec ./install.sh "$@" </dev/tty
    fi
    exec ./install.sh "$@"
}

# Everything runs from here, so a download cut off halfway runs nothing.
main "$@"