#!/bin/bash
# Copyright Hornet. All rights reserved.
#
# Installs the Hornet CLI. Served publicly from https://get.hornet.dev:
#
#     curl -sSLf https://get.hornet.dev | bash
set -euo pipefail

DIST_URL=${HORNET_DIST_URL:-https://dl.cloudsmith.io/basic/hornet-dev/releases/raw}
VERSION=${HORNET_VERSION:-latest}
WORKDIR=
TOKEN=

fail() {
    echo install: "$@" 1>&2
    exit 1
}

read_token() {
    if [[ -n ${HORNET_ENTITLEMENT_TOKEN:-} ]]; then
        echo "$HORNET_ENTITLEMENT_TOKEN"
        return
    fi
    { : </dev/tty; } 2>/dev/null ||
        fail "no entitlement token given: set HORNET_ENTITLEMENT_TOKEN"
    local token
    printf 'Hornet Entitlement Token: ' >/dev/tty
    IFS= read -rs token </dev/tty || fail "could not read the entitlement token"
    printf '\n' >/dev/tty
    [[ -n $token ]] || fail "the entitlement token is empty"
    echo "$token"
}

download() {
    local name=$1
    (
        umask 077
        printf 'user = "token:%s"\n' "$TOKEN" >"$WORKDIR"/curlrc
    )
    curl -sSLf --config "$WORKDIR"/curlrc -o "$WORKDIR/$name" "$DIST_URL/versions/$VERSION/$name" ||
        fail "could not download $name: check that the entitlement token is valid"
    rm -f -- "$WORKDIR"/curlrc
}

main() {
    TOKEN=$(read_token)
    WORKDIR=$(mktemp -d)
    trap 'rm -rf -- "$WORKDIR"' EXIT
    download hornet-cli.tar.gz
    tar -xzf "$WORKDIR"/hornet-cli.tar.gz -C "$WORKDIR" --strip-components=1 ||
        fail "could not unpack hornet-cli.tar.gz"
    local stdin=/dev/null
    if { : </dev/tty; } 2>/dev/null; then
        stdin=/dev/tty
    fi
    HORNET_CLI_ENTITLEMENT_TOKEN=$TOKEN bash "$WORKDIR"/install.sh "$@" <"$stdin"
}

main "$@"