#!/usr/bin/env bash

set -euo pipefail

REPO="charmbracelet/crush"
MODULE="github.com/${REPO}"
DEFAULT_LIMIT=50

require() {
    if ! command -v "$1" >/dev/null 2>&1; then
        echo "Missing required command: $1" >&2
        exit 1
    fi
}

require go

version="${1:-}"

if [[ -z "$version" ]]; then
    require gh
    require gum

    echo "Fetching latest releases from ${REPO}..." >&2
    releases="$(gh api "/repos/${REPO}/releases?per_page=${DEFAULT_LIMIT}" --jq '.[].tag_name' | sed '/^$/d')"

    if [[ -z "$releases" ]]; then
        echo "No releases found for ${REPO}" >&2
        exit 1
    fi

    version="$(printf "%s\n" "$releases" | gum choose --header="Select Crush release")"
fi

if [[ -z "$version" ]]; then
    echo "No version selected or provided" >&2
    exit 1
fi

if command -v uninstall-crush >/dev/null 2>&1; then
    echo "Removing existing Crush installation (if any)..."
    uninstall-crush || true
fi

echo "Installing Crush ${version} via go install..."
GO111MODULE=on go install -v "${MODULE}@${version}"

install_dir="${GOBIN:-${GOPATH:-$HOME/go}/bin}"

if [[ ! -x "$install_dir/crush" ]]; then
    echo "No Crush binary found after installation" >&2
    exit 1
fi

echo "Crush ${version} installed at ${install_dir}/crush"