#!/usr/bin/env bash
# =============================================================================
#  run_onchange_30-ensure-cargo.sh.tmpl
#  Make sure rustup/cargo is available. If not, install rustup.
#  Runs on every apply because the script body rarely changes but we want a
#  fresh check after package installs.
# =============================================================================
set -euo pipefail

log() { printf '\033[1;34m[cargo]\033[0m %s\n' "$*"; }

if command -v cargo >/dev/null 2>&1; then
    log "cargo already installed: $(cargo --version)"
    exit 0
fi

if command -v rustup >/dev/null 2>&1; then
    log "rustup present but cargo missing — running rustup default"
    rustup default stable
    exit 0
fi

log "no cargo or rustup — installing rustup"
sh -c "$(curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs)" -- -y --default-toolchain stable --profile minimal
# shellcheck disable=SC1091
source "$HOME/.cargo/env"

log "rustup installed: $(rustup --version)"
log "cargo installed: $(cargo --version)"