#!/usr/bin/env bash
set -euo pipefail

here="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
repo="$(cd "${here}/../../.." && pwd)"
cargoxx_bin="${CARGOXX_BIN:-${repo}/build/debug/cargoxx}"

if [[ ! -x "${cargoxx_bin}" ]]; then
    echo "error: cargoxx binary not found at ${cargoxx_bin}" >&2
    echo "build it first: nix develop --command cmake --build build/debug" >&2
    exit 1
fi

work="$(mktemp -d -t cargoxx-e2e-pathdep-XXXXXX)"
trap 'rm -rf "${work}"' EXIT

cp -r "${here}/." "${work}/"
sed -i "s|path:\\.\\./\\.\\./\\.\\.|path:${repo}|" "${work}/flake.nix"

cd "${work}"

echo "=== cargoxx build --no-build in greeter (path dep generates its own lock)"
(cd greeter && "${cargoxx_bin}" build --no-build)

echo "=== cargoxx build --no-build in consumer"
"${cargoxx_bin}" build --no-build

[[ -f Cargoxx.lock ]] || { echo "Cargoxx.lock missing"; exit 1; }
grep -q "source_kind = 'cargoxx-path'" Cargoxx.lock || \
    { echo "Cargoxx.lock missing source_kind = cargoxx-path"; exit 1; }

# nix build needs the source tree to be a git tree so 'path:' input copies
# Cargoxx.lock into the store. Init a throwaway git here.
git init -q
git add -A
git -c user.email=e2e@cargoxx -c user.name=e2e commit -q -m fixture

echo "=== nix build .#default"
out="$(nix build .#default --no-link --print-out-paths \
    --extra-experimental-features 'nix-command flakes')"

[[ -n "${out}" ]] || { echo "nix build produced no output path"; exit 1; }
[[ -x "${out}/bin/consumer" ]] || { echo "missing ${out}/bin/consumer"; exit 1; }

echo "=== execute"
"${out}/bin/consumer"

echo "ok"