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

repo_root="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
cd "${repo_root}"

: "${GOCACHE:=/tmp/bat-go-cache}"
export GOCACHE
: "${XDG_CACHE_HOME:=/tmp/bat-xdg-cache}"
export XDG_CACHE_HOME

source "${repo_root}/scripts/ci-versions.sh"
export GOLANGCI_LINT_VERSION

run_required() {
  local name="$1"
  shift
  printf 'RUN required: %s\n' "${name}"
  "$@"
  printf 'PASS required: %s\n' "${name}"
}

check_gofmt() {
  local -a go_dirs=()
  local -a go_files=()
  local dir file formatted dirs_file
  dirs_file="$(mktemp)"
  if ! go list -f '{{.Dir}}' ./... >"${dirs_file}"; then
    rm -f "${dirs_file}"
    return 1
  fi
  mapfile -t go_dirs <"${dirs_file}"
  rm -f "${dirs_file}"
  for dir in "${go_dirs[@]}"; do
    for file in "${dir}"/*.go; do
      [[ -f "${file}" ]] && go_files+=("${file}")
    done
  done
  if ((${#go_files[@]} == 0)); then
    return
  fi
  formatted="$(gofmt -l "${go_files[@]}")"
  if [[ -n "${formatted}" ]]; then
    printf 'gofmt required; files need formatting:\n%s\n' "${formatted}" >&2
    return 1
  fi
}

run_required "Rust formatting" cargo fmt --all -- --check
run_required "Go formatting" check_gofmt
run_required "Rust check" cargo check --workspace --locked
run_required "Rust release build" cargo build --workspace --release --locked
run_required "Rust clippy" cargo clippy --workspace --all-targets --locked -- -D warnings
run_required "Rust tests" cargo test --workspace --locked
run_required "Go API tests" go test ./internal/api/... ./internal/backendrpc/... ./cmd/bat-api/...
run_required "Go API vet" go vet ./internal/api/... ./internal/backendrpc/... ./cmd/bat-api/...
run_required "Go API build" go build -o /tmp/bat-api ./cmd/bat-api
run_required "Go lint version" bash -c '
  source scripts/ci-versions.sh
  command -v golangci-lint >/dev/null 2>&1 ||
    { printf "golangci-lint %s is required but not installed\n" "${GOLANGCI_LINT_VERSION}" >&2; exit 1; }
  actual="$(golangci_lint_actual_version)"
  if [[ "${actual}" != "${GOLANGCI_LINT_VERSION}" ]]; then
    printf "golangci-lint version mismatch: required=%s actual=%s\n" \
      "${GOLANGCI_LINT_VERSION}" "${actual:-unknown}" >&2
    exit 1
  fi
'
run_required "Go lint" golangci-lint run ./...
run_required "Documentation, OpenAPI, and contract checks" make check-docs

printf 'all required check-only gates passed\n'