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

ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
BACKEND_DIR="${ROOT_DIR}/backend"
PROFILE="$(mktemp -t hfb-backend-cover.XXXXXX)"
OUTPUT="$(mktemp -t hfb-backend-cover-output.XXXXXX)"
trap 'rm -f "${PROFILE}" "${OUTPUT}"' EXIT

cd "${BACKEND_DIR}"
go test -p 1 -count=1 -coverprofile="${PROFILE}" ./... | tee "${OUTPUT}"

coverage_for_package() {
  local package="$1"
  awk -v package="${package}" '
    $1 == "ok" && $2 == package {
      for (i = 1; i <= NF; i++) {
        if ($i == "coverage:") {
          value = $(i + 1)
          gsub(/%/, "", value)
          print value
          exit
        }
      }
    }
  ' "${OUTPUT}"
}

require_at_least() {
  local label="$1"
  local actual="$2"
  local minimum="$3"
  if [[ -z "${actual}" ]]; then
    printf '[coverage] 无法读取 %s 覆盖率\n' "${label}" >&2
    return 1
  fi
  if ! awk -v actual="${actual}" -v minimum="${minimum}" 'BEGIN { exit !(actual + 0 >= minimum + 0) }'; then
    printf '[coverage] %s 覆盖率 %s%%，低于门禁 %s%%\n' "${label}" "${actual}" "${minimum}" >&2
    return 1
  fi
  printf '[coverage] %s %s%%（门禁 %s%%）\n' "${label}" "${actual}" "${minimum}"
}

total="$(go tool cover -func="${PROFILE}" | awk '/^total:/ { gsub(/%/, "", $3); print $3 }')"
require_at_least "后端总语句" "${total}" "30.0"
require_at_least "order" "$(coverage_for_package hfb_sys/backend/internal/modules/order)" "40.0"
require_at_least "payment" "$(coverage_for_package hfb_sys/backend/internal/modules/payment)" "20.0"
require_at_least "wallet" "$(coverage_for_package hfb_sys/backend/internal/modules/wallet)" "34.0"
require_at_least "withdrawal" "$(coverage_for_package hfb_sys/backend/internal/modules/withdrawal)" "30.0"