#!/usr/bin/env bash
# gen-bulk.sh <count> <plain|component>
# Writes <count> classes into the package that @SpringBootApplication already scans.
#
# 'plain' classes carry no stereotype annotation at all. They are still opened, read and
# have their annotation metadata parsed by the scanner -- which is the point: it separates
# the cost of *scanning* from the cost of *creating beans*.
set -euo pipefail
COUNT="${1:-5000}"
KIND="${2:-plain}"
ROOT="$(cd "$(dirname "$0")/.." && pwd)"
DIR="$ROOT/src/main/java/com/ankurm/startup/bulk"

rm -rf "$DIR"; mkdir -p "$DIR"
for i in $(seq 1 "$COUNT"); do
  if [ "$KIND" = "component" ]; then
    printf 'package com.ankurm.startup.bulk;\nimport org.springframework.stereotype.Component;\n@Component\npublic class Bulk%d { public int id() { return %d; } }\n' "$i" "$i" > "$DIR/Bulk$i.java"
  else
    printf 'package com.ankurm.startup.bulk;\npublic class Bulk%d { public int id() { return %d; } }\n' "$i" "$i" > "$DIR/Bulk$i.java"
  fi
done
echo "generated $COUNT $KIND classes in src/main/java/com/ankurm/startup/bulk"