#!/usr/bin/env bash
# Generate Go gRPC stubs from the vendored proto into go/genpb/auth.
# The proto's in-file `option go_package` targets the server's module; the
# M-flag mapping here overrides it for this client module.
set -euo pipefail

here="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
cd "$here/go"
export PATH="$(go env GOPATH)/bin:$PATH"
MOD=git.awesomike.com/pub/st-peter-client/go

# proto filename (relative to ../proto) -> Go package dir under the module
protos=(
  st-peter-auth.proto:genpb/auth
  st-peter-admin.proto:genpb/admin
)

files=()
mflags=()
for entry in "${protos[@]}"; do
  f="${entry%%:*}"; pkg="${entry##*:}"
  files+=("$f")
  mflags+=("--go_opt=M$f=$MOD/$pkg" "--go-grpc_opt=M$f=$MOD/$pkg")
done

rm -rf genpb
protoc -I ../proto \
  --go_out=. --go_opt=module="$MOD" \
  --go-grpc_out=. --go-grpc_opt=module="$MOD" \
  "${mflags[@]}" \
  "${files[@]}"

echo "Generated Go stubs under go/genpb/"