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

ROOT_DIR="$(cd "$(dirname "$0")/../.." && pwd)"
IMAGE_PREFIX="juwan"
IMAGE_TAG="${1:-dev}"

cd "$ROOT_DIR"

find app -mindepth 2 -maxdepth 2 -type d \( -name "api" -o -name "rpc" -o -name "mq" \) | sort | while read -r service_dir; do
  service_type=$(basename "$service_dir")
  service_name=$(basename "$(dirname "$service_dir")")

  entry_file=$(grep -rl "package main" "$service_dir"/*.go 2>/dev/null | head -n 1 || true)
  [[ -z "$entry_file" ]] && continue

  config_file=$(ls "$service_dir/etc/"*.yaml 2>/dev/null | head -n 1 || true)
  config_name="${config_file:+$(basename "$config_file")}"
  config_name="${config_name:-config.yaml}"

  image_name="${IMAGE_PREFIX}/${service_name}-${service_type}:${IMAGE_TAG}"
  echo "--- $image_name ---"

  cat > Dockerfile.tmp <<EOF
FROM golang:1.25-alpine AS builder
RUN apk add --no-cache tzdata
WORKDIR /build
COPY go.mod go.sum ./
RUN go mod download
COPY . .
RUN go build -ldflags="-s -w" -o /app/main ./$service_dir

FROM alpine:latest
COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
COPY --from=builder /usr/share/zoneinfo/Asia/Shanghai /usr/share/zoneinfo/Asia/Shanghai
ENV TZ=Asia/Shanghai
WORKDIR /app
COPY --from=builder /app/main /app/main
COPY $service_dir/etc /app/etc
CMD ["./main", "-f", "etc/$config_name"]
EOF

  docker build -f Dockerfile.tmp -t "$image_name" . && echo "OK: $image_name" || echo "FAIL: $image_name"
  rm -f Dockerfile.tmp
done