# Use Go 1.22 Alpine as the base image for building the application
FROM golang:1.22-alpine AS builder

# Install git for repository access
RUN apk add --no-cache git ca-certificates

# Define the base directory for the application as an environment variable
ENV SERVER_DIR=/openim-server

# Set the working directory inside the container based on the environment variable
WORKDIR $SERVER_DIR

# Copy protocol directory first (must be before COPY . . to avoid conflicts)
# This copies protocol to /protocol, which is ../protocol relative to SERVER_DIR
COPY protocol /protocol

# Copy current directory
COPY . .

RUN echo "执行 go mod tidy..." && go mod tidy || (echo "go mod tidy 失败" && exit 1)

RUN echo "开始编译 openim-msggateway..." && \
    go build -v -o _output/openim-msggateway ./cmd/openim-msggateway || \
    (echo "编译失败，查看详细错误信息" && exit 1)


# Using Alpine Linux for the final image
FROM alpine:latest

# Install necessary packages, such as bash
RUN apk add --no-cache bash

# Set the environment and work directory
ENV SERVER_DIR=/openim-server
WORKDIR $SERVER_DIR


# Copy the compiled binaries and mage from the builder image to the final image
COPY --from=builder $SERVER_DIR/_output $SERVER_DIR/_output
# COPY --from=builder $SERVER_DIR/config $SERVER_DIR/config

# Set the command to run when the container starts
ENTRYPOINT ["sh", "-c", "_output/openim-msggateway"]