# Build stage
FROM golang:1.22-alpine AS builder

WORKDIR /app

# Install dependencies
RUN apk add --no-cache git

# Copy go mod files
COPY go.mod go.sum ./

# Copy source code first to allow go mod tidy
COPY . .

# Update dependencies
RUN go mod tidy && go mod download

# Build
RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o main ./cmd/api

# Final stage
FROM alpine:3.19

WORKDIR /app

# Install ca-certificates for HTTPS
RUN apk --no-cache add ca-certificates tzdata

# Copy binary from builder
COPY --from=builder /app/main .

# Create non-root user
RUN adduser -D -g '' appuser
USER appuser

EXPOSE 8080

CMD ["./main"]