# --- Build stage ---
FROM rust:1.87-alpine AS builder

RUN apk add --no-cache musl-dev pkgconfig openssl-dev

WORKDIR /app
COPY Cargo.toml Cargo.lock* ./
# Pre-fetch deps with a dummy build for layer caching
RUN mkdir src && echo "fn main(){}" > src/main.rs && \
    cargo build --release && \
    rm -rf src

COPY src ./src
COPY static ./static
RUN touch src/main.rs && cargo build --release

# --- Runtime stage ---
FROM alpine:3.21

RUN apk add --no-cache ca-certificates ffmpeg

WORKDIR /app
COPY --from=builder /app/target/release/eventsnap-backend ./

EXPOSE 3000
CMD ["./eventsnap-backend"]