# Stage 1: Build
FROM rust:1.94-bookworm AS builder

# Install Node.js
RUN curl -fsSL https://deb.nodesource.com/setup_22.x | bash - \
    && apt-get install -y nodejs

# Install wasm-pack
RUN curl https://rustwasm.github.io/wasm-pack/installer/init.sh -sSf | sh

# Add wasm target
RUN rustup target add wasm32-unknown-unknown

WORKDIR /app

# Cache npm dependencies
COPY package*.json ./
RUN npm ci

# Cache Rust dependencies
COPY image-processor/Cargo.toml image-processor/Cargo.lock* ./image-processor/
RUN mkdir -p image-processor/src && echo "pub fn main(){}" > image-processor/src/lib.rs \
    && cd image-processor && cargo fetch

# Copy full source and build
COPY . .
RUN npm run build

# Stage 2: Serve
FROM nginx:alpine

COPY --from=builder /app/dist /usr/share/nginx/html

EXPOSE 80