# syntax=docker/dockerfile:1

# --- Stage 0: Сборка Rust/Wasm ---
FROM rust:1.80-slim AS wasm-builder

RUN apt-get update && apt-get install -y pkg-config libssl-dev curl && \
    curl https://rustwasm.github.io/wasm-pack/installer/init.sh -sSf | sh

WORKDIR /build
COPY ./matrix-engine ./matrix-engine

WORKDIR /build/matrix-engine
# КЭШИРУЕМ: Реестр Cargo и папку target.
RUN --mount=type=cache,target=/usr/local/cargo/registry \
    --mount=type=cache,target=/build/matrix-engine/target \
    wasm-pack build --target web --release

# --- Stage 1: Установка зависимостей Node.js ---
FROM node:20-alpine AS deps
WORKDIR /app
RUN npm install -g pnpm
COPY package.json pnpm-lock.yaml* ./
RUN --mount=type=cache,target=/root/.local/share/pnpm/store \
    pnpm install --frozen-lockfile

# --- Stage 2: Сборка Next.js ---
FROM node:20-alpine AS builder
WORKDIR /app
RUN npm install -g pnpm
COPY --from=deps /app/node_modules ./node_modules
COPY . .

# Создаем директорию заранее
RUN mkdir -p ./public/wasm-matrix/

# Копируем ВЕСЬ контент из pkg (там matrix_engine.js, matrix_engine_bg.js и .wasm)
# Это критично, так как они зависят друг от друга
COPY --from=wasm-builder /build/matrix-engine/pkg/* ./public/wasm-matrix/

# Копируем сам воркер поверх (если он не попал в pkg ранее)
RUN cp matrix-engine/matrix_worker.js public/wasm-matrix/

ENV NEXT_TELEMETRY_DISABLED=1
RUN pnpm run build

# --- Stage 3: Продакшен сервер ---
FROM node:20-alpine AS runner
WORKDIR /app
ENV NODE_ENV=production

RUN addgroup --system --gid 1001 nodejs
RUN adduser --system --uid 1001 nextjs
USER nextjs

COPY --from=builder /app/public ./public
COPY --from=builder /app/.next ./.next
COPY --from=builder /app/node_modules ./node_modules
COPY --from=builder /app/package.json ./package.json

EXPOSE 3000
CMD ["npm", "start"]