Dockerfile.coverage

# Coverage tile worker — bakes the live network-coverage raster pyramid using the
# same RF engine as the frontend (ITM WASM + renderCoverageRaster), headless in
# Node via tsx + sharp. Writes tiles to a shared volume that meshinfo serves.

# Stage 1: compile NTIA ITM to WASM (same as the SPA image).
FROM --platform=linux/amd64 emscripten/emsdk:6.0.2 AS wasm-build
RUN apt-get update && apt-get install -y --no-install-recommends git ca-certificates \
    && rm -rf /var/lib/apt/lists/*
WORKDIR /itm
COPY frontend/wasm/itm/fetch-vendor.sh frontend/wasm/itm/build.sh frontend/wasm/itm/shim.h ./
RUN chmod +x fetch-vendor.sh build.sh && ./fetch-vendor.sh && ./build.sh

# trunk-ignore-all(checkov/CKV_DOCKER_3)
FROM node:25.9.0-alpine
LABEL org.opencontainers.image.source="https://github.com/MeshAddicts/meshinfo"
LABEL org.opencontainers.image.description="MeshInfo coverage tile worker — bakes the live network-coverage raster pyramid."

# Dependency layer first: only manifest/lockfile changes re-run the install,
# so source edits don't re-download node_modules.
WORKDIR /frontend
COPY frontend/package.json frontend/yarn.lock frontend/.yarnrc.yml ./
RUN rm -f /usr/local/bin/yarn /usr/local/bin/yarnpkg \
    && npm install -g corepack \
    && corepack enable \
    && yarn

COPY frontend/ /frontend/
COPY --from=wasm-build /itm/dist/itm.js /frontend/src/generated/itm/itm.js
COPY --from=wasm-build /itm/dist/itm.d.ts /frontend/src/generated/itm/itm.d.ts

ENV MESHINFO_URL=http://meshinfo:9000
ENV COVERAGE_OUTPUT_DIR=/output/coverage

# Long-lived service: poll the node set, rebake on change + a periodic backstop.
CMD ["yarn", "tsx", "coverage-worker/index.ts"]