name: spreadsheet

# Phase 0 of REVIEWS/REPO_COVERAGE_100_PLAN.md.
#
# tools/test-spreadsheet-coverage.sh has existed with per-file floors for
# some time and **no CI job ran it**. 15,373 measured lines with nothing
# stopping them decaying: the cheapest gap in the plan, and this closes
# it. No new tests are written here — this is ratchet installation.
#
# Measured when this job was added:
#   engine         98.83% of lines (floor 96)
#   ui-controllers 98.85% of lines (floor 96)
#
# Two jobs rather than one, because the halves have very different costs
# and very different failure modes. The engine is pure Rust and finishes
# in about three minutes; the UI half has to build Makepad's Linux
# backend to link a test binary, which is the slow part and the part
# that breaks when a native package goes missing from the runner. A
# single job would hide an engine regression behind a ten-minute build.
#
# The script installs the toolchain from rust-toolchain.toml into its own
# temporary directory and deletes it on exit, so there is deliberately no
# toolchain step here.

on:
  push:
    paths:
      - 'crates/apps/spreadsheet/**'
      - 'tools/test-spreadsheet-coverage.sh'
      - 'tools/makepad-native-libs.sh'
      - 'Cargo.lock'
      - 'Cargo.toml'
      - 'rust-toolchain.toml'
      - '.forgejo/workflows/spreadsheet.yml'
  pull_request:
    paths:
      - 'crates/apps/spreadsheet/**'
      - 'tools/test-spreadsheet-coverage.sh'
      - 'tools/makepad-native-libs.sh'
      - 'Cargo.lock'
      - 'Cargo.toml'
      - 'rust-toolchain.toml'
      - '.forgejo/workflows/spreadsheet.yml'

jobs:
  # ---------------------------------------------------------------------
  # The formula engine: pure Rust, no Makepad, no display. This is the
  # job that can prove something cheaply, so it runs unconditionally and
  # first.
  # ---------------------------------------------------------------------
  engine-coverage:
    runs-on: ubuntu-latest
    timeout-minutes: 30
    steps:
      - uses: actions/checkout@v4

      - name: Engine coverage, with floors
        run: COVERAGE_TARGET=engine ./tools/test-spreadsheet-coverage.sh

  # ---------------------------------------------------------------------
  # The UI controller modules. Needs Makepad's Linux packages to LINK the
  # test binary -- `cargo check` passes without them and the link then
  # fails with "unable to find library -lasound", long after the compile
  # appeared to succeed. tools/makepad-native-libs.sh documents the set.
  #
  # The script calls that helper's --check itself and aborts when a
  # package is missing, so this job cannot quietly measure nothing.
  # ---------------------------------------------------------------------
  ui-controller-coverage:
    runs-on: ubuntu-latest
    timeout-minutes: 45
    steps:
      - uses: actions/checkout@v4

      - name: Install Makepad's native dependencies
        run: bash tools/makepad-native-libs.sh --install

      - name: UI controller coverage, with floors
        run: COVERAGE_TARGET=ui ./tools/test-spreadsheet-coverage.sh