package main

import "strings"

// MergeCheck is the first commit's merge-check.sh (ADR 0428 §4): it declares the Go toolchain (ADR 0238 §4, read
// among a script's first lines by the build seat), and runs the unit tests, then with -tags integration the
// integration tests, of every Go module in the tree; on a tree with none it says so and passes.
const MergeCheck = `#!/bin/sh
# mesh-check-toolchain: go
#
# This repository's own check, mesh/repo-check (novox/hq ADR 0238 §4), written with its first commit (ADR 0428 §4):
# every Go module in the tree is vetted, its unit tests run, and then its integration tests (-tags integration).
# A tree with no Go module has nothing to test, and the check says so and passes.
set -eu
cd "$(dirname "$0")"

modules=$(find . -name go.mod -not -path '*/vendor/*' -not -path './.git/*' | sort)
if [ -z "$modules" ]; then
  echo "This tree holds no Go module, so there are no tests to run; the check passes."
  exit 0
fi
for mod in $modules; do
  dir=$(dirname "$mod")
  echo "== $dir: go vet and the unit tests"
  (cd "$dir" && go vet ./... && go test ./...)
  echo "== $dir: the integration tests (-tags integration)"
  (cd "$dir" && go vet -tags integration ./... && go test -tags integration ./...)
done
`

// FirstCommit is main's first commit of a listed repository: its README, naming the repository's purpose, and
// its own check.
func FirstCommit(name string, r Repo) map[string]string {
	purpose := strings.TrimSpace(r.Description)
	if purpose == "" {
		purpose = "(its purpose is not described yet: the gitea module's config value `repositories` describes it)"
	}
	readme := "# " + name + "\n\n" + purpose + "\n\n" +
		"Made by the mesh from the gitea module's config value `repositories` (novox/hq ADR 0428). Main takes no push: " +
		"a change reaches it by a pull request whose `mesh/repo-check` (this repository's `merge-check.sh`) and " +
		"`mesh/merge-gate` passed.\n"
	return map[string]string{"README.md": readme, "merge-check.sh": MergeCheck}
}