#!/bin/sh
# Basic checks that need no macOS SDK, so CI can run them on Linux.
# Run locally with `make check`. A full compile still needs a Mac.
set -eu
cd "$(dirname "$0")/.."

fail=0
step() { printf '\n==> %s\n' "$1"; }
bad()  { printf 'FAIL: %s\n' "$1"; fail=1; }

step "Swift syntax"
swiftc -parse Sources/Wakeful/*.swift || bad "swiftc -parse reported errors"

step "Info.plist"
# The Makefile seds these placeholders in; losing one ships a broken bundle.
for key in __BUNDLE_ID__ __VERSION__; do
    grep -q "$key" Resources/Info.plist || bad "Resources/Info.plist is missing $key"
done
if command -v plutil >/dev/null 2>&1; then
    plutil -lint Resources/Info.plist || bad "Resources/Info.plist is not a valid plist"
else
    swift - <<'SWIFT' || bad "Resources/Info.plist is not a valid plist"
import Foundation
let data = try Data(contentsOf: URL(fileURLWithPath: "Resources/Info.plist"))
_ = try PropertyListSerialization.propertyList(from: data, format: nil)
print("Resources/Info.plist: OK")
SWIFT
fi

step "Version"
version=$(sed -n 's/^VERSION *:= *//p' Makefile)
latest=$(sed -n 's/^## \[\([0-9][^]]*\)\].*/\1/p' CHANGELOG.md | head -n 1)
if [ -z "$version" ]; then
    bad "no VERSION in Makefile"
elif [ "$version" != "$latest" ]; then
    bad "Makefile VERSION is $version but the newest CHANGELOG release is ${latest:-missing}"
else
    echo "$version"
fi

step "Whitespace and conflict markers"
# Diff the whole tree against the empty tree so this works on a shallow clone.
empty=$(git hash-object -t tree /dev/null)
git diff --check "$empty" HEAD -- . && echo OK || bad "whitespace errors or conflict markers (see above)"

echo
if [ "$fail" -ne 0 ]; then
    echo "Checks failed."
    exit 1
fi
echo "All checks passed."