# Arguments:
# $1 : path to mathlib4 from working directory
# $2 : path to doc-gen4 from working directory
# $3 : whether to deploy

set -e
set -x

cd $1
mathlib_short_git_hash="$(git log -1 --pretty=format:%h)"

cd ../$2
docgen_git_hash="$(git log -1 --pretty=format:%h)"

cd ../

git clone "https://github.com/leanprover-community/mathlib4_docs.git" mathlib4_docs

# skip if docs for this commit have already been generated
if [ "$(cd mathlib4_docs && git log -1 --pretty=format:%s)" == "automatic update to mathlib4 $mathlib_short_git_hash using doc-gen4 $docgen_git_hash" ]; then
  exit 0
fi

# generate the docs
cd $1
../$2/build/bin/doc-gen4 --ink ../$4/build/bin/leanInk Mathlib

if [ "$3" = "true" ]; then
  cd ..
  rm -rf mathlib4_docs/docs/
  cp -r "$1/build/doc" mathlib4_docs/docs
  mkdir ~/.ssh
  echo "$MATHLIB4_DOCS_KEY" > ~/.ssh/id_ed25519
  chmod 600 ~/.ssh/id_ed25519
  cd mathlib4_docs/docs
  git remote set-url origin "git@github.com:leanprover-community/mathlib4_docs.git"
  git config user.email "leanprover.community@gmail.com"
  git config user.name "leanprover-community-bot"
  git add -A .
  git checkout --orphan master2
  git commit -m "automatic update to mathlib4 $mathlib_short_git_hash using doc-gen4 $docgen_git_hash"
  git push -f origin HEAD:master
fi