#!/bin/bash

set -eou pipefail

# References:

#  - https://github.com/bioconda/bioconda-utils/blob/master/.circleci/build-docs.sh

#  - https://docs.travis-ci.com/user/encrypting-files

#  - https://gist.github.com/domenic/ec8b0fc8ab45f39403dd

# ----------------------------------------------------------------------------

#

# Repository-specific configuration

#

# ----------------------------------------------------------------------------

# Note that the keypair needs to be specific to repo, so if ORIGIN changes, the

# keypair (docs/key.enc, and the corresponding public key in the setting of the

# repo) need to be updated.

BRANCH="master"

ORIGIN="kundajelab.github.io"

GITHUB_USERNAME="kundajelab"

TARGET_FOLDER="bpnet/"

# DOCSOURCE is directory containing the Makefile, relative to the directory

# containing this bash script.

DOCSOURCE=`pwd`/docs/

# DOCHTML is where mkdocs is configured to save the output HTML

DOCHTML=$DOCSOURCE/site

# tmpdir to which built docs will be copied

STAGING=/tmp/${GITHUB_USERNAME}-docs

# Build docs only if ci-runner is testing this branch:

BUILD_DOCS_FROM_BRANCH="master"

# ----------------------------------------------------------------------------

#

# END repository-specific configuration. The code below is generic; to use for

# another repo, edit the above settings.

#

# ----------------------------------------------------------------------------

if [[ $CIRCLE_PROJECT_USERNAME != kundajelab ]]; then

    echo "$CIRCLE_PROJECT_USERNAME != kundajelab"

    exit 1

fi

REPO="git@github.com:${GITHUB_USERNAME}/${ORIGIN}.git"

# clone the branch to tmpdir, clean out contents

rm -rf $STAGING

mkdir -p $STAGING

SHA=$(git rev-parse --verify HEAD)

git clone $REPO $STAGING

cd $STAGING

git checkout $BRANCH || git checkout --orphan $BRANCH

# remove the existing target folder

rm -rf ${TARGET_FOLDER}

# copy over the docs to tmpdir

cd ${DOCSOURCE}

cp -r ${DOCHTML} $STAGING/${TARGET_FOLDER}

# commit and push

cd $STAGING

# committing with no changes results in exit 1, so check for that case first.

# if git diff --quiet; then

#    echo "No changes to push -- exiting cleanly"

#     exit 0

# fi

# Ignore branch

# if [[ $CIRCLE_BRANCH != master ]]; then

#     echo "Not pushing docs because not on branch '$BUILD_DOCS_FROM_BRANCH'"

#     exit 0

# fi

# Add, commit, and push

echo ".*" >> .gitignore

git config user.name "Circle-CI-kundajelab"

git config user.email "${GITHUB_USERNAME}@users.noreply.github.com"

git add -A .

git commit --all -m "Updated docs to commit ${SHA}."

echo "Pushing to $REPO:$BRANCH"

git push $REPO $BRANCH &> /dev/null