#!/bin/bash

set -euf -o pipefail +x

scripts=$(dirname $0)
# shellcheck source=jenkins-helpers.sh
. $scripts/jenkins-helpers.sh

convert_args_to_variables "$@"

obligatory_variables ci_bot project pw_token out_dir
declare              ci_bot project pw_token out_dir

verbose="${verbose-true}"

if $verbose; then
    set -x
fi

(set +x; pw_init "$project" "$pw_token")

# Delete patches from the queue bundle.  The fact that we are here means
# that the jenkins queue is empty, and no more patches will be tested.
# This can happen if a new version of series was uploaded and we tested
# a different top-of-series patch.
# We avoid deleting and re-creatthe queued bundles to conserve bundle IDs.
queued_name=$(pw_bundle_name queued "$ci_bot")
queued_id=$(pw_bundle_id "$project" "$queued_name" || true)
while [ "$queued_id" != "" ]; do
    patch_id=$(pw_get_patch_from_bundle_or_series \
		   "$project" bundle "$queued_id" 0)
    git -C "$project" pw bundle remove -f yaml "$queued_id" "$patch_id" &
    if ! wait $!; then
	# "bundle remove" will refuse to delete the last patch.
	break
    fi
done

triggered_name=$(pw_bundle_name triggered "$ci_bot")
triggered_id=$(pw_bundle_id "$project" "$triggered_name" || true)

yaml=$(mktemp)
trap "rm -f $yaml" EXIT

git -C "$project" pw series list -f yaml > "$yaml"
mkdir -p "$out_dir"

len=$(shyaml get-length < "$yaml")
i=$len
j=0
# Go through series with the oldest first.
while [ "$i" -gt "0" ]; do
    i=$(($i - 1 ))
    series_id=$(shyaml get-value $i.id < "$yaml")

    if ! pw_series_complete_p "$project" "$series_id"; then
	continue
    fi

    num_patch=0
    while true; do
	patch_id=$(pw_get_patch_from_bundle_or_series \
		       "$project" series "$series_id" "$num_patch" || true)
	if [ "$patch_id" = "" ]; then
	    break
	fi

	if ! pw_bundle_has_patch_p "$project" "$triggered_id" "$patch_id"; then
	    break
	fi
	num_patch=$(($num_patch + 1))
    done

    if [ "$patch_id" = "" ]; then
	continue
    fi

    j=$(($j + 1))
    cat > "$out_dir/trigger-precommit-$project-$j-$series_id" <<EOF
${project}_git=pw://series/$series_id
EOF

    pw_ci_bot_bundle_check_and_add \
	"$project" queued "$ci_bot" "$patch_id" true
done

echo "Processed $len series and created $j pre-commit triggers"