#!/bin/sh
set -eu

SCRIPT_NAMES="applypatch-msg commit-msg fsmonitor-watchman post-update \
pre-applypatch pre-commit pre-merge-commit prepare-commit-msg pre-push \
pre-rebase pre-receive post-commit post-checkout post-merge push-to-checkout \
sendemail-validate update"

DEVEL=0
GIT_TOPDIR=$(git rev-parse --show-toplevel 2>/dev/null)
GIT_OBS_HOOKS_DEBUG=${GIT_OBS_HOOKS_DEBUG:-${GIT_TRACE:-0}}
# shellcheck disable=SC2181
if [ $? -ne 0 ]; then
    echo "ERROR: Couldn't determine git top directory"
    exit 1
fi

debug_msg() {
    if [ "${GIT_OBS_HOOKS_DEBUG}" != "1" ]; then
        return
    fi
    echo "$@" >&1
}

while getopts "d" flag; do
    case "${flag}" in
        d)
            DEVEL=1
       ;;
        \?)
            echo "Invalid option: $OPTARG" && exit 1
       ;;
    esac
done

if [ $DEVEL -eq 1 ] ; then
    HOOKS_TOPDIR="$HOME/.local/share/git-obs-hooks"
	debug_msg "HOOKS_TOPDIR = $HOOKS_TOPDIR and exists: $(test -d "$HOOKS_TOPDIR")"
    if [ ! -d "${HOOKS_TOPDIR}" ] ; then
        mkdir -p "$HOOKS_TOPDIR"
        ( cd "$(dirname "$(readlink -f "$0")")"
        for script in ${SCRIPT_NAMES} ; do
            ln -srf git-obs-hook-template "$HOOKS_TOPDIR/$script"
            install -d "${HOOKS_TOPDIR}/${script}.d"
            if [ -d "./scripts/${script}.d" ] ; then
                for inscript in ./scripts/"${script}".d/* ; do
                    ln -srf "${inscript}" "${HOOKS_TOPDIR}/${script}.d/$(basename "${inscript}")"
                done
            fi
        done
        )
    fi
else
    HOOKS_TOPDIR="/usr/share/git-obs-hooks"
fi


for hook_path in "${HOOKS_TOPDIR}"/*; do
    if [ ! -x "${hook_path}" ] || [ -d "${hook_path}" ]; then
        continue
    fi

    hook_name=$(basename "${hook_path}")
    git_hook_path="${GIT_TOPDIR}/.git/hooks/${hook_name}"
    debug_msg "Installing hook ${hook_path} -> ${git_hook_path}"
    ln -sTf "${hook_path}" "${git_hook_path}"
done