#!/bin/bash
# commit-msg: Version in Commit-Message aktualisieren und Changelog-Eintrag prependen (nur dev-Branch)

branch=$(git symbolic-ref --short HEAD 2>/dev/null)
[[ "$branch" != "dev" ]] && exit 0

root=$(git rev-parse --show-toplevel)
cd "$root"

# Aktuelle Version aus addon.xml (bereits vom pre-commit Hook hochgezaehlt)
version=$(grep -oP 'version="\K[0-9]+\.[0-9]+\.[0-9]+(\.[0-9]+)?[^"]*' addon/addon.xml | head -1)

# Commit-Message: alte Versionsnummern durch aktuelle ersetzen
msg=$(cat "$1")
updated_msg=$(echo "$msg" | sed -E "s/bump to [0-9]+\.[0-9]+\.[0-9]+(\.[0-9]+)?[^ ]*/bump to ${version}/g")
echo "$updated_msg" > "$1"

today=$(date +%Y-%m-%d)

# Changelog-Eintrag aufbauen
{
    echo "## ${version} - ${today}"
    echo ""
    while IFS= read -r line; do
        [[ -z "$line" ]] && continue
        echo "- ${line}"
    done <<< "$updated_msg"
    echo ""
    cat CHANGELOG-DEV.md
} > /tmp/changelog_new.md

mv /tmp/changelog_new.md CHANGELOG-DEV.md
git add CHANGELOG-DEV.md