#!/usr/bin/env bash
set -u
cd "$(dirname "$0")" || exit 1

BUILD_ONLY=0
[[ "${1:-}" == "--build-only" ]] && BUILD_ONLY=1

prop() { sed -n "s/^$1=//p" gradle.properties | tail -n 1 | tr -d '\r'; }

[[ -f gradle.properties ]] || { echo "[ERROR] gradle.properties tidak ditemukan."; exit 1; }

MOD_VERSION="$(prop mod_version)"
MC_VERSION="$(prop minecraft_version)"
ARCHIVES_BASE_NAME="$(prop archives_base_name)"
ARCHIVES_BASE_NAME="${ARCHIVES_BASE_NAME:-item-despawn-timer}"

[[ -n "$MOD_VERSION" && -n "$MC_VERSION" ]] || { echo "[ERROR] Versi tidak lengkap di gradle.properties."; exit 1; }

PROJECT_VERSION="${MOD_VERSION}+mc${MC_VERSION}"
JAR_PATH="$PWD/build/libs/${ARCHIVES_BASE_NAME}-${PROJECT_VERSION}.jar"

echo "============================================"
echo " Item Despawn Timer - Fabric $MC_VERSION"
echo " Version: $PROJECT_VERSION"
echo "============================================"

git_integration() {
    command -v git >/dev/null || { echo "[ERROR] Git tidak ditemukan."; return 2; }
    git rev-parse --is-inside-work-tree >/dev/null 2>&1 || { echo "[ERROR] Bukan Git repository."; return 2; }

    if [[ -n "$(git status --porcelain)" ]]; then
        git status --short
        default="Update Item Despawn Timer v$PROJECT_VERSION"
        read -r -p "Commit message [$default]: " msg
        msg="${msg:-$default}"
        git add -A || return 2
        git commit -m "$msg" || return 2
    else
        echo "[INFO] Tidak ada perubahan source untuk di-commit."
    fi

    branch="$(git branch --show-current)"
    [[ -n "$branch" ]] || { echo "[ERROR] Branch aktif tidak ditemukan."; return 2; }
    git remote get-url origin >/dev/null 2>&1 || { echo "[ERROR] Remote origin belum dikonfigurasi."; return 2; }

    local round=1
    while true; do
        local attempt=1
        while (( attempt <= 3 )); do
            echo "[INFO] Push attempt $attempt/3 (round $round)..."
            git push origin "$branch" && return 0
            ((attempt++))
            (( attempt <= 3 )) && sleep 2
        done
        read -r -p "Push gagal 3x. Coba 3x lagi? [y/N]: " again
        [[ "$again" =~ ^[Yy]$ ]] || return 2
        ((round++))
    done
}

if (( BUILD_ONLY == 0 )) && [[ -f "$JAR_PATH" ]]; then
    echo
    echo "[INFO] Build untuk versi $PROJECT_VERSION sudah tersedia:"
    echo "       $JAR_PATH"
    while true; do
        read -r -p "[C] Compile ulang / [G] Git saja / [Q] Keluar: " action
        case "$action" in
            C|c) break ;;
            G|g) git_integration; exit $? ;;
            Q|q) exit 0 ;;
        esac
    done
fi

command -v java >/dev/null || { echo "[ERROR] Java tidak ditemukan."; exit 1; }
JAVA_MAJOR="$(java --version 2>&1 | head -n1 | sed -E 's/.* ([0-9]+)(\..*)? .*/\1/')"
[[ "$JAVA_MAJOR" =~ ^[0-9]+$ ]] && (( JAVA_MAJOR >= 25 )) || { echo "[ERROR] Java 25+ diperlukan."; exit 1; }

chmod +x gradlew 2>/dev/null || true
./gradlew clean build || { echo "[ERROR] Build gagal."; exit 1; }

[[ -f "$JAR_PATH" ]] || {
    echo "[ERROR] Build selesai tetapi JAR yang diharapkan tidak ditemukan:"
    echo "        $JAR_PATH"
    ls -1 build/libs/*.jar 2>/dev/null || true
    exit 1
}

echo
echo "BUILD SUCCESS"
echo "JAR: $JAR_PATH"
(( BUILD_ONLY == 1 )) && exit 0

read -r -p "Commit dan push perubahan ke Git? [y/N]: " push
[[ "$push" =~ ^[Yy]$ ]] && git_integration
exit $?