#!/bin/bash

# ============================================================
# frps-console 部署入口（前置引导脚本）
# 此脚本固定在 main 分支，永不变化。
# 职责：引导用户选择通道，拉取对应分支的 deploy.sh 并执行
# 
# 用法:
#   curl -sSL https://git.whitetop.xyz/.../run-deploy.sh | sudo bash
#   curl -sSL https://git.whitetop.xyz/.../run-deploy.sh | sudo bash -s -- --channel preview
# ============================================================

set -e

if [ -t 1 ]; then
    RED='\033[0;31m'; GREEN='\033[0;32m'; YELLOW='\033[1;33m'
    BLUE='\033[0;34m'; CYAN='\033[0;36m'; MAGENTA='\033[0;35m'; NC='\033[0m'
else
    RED=''; GREEN=''; YELLOW=''; BLUE=''; CYAN=''; MAGENTA=''; NC=''
fi

print_info() { echo -e "${BLUE}[INFO]${NC} $1"; }
print_error() { echo -e "${RED}[✗]${NC} $1"; }

REPO_URL="https://git.whitetop.xyz/lxh2875931338/frps-console.git"
WORK_DIR="/tmp/frps-console-deploy"
CHANNEL=""
BRANCH=""

parse_args() {
    for arg in "$@"; do
        case $arg in
            --channel)
                shift; CHANNEL="$1"
                ;;
            --channel=*)
                CHANNEL="${arg#*=}"
                ;;
            --help|-h)
                echo "用法: curl .../run-deploy.sh | sudo bash -s -- [选项]"
                echo ""
                echo "选项:"
                echo "  --channel lts       使用 LTS 通道 (main 分支)"
                echo "  --channel preview   使用 Preview 通道 (test 分支)"
                echo "  --help, -h          显示帮助信息"
                exit 0
                ;;
            *)
                print_error "未知选项: $arg"
                echo "使用 --help 查看帮助"
                exit 1
                ;;
        esac
    done
}

select_channel() {
    if [ -n "$CHANNEL" ]; then
        if [ "$CHANNEL" != "lts" ] && [ "$CHANNEL" != "preview" ]; then
            print_error "无效通道: $CHANNEL (仅支持 lts / preview)"
            exit 1
        fi
        BRANCH="$([ "$CHANNEL" = "preview" ] && echo "test" || echo "main")"
        print_info "使用命令行参数: ${CHANNEL} 通道 (${BRANCH} 分支)"
        return
    fi

    echo ""
    echo -e "${CYAN}请选择部署通道:${NC}"
    echo "  1. LTS (稳定版，生产推荐) [默认] → main 分支"
    echo "  2. Preview (技术预览版，包含新特性) → test 分支"
    echo ""
    read -p "请选择 [1]: " CHANNEL_INPUT </dev/tty
    CHANNEL_INPUT=${CHANNEL_INPUT:-1}
    case $CHANNEL_INPUT in
        1|"") CHANNEL="lts"; BRANCH="main" ;;
        2) CHANNEL="preview"; BRANCH="test" ;;
        *) print_error "无效选择"; exit 1 ;;
    esac
    print_info "已选择: ${CHANNEL} 通道 (${BRANCH} 分支)"
}

fetch_and_run() {
    local deploy_url="https://git.whitetop.xyz/lxh2875931338/frps-console/raw/${BRANCH}/deploy.sh"
    echo ""
    echo -e "${CYAN}▶ 从 ${BRANCH} 分支拉取 deploy.sh...${NC}"
    rm -rf "$WORK_DIR"
    mkdir -p "$WORK_DIR"
    cd "$WORK_DIR"
    if ! curl -sSL -o deploy.sh "$deploy_url"; then
        print_error "无法下载 deploy.sh: $deploy_url"
        exit 1
    fi
    chmod +x deploy.sh
    echo -e "${GREEN}[✓] deploy.sh 已拉取${NC}"
    echo ""
    echo -e "${CYAN}▶ 执行部署脚本...${NC}"
    echo ""
    export DEPLOY_CHANNEL="$CHANNEL"
    export DEPLOY_BRANCH="$BRANCH"
    exec ./deploy.sh "$@"
}

main() {
    clear 2>/dev/null || true
    echo -e "${MAGENTA}════════════════════════════════════════════════════════${NC}"
    echo -e "${MAGENTA}  frps-console 部署入口${NC}"
    echo -e "${MAGENTA}════════════════════════════════════════════════════════${NC}"
    echo ""
    parse_args "$@"
    select_channel
    fetch_and_run "$@"
}

main "$@"