#!/usr/bin/env bash
# =============================================================================
#  05-start.sh — 启动后端 Go 服务
#
#  用法:
#    ./05-start.sh           # 按依赖顺序启动全部服务
#    ./05-start.sh <svc>     # 只启动指定服务
#
#  启动顺序（有依赖关系）：
#    openim-server → chat-rpc / admin-rpc → chat-api / admin-api
#    → meetingmsg / livecloud / livestream
#
#  日志文件: .local-dev/logs/<service>.log
#  PID 文件: .local-dev/pids/<service>.pid
# =============================================================================
set -euo pipefail
source "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)/common.sh"
load_env
init_dirs
init_script_log       # ← 脚本执行日志

header "步骤 5 / 5 — 启动后端服务"

TARGET="${1:-all}"

# ── 服务启动配置 ─────────────────────────────────────────────────────────────
# 格式: svc_workdir[name]  svc_args[name]
declare -A svc_workdir=(
  [openim-server]="$ROOT_DIR/open-im-server"
  [chat-rpc]="$ROOT_DIR/chat"
  [admin-rpc]="$ROOT_DIR/chat"
  [chat-api]="$ROOT_DIR/chat"
  [admin-api]="$ROOT_DIR/chat"
  [meetingmsg]="$ROOT_DIR/meetingmsg"
  [livecloud]="$ROOT_DIR/livecloud"
  [livestream]="$ROOT_DIR/livestream"
  [build-server]="$ROOT_DIR/build-server"
)

declare -A svc_args=(
  [openim-server]="-c $ROOT_DIR/open-im-server/config"
  [chat-rpc]="-c $ROOT_DIR/chat/config"
  [admin-rpc]="-c $ROOT_DIR/chat/config"
  [chat-api]="-c $ROOT_DIR/chat/config"
  [admin-api]="-c $ROOT_DIR/chat/config"
  [meetingmsg]=""
  [livecloud]=""
  [livestream]=""
  [build-server]=""
)

declare -A svc_desc=(
  [openim-server]=":10002 (API)  :10001 (MsgGateway WS)"
  [chat-rpc]="内部 RPC"
  [admin-rpc]="内部 RPC"
  [chat-api]=":10008"
  [admin-api]=":10009"
  [meetingmsg]=":8000 (WS)"
  [livecloud]=":8080"
  [livestream]=":8081"
  [build-server]=":8281"
)

_start_one() {
  local svc="$1"
  start_svc "$svc" \
    "$BUILD_DIR/$svc" \
    "${svc_args[$svc]}" \
    "${svc_workdir[$svc]}"
}

# ── 启动全部（有序） ──────────────────────────────────────────────────────────
_start_all() {
  step "第 1 组: openim-server（核心 IM 服务）"
  _start_one openim-server

  info "等待 openim-server 将 RPC 注册到 Etcd... (8s)"
  sleep 8

  step "第 2 组: chat RPC 服务"
  _start_one chat-rpc
  _start_one admin-rpc

  info "等待 chat RPC 注册到 Etcd... (4s)"
  sleep 4

  step "第 3 组: chat API 服务"
  _start_one chat-api
  _start_one admin-api

  step "第 4 组: 业务服务"
  _start_one meetingmsg
  _start_one livecloud
  _start_one livestream
  _start_one build-server

  echo ""
  echo -e "${BOLD}服务汇总：${NC}"
  for svc in openim-server chat-rpc admin-rpc chat-api admin-api meetingmsg livecloud livestream build-server; do
    print_svc_status "$svc" "${svc_desc[$svc]}"
  done

  echo ""
  echo -e "${BOLD}常用地址：${NC}"
  echo "  IM API:        http://localhost:10002"
  echo "  IM WebSocket:  ws://localhost:10001"
  echo "  Chat API:      http://localhost:10008"
  echo "  Admin API:     http://localhost:10009"
  echo "  MeetingMsg WS: ws://localhost:8000"
  echo "  Livecloud:     http://localhost:8080"
  echo "  Livestream:    http://localhost:8081"
  echo "  Build Server:  http://localhost:8281"
  echo ""
  echo -e "${BOLD}查看日志：${NC}"
  echo -e "  ${CYAN}./deploy-test/logs.sh openim-server${NC}"
  echo -e "  ${CYAN}./deploy-test/logs.sh chat-api${NC}"
}

# ── 启动单个 ──────────────────────────────────────────────────────────────────
_start_single() {
  local svc="$1"
  if [[ -z "${svc_workdir[$svc]:-}" ]]; then
    error "未知服务: $svc"
    echo "可用: ${!svc_workdir[*]}"
    exit 1
  fi
  step "启动: $svc"
  _start_one "$svc"
  echo ""
  print_svc_status "$svc" "${svc_desc[$svc]}"
}

# ── 入口 ─────────────────────────────────────────────────────────────────────
if [[ "$TARGET" == "all" ]]; then
  _start_all
else
  _start_single "$TARGET"
fi