#!/bin/bash
set -e

# 1. 记录起始时间（用 %s 取整数秒，避免小数运算依赖 bc）
start_seconds=$(date +%s)
start_datetime=$(date +"%Y-%m-%d %H:%M:%S")
echo "========================================"
echo "Build started at: $start_datetime"
echo "========================================"


# 2. 构建前端（统计耗时）
echo -e "\n[1/2] Starting frontend build..."
frontend_start=$(date +%s)  # 前端开始时间（整数秒）

chmod +x ./.build/build-assets.sh
./.build/build-assets.sh

# 计算前端耗时（整数秒，直接用 bash 内置减法，无需 bc）
frontend_end=$(date +%s)
frontend_duration=$((frontend_end - frontend_start))
echo "[1/2] Frontend build completed! (Time: ${frontend_duration}s)"


# 3. 构建后端（统计耗时）
echo -e "\n[2/2] Starting backend build..."
backend_start=$(date +%s)  # 后端开始时间（整数秒）

# 获取 Git 版本和 Commit
export COMMIT_SHA=$(git rev-parse --short HEAD)
export VERSION=$(git describe --tags)
echo "Backend version: $VERSION, Commit: $COMMIT_SHA"

# 编译 Go 后端
go build -a -o cloudreve \
    -ldflags "-s -w -X 'github.com/cloudreve/Cloudreve/v4/application/constants.BackendVersion=$VERSION' -X 'github.com/cloudreve/Cloudreve/v4/application/constants.LastCommit=$COMMIT_SHA'"

# 计算后端耗时
backend_end=$(date +%s)
backend_duration=$((backend_end - backend_start))
echo "[2/2] Backend build completed! (Time: ${backend_duration}s)"


# 4. 总耗时统计（整数秒，直观易懂）
end_seconds=$(date +%s)
total_duration=$((end_seconds - start_seconds))
end_datetime=$(date +"%Y-%m-%d %H:%M:%S")

echo -e "\n========================================"
echo "Build successfully completed!"
echo "Total duration: ${total_duration}s"
echo "Started at: $start_datetime"
echo "Ended at:   $end_datetime"
echo "========================================"