package service

import (
	"bytes"
	"fmt"
	"github.com/1Panel-dev/1Panel/backend/app/model"
	"github.com/1Panel-dev/1Panel/backend/buserr"
	"github.com/1Panel-dev/1Panel/backend/constant"
	"github.com/1Panel-dev/1Panel/backend/global"
	"github.com/1Panel-dev/1Panel/backend/utils/docker"
	"github.com/1Panel-dev/1Panel/backend/utils/files"
	"github.com/subosito/gotenv"
	"io"
	"os"
	"os/exec"
	"path"
	"strings"
)

func buildRuntime(runtime *model.Runtime, oldImageID string) {
	runtimePath := path.Join(constant.RuntimeDir, runtime.Type, runtime.Name)
	composePath := path.Join(runtimePath, "docker-compose.yml")
	logPath := path.Join(runtimePath, "build.log")

	logFile, err := os.OpenFile(logPath, os.O_CREATE|os.O_WRONLY|os.O_TRUNC, 0666)
	if err != nil {
		fmt.Println("Failed to open log file:", err)
		return
	}
	defer func() {
		_ = logFile.Close()
	}()

	cmd := exec.Command("docker-compose", "-f", composePath, "build")
	multiWriterStdout := io.MultiWriter(os.Stdout, logFile)
	cmd.Stdout = multiWriterStdout
	var stderrBuf bytes.Buffer
	multiWriterStderr := io.MultiWriter(&stderrBuf, logFile, os.Stderr)
	cmd.Stderr = multiWriterStderr

	err = cmd.Run()
	if err != nil {
		runtime.Status = constant.RuntimeError
		runtime.Message = buserr.New(constant.ErrImageBuildErr).Error() + ":" + stderrBuf.String()
	} else {
		runtime.Status = constant.RuntimeNormal
		runtime.Message = ""
		if oldImageID != "" {
			client, err := docker.NewClient()
			if err == nil {
				newImageID, err := client.GetImageIDByName(runtime.Image)
				if err == nil && newImageID != oldImageID {
					global.LOG.Infof("delete imageID [%s] ", oldImageID)
					if err := client.DeleteImage(oldImageID); err != nil {
						global.LOG.Errorf("delete imageID [%s] error %v", oldImageID, err)
					} else {
						global.LOG.Infof("delete old image success")
					}
				}
			} else {
				global.LOG.Errorf("delete imageID [%s] error %v", oldImageID, err)
			}
		}
	}
	_ = runtimeRepo.Save(runtime)
}

func handleParams(image, runtimeType, runtimeDir string, params map[string]interface{}) (composeContent []byte, envContent []byte, forms []byte, err error) {
	fileOp := files.NewFileOp()
	composeContent, err = fileOp.GetContent(path.Join(runtimeDir, "docker-compose.yml"))
	if err != nil {
		return
	}
	env, err := gotenv.Read(path.Join(runtimeDir, ".env"))
	if err != nil {
		return
	}
	forms, err = fileOp.GetContent(path.Join(runtimeDir, "config.json"))
	if err != nil {
		return
	}
	params["IMAGE_NAME"] = image
	if runtimeType == constant.RuntimePHP {
		if extends, ok := params["PHP_EXTENSIONS"]; ok {
			if extendsArray, ok := extends.([]interface{}); ok {
				strArray := make([]string, len(extendsArray))
				for i, v := range extendsArray {
					strArray[i] = strings.ToLower(fmt.Sprintf("%v", v))
				}
				params["PHP_EXTENSIONS"] = strings.Join(strArray, ",")
			}
		}
	}
	newMap := make(map[string]string)
	handleMap(params, newMap)
	for k, v := range newMap {
		env[k] = v
	}
	envStr, err := gotenv.Marshal(env)
	if err != nil {
		return
	}
	if err = gotenv.Write(env, path.Join(runtimeDir, ".env")); err != nil {
		return
	}
	envContent = []byte(envStr)
	return
}