package global

import (
	"fmt"
	"github.com/go-redis/redis"
	"github.com/gofrs/uuid"
	"github.com/gogo/protobuf/codec"
	"github.com/tomas-qstarrs/boost/config"
	"github.com/tomas-qstarrs/boost/httpx"
	"github.com/tomas-qstarrs/boost/logger"
	"github.com/tomas-qstarrs/boost/regexp"
	"github.com/tomas-qstarrs/boost/timex"
	"os"
	"os/exec"
	"path/filepath"
	"strings"
	"sync/atomic"
	"time"
)

var (
	// Project is the name of project
	Project string

	// Game is the name of game
	Game string

	// Process is the name of type name of process
	Process string

	// ProcessID is the id of process
	ProcessID string

	// ProcessTime is the time of process
	ProcessTime int64

	// ProcessSeqID is the seq id of process
	ProcessSeqID atomic.Int64

	// Runtime is the value of Runtime
	Runtime string

	// Cluster is the cluster of project
	Cluster string

	// Instance is the instance of project
	Instance string

	// ExecutableDirectory is the path of Executable
	ExecutableDirectory string

	// WorkingDirectory is the path of CWD
	WorkingDirectory string

	// ProjectDirectory is the path of project `qstar_server`
	ProjectDirectory string

	// ConfigDirectory is the path of config
	ConfigDirectory string

	// LogDirectory is the path of log
	LogDirectory string

	// Config is the config of project
	Configs *config.Config

	// Timex is the timex of project
	Timex *timex.Timex

	// Logger is the logger of project
	//Logger *logger.Logger

	// TALogger is the ta logger of project
	TALogger *logger.Logger

	// Codec is the codec of project
	Codec codec.Codec

	// PlainCodec is the plain codec
	PlainCodec codec.Codec

	// Mock is the mock mode
	Mock bool

	// HTTP is the http client
	HTTPClient *httpx.Client

	// RedisClient is the redis client
	RedisClient *redis.Client

	Regexp *regexp.Regexp
)

func init() {
	Project = getProject()
	Game = getGame()
	Process = getProcess()
	ProcessID = getProcessID()
	Runtime = getRuntime()
	Cluster = getCluster()
	Instance = getInstance()
	ExecutableDirectory = getExecutableDirectory()
	WorkingDirectory = getWorkingDirectory()
	ProjectDirectory = getProjectDirectory()
	ConfigDirectory = getConfigDirectory()
	//Timex = getTimex()
	//Logger = getLogger()
	ProcessTime = getProcessTime()
	HTTPClient = getHTTPClient()
	RedisClient = getRedisClient()
}

func getProject() string {
	return "server"
}

func getGame() string {
	return "SLOTS"
}

func getProcess() string {
	args := os.Args
	if len(args) < 2 {
		return ""
	}
	return args[1]
}

func getProcessID() string {
	return uuid.Must(uuid.NewV4()).String()
}

func getProcessTime() int64 {
	return timex.Now().Unix()
}

func getRuntime() string {
	s := os.Getenv("SERVER_RUNTIME")
	s = config.GetString("runtime")
	return strings.ToLower(s)
}

func getCluster() string {
	return os.Getenv("server_CLUSTER")
}

func getInstance() string {
	return os.Getenv("server_INSTANCE")
}

func getExecutableDirectory() string {
	if _, err := os.Stat(os.Args[0]); err == nil {
		return filepath.Dir(os.Args[0])
	}
	path, err := exec.LookPath(os.Args[0])
	if err != nil {
		panic(err)
	}
	return filepath.Dir(path)
}

func getWorkingDirectory() string {
	dir, err := os.Getwd()
	if err != nil {
		panic(err)
	}
	return dir
}

func getProjectDirectory() string {
	// MatchParentDir returns target's directory's full path,
	// returning error if `dir`'s parent dir names don't match `target`
	matchParentDir := func(dir string, target string) (string, error) {
		var currentDir string
		var file string
		for {
			currentDir = filepath.Dir(dir)
			file = filepath.Base(dir)

			// Match target directory
			if file == target {
				return dir, nil
			}

			// Reach the top of directory
			if currentDir == dir {
				return "", fmt.Errorf(
					"diretory `%s` doesn't match `%s`", dir, target)
			}

			dir = currentDir
		}
	}

	dir, err := matchParentDir(WorkingDirectory, Project)
	if err != nil {
		dir, err = os.Getwd()
		if err != nil {
			panic(err)
		}
	}
	return dir
}

func getConfigDirectory() string {
	return filepath.Join(ProjectDirectory, "resource/config")
}

//func getTimex() *timex.Timex {
//	tm := timex.Init(config.JSON("timex"))
//	dogfish.LocateAt(timex.TimeLocation())
//	return tm
//}

func getHTTPClient() *httpx.Client {
	c := httpx.NewClient(httpx.ClientConfig{
		Retry:                 config.GetInt64("http.retry"),
		Timeout:               config.GetDuration("http.timeout") * time.Second,
		Proxy:                 config.GetString("http.proxy"),
		DialerTimeout:         config.GetDuration("http.dialerTimeout") * time.Second,
		DialerKeepAlive:       config.GetDuration("http.dialerKeepAlive") * time.Second,
		ForceAttemptHTTP2:     config.GetBool("http.forceAttemptHTTP2"),
		MaxIdleConns:          config.GetInt("http.maxIdleConns"),
		MaxIdleConnsPerHost:   config.GetInt("http.maxIdleConnsPerHost"),
		MaxConnsPerHost:       config.GetInt("http.maxConnsPerHost"),
		IdleConnTimeout:       config.GetDuration("http.idleConnTimeout") * time.Second,
		TLSHandshakeTimeout:   config.GetDuration("http.tlsHandshakeTimeout") * time.Second,
		ResponseHeaderTimeout: config.GetDuration("http.responseHeaderTimeout") * time.Second,
		ExpectContinueTimeout: config.GetDuration("http.expectContinueTimeout") * time.Second,
	})

	return c
}

func getRedisClient() *redis.Client {
	c := redis.NewClient(&redis.Options{
		Addr:               config.GetString("redis.player.addr"),
		Password:           config.GetString("redis.player.password"),
		DB:                 config.GetInt("redis.player.db"),
		PoolSize:           config.GetInt("redis.player.poolSize"),
		MinIdleConns:       config.GetInt("redis.player.minIdleConns"),
		MaxConnAge:         config.GetDuration("redis.player.maxConnAge") * time.Second,
		PoolTimeout:        config.GetDuration("redis.player.poolTimeout") * time.Second,
		IdleTimeout:        config.GetDuration("redis.player.idleTimeout") * time.Second,
		IdleCheckFrequency: config.GetDuration("redis.player.idleCheckFrequency") * time.Second,
	})
	return c
}