init: 第一次提交

- 以实现登录获取个人信息和课程
- 实现了获取视频记录
- 实现了学习接口

pkg/common/rand.go

@@ -0,0 +1,22 @@
+package common
+
+import (
+	"math/rand"
+	"time"
+)
+
+// Rand 生成指定长度的随机字符串，字符集为 [0-9a-zA-Z]
+func Rand(length int) string {
+	const charset = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
+
+	seededRand := rand.New(rand.NewSource(time.Now().UnixNano()))
+	b := make([]byte, length)
+	for i := range b {
+		b[i] = charset[seededRand.Intn(len(charset))]
+	}
+	return string(b)
+}
+
+func RandFloat64() float64 {
+	return rand.Float64()
+}

pkg/log/func.go

@@ -0,0 +1,73 @@
+package log
+
+import (
+	"go.uber.org/zap"
+)
+
+// GetLogger 获取原生 zap logger
+func GetLogger() *zap.Logger {
+	return logger
+}
+
+// Sync 刷新缓冲区
+func Sync() {
+	_ = logger.Sync()
+}
+
+// ============================================================================
+// 结构化日志 (Structured Logging) - 推荐高性能场景使用
+// 用法: log.Info("user login", zap.String("username", "admin"))
+// ============================================================================
+
+func Debug(msg string, fields ...zap.Field) {
+	logger.Debug(msg, fields...)
+}
+
+func Info(msg string, fields ...zap.Field) {
+	logger.Info(msg, fields...)
+}
+
+func Warn(msg string, fields ...zap.Field) {
+	logger.Warn(msg, fields...)
+}
+
+func Error(msg string, fields ...zap.Field) {
+	logger.Error(msg, fields...)
+}
+
+func Fatal(msg string, fields ...zap.Field) {
+	logger.Fatal(msg, fields...)
+}
+
+func Panic(msg string, fields ...zap.Field) {
+	logger.Panic(msg, fields...)
+}
+
+// ============================================================================
+// 格式化日志 (Sugared Logging) - 方便使用，类似 fmt.Printf
+// 用法: log.Infof("user %s login failed, count: %d", "admin", 3)
+// ============================================================================
+
+func Debugf(template string, args ...interface{}) {
+	sugar.Debugf(template, args...)
+}
+
+func Infof(template string, args ...interface{}) {
+	sugar.Infof(template, args...)
+}
+
+func Warnf(template string, args ...interface{}) {
+	sugar.Warnf(template, args...)
+}
+
+func Errorf(template string, args ...interface{}) {
+	sugar.Errorf(template, args...)
+}
+
+func Fatalf(template string, args ...interface{}) {
+	sugar.Fatalf(template, args...)
+}
+
+func Panicf(template string, args ...interface{}) {
+	sugar.Panicf(template, args...)
+}

pkg/log/log.go

@@ -0,0 +1,105 @@
+package log
+
+import (
+	"os"
+	"time"
+
+	"go.uber.org/zap"
+	"go.uber.org/zap/zapcore"
+	"gopkg.in/natefinch/lumberjack.v2"
+)
+
+var (
+	logger *zap.Logger
+	sugar  *zap.SugaredLogger
+)
+
+// 通用时间格式
+const (
+	TimeFormatDate     = "2006-01-02"
+	TimeFormatDateTime = "2006-01-02 15:04:05"
+)
+
+type Config struct {
+	Level     string
+	Filepath  string
+	MaxSizeMB int
+	MaxAgeDay int
+	Backups   int
+	Compress  bool
+}
+
+func init() {
+	encoderConfig := zap.NewDevelopmentEncoderConfig()
+	core := zapcore.NewCore(
+		zapcore.NewConsoleEncoder(encoderConfig),
+		zapcore.AddSync(os.Stdout),
+		zap.DebugLevel,
+	)
+
+	logger = zap.New(core, zap.AddCaller(), zap.AddCallerSkip(1))
+	sugar = logger.Sugar()
+}
+
+func Init(cfg Config) {
+	var zapLevel zapcore.Level
+
+	// 日志等级解析
+	switch cfg.Level {
+	case "debug":
+		zapLevel = zap.DebugLevel
+	case "info":
+		zapLevel = zap.InfoLevel
+	case "warning", "warn":
+		zapLevel = zap.WarnLevel
+	case "error":
+		zapLevel = zap.ErrorLevel
+	default:
+		zapLevel = zap.InfoLevel
+	}
+
+	// lumberjack 日志切割配置
+	writeSyncer := zapcore.AddSync(&lumberjack.Logger{
+		Filename:   cfg.Filepath,
+		MaxSize:    cfg.MaxSizeMB,
+		MaxBackups: cfg.Backups,
+		MaxAge:     cfg.MaxAgeDay,
+		Compress:   cfg.Compress,
+	})
+
+	// 基础编码配置 (提取公共部分)
+	baseEencoderConfig := zapcore.EncoderConfig{
+		TimeKey:       "time",
+		LevelKey:      "level",
+		NameKey:       "logger",
+		CallerKey:     "caller",
+		MessageKey:    "msg",
+		StacktraceKey: "Stacktrace",
+		LineEnding:    zapcore.DefaultLineEnding,
+		EncodeLevel:   zapcore.CapitalLevelEncoder,
+		EncodeTime: func(t time.Time, enc zapcore.PrimitiveArrayEncoder) {
+			enc.AppendString(t.Format(TimeFormatDateTime))
+		},
+		EncodeDuration: zapcore.StringDurationEncoder,
+		EncodeCaller:   zapcore.ShortCallerEncoder,
+	}
+
+	// 1. 控制台编码器（开启颜色）
+	consoleEncoderConfig := baseEencoderConfig
+	consoleEncoderConfig.EncodeLevel = zapcore.CapitalColorLevelEncoder
+	encoderConsole := zapcore.NewConsoleEncoder(consoleEncoderConfig)
+
+	// 2.文件编码器（json 格式, 无色）
+	fileEncoderConfig := baseEencoderConfig
+	fileEncoderConfig.EncodeLevel = zapcore.CapitalLevelEncoder
+	encoderJson := zapcore.NewJSONEncoder(fileEncoderConfig)
+
+	core := zapcore.NewTee(
+		zapcore.NewCore(encoderJson, writeSyncer, zapLevel),
+		zapcore.NewCore(encoderConsole, zapcore.AddSync(os.Stdout), zapLevel))
+
+	logger = zap.New(core, zap.AddCaller(), zap.AddCallerSkip(1))
+	sugar = logger.Sugar()
+
+	zap.ReplaceGlobals(logger)
+}

pkg/request/client.go

@@ -0,0 +1,71 @@
+package request
+
+import (
+	"crypto/tls"
+	"net/http"
+	"time"
+
+	"resty.dev/v3"
+)
+
+var (
+	NoRedirectClient *resty.Client
+	RestyClient      *resty.Client
+)
+
+const (
+	DefaultUserAgent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/140.0.0.0 Safari/537.36 Edg/140.0.0.0"
+	DefaultTimeout   = 10 * time.Second
+)
+
+type Config struct {
+	Timeout   time.Duration
+	Proxy     string
+	Debug     bool
+	UserAgent string
+	VerifySSL bool
+}
+
+func DefaultConfg() *Config {
+	return &Config{
+		Timeout:   DefaultTimeout,
+		UserAgent: DefaultUserAgent,
+		VerifySSL: true,
+		Debug:     false,
+	}
+}
+
+// NewClient 创建一个标准的 Resty 客户端
+func NewClient(cfg *Config) *resty.Client {
+	if cfg == nil {
+		cfg = DefaultConfg()
+	}
+
+	client := resty.New()
+	client.SetHeader("User-Agent", cfg.UserAgent)
+	client.SetTimeout(cfg.Timeout)
+	client.SetRetryCount(3)
+
+	client.SetTLSClientConfig(&tls.Config{
+		InsecureSkipVerify: !cfg.VerifySSL,
+	})
+
+	if cfg.Proxy != "" {
+		client.SetProxy(cfg.Proxy)
+	}
+
+	return client
+}
+
+// NewNoRedirectClient 创建一个禁止重定向的客户端
+func NewNoRedirectClient(cfg *Config) *resty.Client {
+	client := NewClient(cfg)
+
+	client.SetRedirectPolicy(
+		resty.RedirectPolicyFunc(func(req *http.Request, via []*http.Request) error {
+			return http.ErrUseLastResponse
+		}),
+	)
+
+	return client
+}