wip: 完成 client api 分析

internal/controller/impl.go

@@ -0,0 +1,14 @@
+package controller
+
+import "context"
+
+var (
+	// UserController todo: 可以实现自己的 controller
+	UserController userController
+)
+
+func Init(ctx context.Context) error {
+	UserController = uc{}
+
+	return nil
+}

internal/controller/user.go

@@ -0,0 +1,164 @@
+package controller
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"strings"
+	"time"
+
+	"esway/internal/database/cache"
+	"esway/internal/database/db"
+	"esway/internal/log"
+	"esway/internal/model"
+	"esway/internal/opt"
+	"esway/internal/tool"
+
+	"github.com/loveuer/nf/nft/resp"
+	"github.com/spf13/cast"
+	"gorm.io/gorm"
+)
+
+type userController interface {
+	GetUser(ctx context.Context, id uint64) (*model.User, error)
+	GetUserByToken(ctx context.Context, token string) (*model.User, error)
+	CacheUser(ctx context.Context, user *model.User) error
+	CacheToken(ctx context.Context, token string, user *model.User) error
+	RmToken(ctx context.Context, token string) error
+	RmUserCache(ctx context.Context, id uint64) error
+	DeleteUser(ctx context.Context, target *model.User) error
+}
+
+type uc struct{}
+
+var _ userController = (*uc)(nil)
+
+func (u uc) GetUser(ctx context.Context, id uint64) (*model.User, error) {
+	var (
+		err    error
+		target = new(model.User)
+		key    = fmt.Sprintf("%s:user:id:%d", opt.CachePrefix, id)
+		bs     []byte
+	)
+
+	if opt.EnableUserCache {
+		if bs, err = cache.Client.Get(tool.Timeout(3), key); err != nil {
+			log.Warn(ctx, "controller.GetUser: get user by cache key=%s err=%v", key, err)
+			goto ByDB
+		}
+
+		if err = json.Unmarshal(bs, target); err != nil {
+			log.Warn(ctx, "controller.GetUser: json unmarshal key=%s by=%s err=%v", key, string(bs), err)
+			goto ByDB
+		}
+
+		return target, nil
+	}
+
+ByDB:
+	if err = db.Default.Session(tool.Timeout(3)).
+		Model(&model.User{}).
+		Where("id = ?", id).
+		Take(target).
+		Error; err != nil {
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			// tips: 公开项目需要考虑击穿处理
+			return target, resp.NewError(400, "目标不存在", err, nil)
+		}
+
+		return target, resp.NewError(500, "", err, nil)
+	}
+
+	if opt.EnableUserCache {
+		if err = u.CacheUser(ctx, target); err != nil {
+			log.Warn(ctx, "controller.GetUser: cache user key=%s err=%v", key, err)
+		}
+	}
+
+	return target, nil
+}
+
+func (u uc) GetUserByToken(ctx context.Context, token string) (*model.User, error) {
+	strs := strings.Split(token, ".")
+	if len(strs) != 3 {
+		return nil, fmt.Errorf("controller.GetUserByToken: jwt token invalid, token=%s", token)
+	}
+
+	key := fmt.Sprintf("%s:user:token:%s", opt.CachePrefix, strs[2])
+	bs, err := cache.Client.Get(tool.Timeout(3), key)
+	if err != nil {
+		return nil, err
+	}
+
+	log.Debug(ctx, "controller.GetUserByToken: key=%s cache bytes=%s", key, string(bs))
+
+	userId := cast.ToUint64(string(bs))
+	if userId == 0 {
+		return nil, fmt.Errorf("controller.GetUserByToken: bs=%s cast to uint64 err", string(bs))
+	}
+
+	var op *model.User
+
+	if op, err = u.GetUser(ctx, userId); err != nil {
+		return nil, err
+	}
+
+	return op, nil
+}
+
+func (u uc) CacheUser(ctx context.Context, target *model.User) error {
+	key := fmt.Sprintf("%s:user:id:%d", opt.CachePrefix, target.Id)
+	return cache.Client.Set(tool.Timeout(3), key, target)
+}
+
+func (u uc) CacheToken(ctx context.Context, token string, user *model.User) error {
+	strs := strings.Split(token, ".")
+	if len(strs) != 3 {
+		return fmt.Errorf("controller.CacheToken: jwt token invalid")
+	}
+
+	key := fmt.Sprintf("%s:user:token:%s", opt.CachePrefix, strs[2])
+	return cache.Client.SetEx(tool.Timeout(3), key, user.Id, opt.TokenTimeout)
+}
+
+func (u uc) RmToken(ctx context.Context, token string) error {
+	strs := strings.Split(token, ".")
+	if len(strs) != 3 {
+		return fmt.Errorf("controller.CacheToken: jwt token invalid")
+	}
+
+	key := fmt.Sprintf("%s:user:token:%s", opt.CachePrefix, strs[2])
+	return cache.Client.Del(tool.Timeout(3), key)
+}
+
+func (u uc) RmUserCache(ctx context.Context, id uint64) error {
+	key := fmt.Sprintf("%s:user:id:%d", opt.CachePrefix, id)
+	return cache.Client.Del(tool.Timeout(3), key)
+}
+
+func (u uc) DeleteUser(ctx context.Context, target *model.User) error {
+	var (
+		err      error
+		now      = time.Now()
+		username = fmt.Sprintf("%s@%d", target.Username, now.UnixMilli())
+	)
+
+	if err = db.Default.Session(tool.Timeout(5)).
+		Model(&model.User{}).
+		Where("id = ?", target.Id).
+		Updates(map[string]any{
+			"deleted_at": now.UnixMilli(),
+			"username":   username,
+		}).Error; err != nil {
+		return resp.NewError(500, "", err, nil)
+	}
+
+	if opt.EnableUserCache {
+		if err = u.RmUserCache(ctx, target.Id); err != nil {
+			log.Warn(ctx, "controller.DeleteUser: rm user=%d cache err=%v", target.Id, err)
+		}
+	}
+
+	return nil
+}