Files
services/chats/handler/chats.go
2021-05-07 18:01:26 +01:00

127 lines
2.4 KiB
Go

package handler
import (
"context"
"fmt"
"sort"
"strings"
"time"
pb "github.com/micro/services/chats/proto"
"github.com/micro/services/pkg/tenant"
"github.com/micro/micro/v3/service/errors"
)
var (
ErrMissingID = errors.BadRequest("MISSING_ID", "Missing ID")
ErrMissingAuthorID = errors.BadRequest("MISSING_AUTHOR_ID", "Missing Author ID")
ErrMissingText = errors.BadRequest("MISSING_TEXT", "Missing text")
ErrMissingChatID = errors.BadRequest("MISSING_CHAT_ID", "Missing Chat ID")
ErrMissingUserIDs = errors.BadRequest("MISSING_USER_IDs", "Two or more user IDs are required")
ErrNotFound = errors.NotFound("NOT_FOUND", "Chat not found")
)
type Chats struct {
Time func() time.Time
}
type Chat struct {
ID string
UserIDs []string
CreatedAt time.Time
}
type Message struct {
ID string
AuthorID string
ChatID string
Text string
SentAt time.Time
}
func ParseTime(v string) time.Time {
t, err := time.Parse(time.RFC3339Nano, v)
if err == nil {
return t
}
t, err = time.Parse(time.RFC3339, v)
if err == nil {
return t
}
return time.Time{}
}
func (m *Message) Serialize() *pb.Message {
return &pb.Message{
Id: m.ID,
AuthorId: m.AuthorID,
ChatId: m.ChatID,
Text: m.Text,
SentAt: m.SentAt.Format(time.RFC3339Nano),
}
}
func (c *Chat) Index(ctx context.Context) string {
sort.Strings(c.UserIDs)
users := strings.Join(c.UserIDs, "-")
key := fmt.Sprintf("chatByUserIDs:%s", users)
t, ok := tenant.FromContext(ctx)
if !ok {
return key
}
return fmt.Sprintf("%s/%s", t, key)
}
func (c *Chat) Key(ctx context.Context) string {
key := fmt.Sprintf("chat:%s", c.ID)
t, ok := tenant.FromContext(ctx)
if !ok {
return key
}
return fmt.Sprintf("%s/%s", t, key)
}
func (m *Message) Key(ctx context.Context) string {
key := fmt.Sprintf("message:%s:%s", m.ChatID, m.ID)
t, ok := tenant.FromContext(ctx)
if !ok {
return key
}
return fmt.Sprintf("%s/%s", t, key)
}
func (m *Message) Index(ctx context.Context) string {
key := fmt.Sprintf("messagesByChatID:%s", m.ChatID)
if !m.SentAt.IsZero() {
key = fmt.Sprintf("%s:%d", key, m.SentAt.UnixNano())
if len(m.ID) > 0 {
key = fmt.Sprintf("%s:%s", key, m.ID)
}
}
t, ok := tenant.FromContext(ctx)
if !ok {
return key
}
return fmt.Sprintf("%s/%s", t, key)
}
func (c *Chat) Serialize() *pb.Chat {
return &pb.Chat{
Id: c.ID,
UserIds: c.UserIDs,
CreatedAt: c.CreatedAt.Format(time.RFC3339Nano),
}
}