парсер

tg_parser/internal/usecase/usecase.go

@@ -0,0 +1,38 @@
+package usecase
+
+import (
+	"context"
+
+	"github.com/TelegramExchange/tgex-parser/internal/domain"
+)
+
+type Telegram interface {
+	ParseChannelMeta(ctx context.Context, username string) (domain.Channel, error)
+	GetChannelHistory(ctx context.Context, channel domain.Channel, limit int) ([]domain.Post, error)
+	GetChannelDiff(ctx context.Context, channel domain.Channel, limit int) (domain.ChannelDiff, error)
+	UpdatePostsViews(ctx context.Context, channel domain.Channel, posts []domain.Post) error
+}
+
+type Database interface {
+	CreatePost(ctx context.Context, post domain.Post) error
+
+	CreateViewsSnapshot(ctx context.Context, snapshot domain.ViewsSnapshot) error
+
+	GetChannels(ctx context.Context) []domain.Channel
+	UpdateChannel(ctx context.Context, channel domain.Channel) error
+	GetChannelsWithTrackedPosts(ctx context.Context) ([]domain.Channel, error)
+	GetTrackedPosts(ctx context.Context, channel domain.Channel) ([]domain.Post, error)
+	DeletePost(ctx context.Context, p domain.Post) error
+}
+
+type UseCase struct {
+	telegram Telegram
+	database Database
+}
+
+func New(telegram Telegram, database Database) *UseCase {
+	return &UseCase{
+		telegram: telegram,
+		database: database,
+	}
+}