парсер

2026-01-06 21:04:42 +03:00
parent b77e4fd0b6
commit 2c0ae2dfc3
45 changed files with 2202 additions and 51 deletions
--- a/tg_parser/internal/adapter/database/get_tracked_posts.go
+++ b/tg_parser/internal/adapter/database/get_tracked_posts.go
@@ -0,0 +1,90 @@
+package database
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/jackc/pgx/v5/pgtype"
+
+	"github.com/TelegramExchange/tgex-parser/internal/domain"
+	"github.com/TelegramExchange/tgex-parser/pkg/transaction"
+)
+
+func (d *Database) GetTrackedPosts(ctx context.Context, channel domain.Channel) ([]domain.Post, error) {
+	query := `SELECT DISTINCT
+    p.id,
+    p.channel_id,
+    p.message_id,
+    p.text,
+    CASE
+        WHEN c.username IS NOT NULL THEN CONCAT('https://t.me/', c.username, '/', p.message_id)
+        ELSE ''
+    END as link,
+    COALESCE(
+        (SELECT pvh.views_count
+         FROM post_views_history pvh
+         WHERE pvh.post_id = p.id
+         ORDER BY pvh.fetched_at DESC
+         LIMIT 1),
+        0
+    ) as views
+FROM post p
+INNER JOIN channel c ON c.id = p.channel_id
+INNER JOIN placement pl ON pl.post_id = p.id
+WHERE p.channel_id = $1
+  AND p.deleted_from_channel_at IS NULL;`
+
+	txOrPool := transaction.TryExtractTX(ctx)
+
+	rows, err := txOrPool.Query(ctx, query, pgtype.UUID{Bytes: channel.ID, Valid: true})
+	if err != nil {
+		return nil, fmt.Errorf("txOrPool.Query: %w", err)
+	}
+	defer rows.Close()
+
+	posts := make([]domain.Post, 0)
+
+	for rows.Next() {
+		var dto getTrackedPostsDTO
+
+		err = rows.Scan(dto.destination()...)
+		if err != nil {
+			return nil, fmt.Errorf("rows.Scan: %w", err)
+		}
+
+		posts = append(posts, dto.toDomain())
+	}
+
+	return posts, nil
+}
+
+type getTrackedPostsDTO struct {
+	ID        pgtype.UUID
+	ChannelID pgtype.UUID
+	MessageID pgtype.Int4
+	Text      pgtype.Text
+	Link      pgtype.Text
+	Views     pgtype.Int4
+}
+
+func (dto *getTrackedPostsDTO) destination() []any {
+	return []any{
+		&dto.ID,
+		&dto.ChannelID,
+		&dto.MessageID,
+		&dto.Text,
+		&dto.Link,
+		&dto.Views,
+	}
+}
+
+func (dto *getTrackedPostsDTO) toDomain() domain.Post {
+	return domain.Post{
+		ID:        dto.ID.Bytes,
+		ChannelID: dto.ChannelID.Bytes,
+		MessageID: int(dto.MessageID.Int32),
+		Text:      dto.Text.String,
+		Link:      dto.Link.String,
+		Views:     int(dto.Views.Int32),
+	}
+}