From ecdb41217e6c197aa9c19d6954abc7744b8c6abc Mon Sep 17 00:00:00 2001
From: PhatPhuckDave <david.majdandzic@hotmail.com>
Date: Mon, 26 Jan 2026 11:51:29 +0100
Subject: [PATCH] Add item type reader

---
 mprocs.yaml                               |  12 ++
 pipeline/missing-item-type-reader/main.go | 155 ++++++++++++++++++++++
 2 files changed, 167 insertions(+)
 create mode 100644 pipeline/missing-item-type-reader/main.go

diff --git a/mprocs.yaml b/mprocs.yaml
index b0f4673..50bdce4 100644
--- a/mprocs.yaml
+++ b/mprocs.yaml
@@ -52,3 +52,15 @@ procs:
     autostart: false
     stop:
       send-keys: ["<C-c>"]
+      
+  missing-item-type-reader:
+    shell: "go run ."
+    cwd: "pipeline/missing-item-type-reader"
+    env:
+      CLICKHOUSE_HOST: "clickhouse-zkill.site.quack-lab.dev"
+      CLICKHOUSE_DATABASE: "zkill"
+      CLICKHOUSE_USERNAME: "default"
+      CLICKHOUSE_PASSWORD: ""
+    autostart: false
+    stop:
+      send-keys: ["<C-c>"]
diff --git a/pipeline/missing-item-type-reader/main.go b/pipeline/missing-item-type-reader/main.go
new file mode 100644
index 0000000..2c70ba0
--- /dev/null
+++ b/pipeline/missing-item-type-reader/main.go
@@ -0,0 +1,155 @@
+package main
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"os"
+	"os/signal"
+	"syscall"
+	"time"
+
+	"zkillsusser/clickhouse"
+	"zkillsusser/config"
+	"zkillsusser/lnsq"
+
+	logger "git.site.quack-lab.dev/dave/cylogger"
+	"github.com/nsqio/go-nsq"
+)
+
+const (
+	BatchSize = 1000
+	Topic     = "missing-item-type-queue"
+)
+
+type ItemTypeIDMessage struct {
+	ItemTypeID int32 `json:"item_type_id"`
+}
+
+func main() {
+	if err := config.InitConfig(); err != nil {
+		logger.Error("Failed to initialize config: %v", err)
+		return
+	}
+
+	logger.InitFlag()
+	logger.Info("Starting missing item type reader: reading from ClickHouse and writing to NSQ")
+
+	chClient, err := clickhouse.NewClient()
+	if err != nil {
+		logger.Error("Failed to create ClickHouse client: %v", err)
+		return
+	}
+	defer chClient.Close()
+
+	producer, err := lnsq.NewProducer()
+	if err != nil {
+		logger.Error("Failed to create NSQ producer: %v", err)
+		return
+	}
+	defer producer.Stop()
+
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+
+	sigChan := make(chan os.Signal, 1)
+	signal.Notify(sigChan, syscall.SIGINT, syscall.SIGTERM)
+
+	go func() {
+		<-sigChan
+		logger.Info("Shutdown signal received, stopping gracefully...")
+		cancel()
+	}()
+
+	if err := processMissingItemTypes(ctx, chClient, producer); err != nil {
+		logger.Error("Failed to process missing item types: %v", err)
+		return
+	}
+
+	logger.Info("Missing item type reader completed")
+}
+
+func processMissingItemTypes(ctx context.Context, chClient *clickhouse.Client, producer *nsq.Producer) error {
+	itemTypeIDs, err := queryMissingItemTypes(ctx, chClient)
+	if err != nil {
+		return fmt.Errorf("failed to query missing item types: %w", err)
+	}
+
+	if len(itemTypeIDs) == 0 {
+		logger.Info("No missing item types found")
+		return nil
+	}
+
+	logger.Info("Found %d distinct missing item type IDs, publishing in batches", len(itemTypeIDs))
+
+	published := 0
+	for i := 0; i < len(itemTypeIDs); i += BatchSize {
+		if ctx.Err() != nil {
+			return ctx.Err()
+		}
+
+		end := i + BatchSize
+		if end > len(itemTypeIDs) {
+			end = len(itemTypeIDs)
+		}
+
+		batch := itemTypeIDs[i:end]
+		for _, itemTypeID := range batch {
+			if ctx.Err() != nil {
+				return ctx.Err()
+			}
+
+			message := ItemTypeIDMessage{
+				ItemTypeID: itemTypeID,
+			}
+
+			messageBytes, err := json.Marshal(message)
+			if err != nil {
+				logger.Error("Failed to marshal item type ID message: %v", err)
+				continue
+			}
+
+			for {
+				err = producer.Publish(Topic, messageBytes)
+				if err == nil {
+					break
+				}
+				logger.Error("Failed to publish item type ID, retrying: %v", err)
+				time.Sleep(1 * time.Second)
+			}
+
+			published++
+		}
+
+		logger.Info("Published batch of %d item type IDs (total: %d/%d)", len(batch), published, len(itemTypeIDs))
+	}
+
+	logger.Info("Published all %d missing item type IDs", published)
+	return nil
+}
+
+func queryMissingItemTypes(ctx context.Context, chClient *clickhouse.Client) ([]int32, error) {
+	query := `
+		SELECT DISTINCT item_type_id
+		FROM zkill.killmail_items
+		WHERE item_type_name = '' OR item_type_name IS NULL
+		ORDER BY item_type_id
+	`
+
+	rows, err := chClient.Query(ctx, query)
+	if err != nil {
+		return nil, fmt.Errorf("failed to execute query: %w", err)
+	}
+	defer rows.Close()
+
+	var itemTypeIDs []int32
+	for rows.Next() {
+		var itemTypeID int32
+		if err := rows.Scan(&itemTypeID); err != nil {
+			return nil, fmt.Errorf("failed to scan row: %w", err)
+		}
+		itemTypeIDs = append(itemTypeIDs, itemTypeID)
+	}
+
+	return itemTypeIDs, rows.Err()
+}