92 lines
2.8 KiB
Go
92 lines
2.8 KiB
Go
package database
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import (
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"context"
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"crypto/md5"
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"database/sql"
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"encoding/hex"
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"fmt"
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"ti1/valki"
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"github.com/valkey-io/valkey-go"
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)
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func InsertOrUpdateEstimatedCall(ctx context.Context, db *sql.DB, values []interface{}, valkeyClient valkey.Client) (int, string, error) {
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// Replace empty strings with nil for timestamp fields
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for i, v := range values {
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if str, ok := v.(string); ok && str == "" {
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values[i] = nil
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}
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}
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// Convert values to a single string and hash it using MD5
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var valuesString string
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for _, v := range values {
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if v != nil {
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valuesString += fmt.Sprintf("%v", v)
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}
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}
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hash := md5.Sum([]byte(valuesString))
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hashString := hex.EncodeToString(hash[:])
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fmt.Println("HashString:", hashString)
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estimatedVehicleJourneyID := values[0]
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orderID := values[1]
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key := fmt.Sprintf("%v.%v", estimatedVehicleJourneyID, orderID)
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fmt.Printf("Estimated Vehicle Journey ID: %v, Order ID: %v\n", estimatedVehicleJourneyID, orderID)
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// Get the MD5 hash from Valkey
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retrievedHash, err := valki.GetValkeyValue(ctx, valkeyClient, key)
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if err != nil {
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return 0, "", fmt.Errorf("failed to get value from Valkey: %v", err)
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}
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// Check if the retrieved value matches the original MD5 hash
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if retrievedHash == hashString {
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fmt.Println("Retrieved hash matches the original hash. No update needed.")
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return 0, "no_update", nil
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}
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query := `
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INSERT INTO calls (
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estimatedvehiclejourney, "order", stoppointref,
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aimeddeparturetime, expecteddeparturetime,
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aimedarrivaltime, expectedarrivaltime,
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cancellation, estimated_data
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)
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VALUES ($1,$2,$3,$4,$5,$6,$7,$8,$9)
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ON CONFLICT (estimatedvehiclejourney, "order")
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DO UPDATE SET
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stoppointref = EXCLUDED.stoppointref,
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aimeddeparturetime = EXCLUDED.aimeddeparturetime,
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expecteddeparturetime = EXCLUDED.expecteddeparturetime,
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aimedarrivaltime = EXCLUDED.aimedarrivaltime,
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expectedarrivaltime = EXCLUDED.expectedarrivaltime,
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cancellation = EXCLUDED.cancellation,
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estimated_data = EXCLUDED.estimated_data
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RETURNING CASE WHEN xmax = 0 THEN 'insert' ELSE 'update' END, id;
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`
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stmt, err := db.Prepare(query)
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if err != nil {
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return 0, "", fmt.Errorf("error preparing statement: %v", err)
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}
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defer stmt.Close()
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var action string
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var id int
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err = stmt.QueryRow(values...).Scan(&action, &id)
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if err != nil {
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return 0, "", fmt.Errorf("error executing statement: %v", err)
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}
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// If the record was inserted or updated, set the new hash in Valkey
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if action == "insert" || action == "update" {
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err = valki.SetValkeyValue(ctx, valkeyClient, key, hashString)
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if err != nil {
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return 0, "", fmt.Errorf("failed to set value in Valkey: %v", err)
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}
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}
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return id, action, nil
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}
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