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check_key_logic.go
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/
check_key_logic.go
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package main
import (
"context"
"errors"
"log"
"strconv"
"time"
. "github.com/fireacademy/golden-gate/redis"
telemetry "github.com/fireacademy/telemetry"
"github.com/go-redis/redis/v8"
"go.opentelemetry.io/otel/attribute"
)
func IsAPIKeyOK(ctx context.Context, apiKey string, info DataDudeResponse, creditsToProcess int64) (int64 /* creditsToBill */, bool /* ok */, string /* newOrigin */, bool /* purchaseCreditsPackage */) {
ctx, span := telemetry.GetSpan(ctx, "IsAPIKeyOK")
defer span.End()
span.SetAttributes(
attribute.String("api_key", apiKey),
attribute.Int64("credits_to_process", creditsToProcess),
attribute.Bool("info.api_key.disabled", info.APIKey.Disabled),
attribute.Int64("info.api_key.monthly_credit_limit", info.APIKey.MonthlyCreditLimit),
attribute.String("info.api_key.origin", info.APIKey.Origin),
attribute.Int64("info.user.remaining_credits", info.User.RemainingCredits),
attribute.String("info.user.stripe_customer_id", info.User.StripeCustomerID.String),
attribute.Bool("info.user.auto_purchase_credits_packages", info.User.AutoPurchaseCreditsPackages),
attribute.Int64("info.usage.credits", info.Usage.Credits),
)
origin := info.APIKey.Origin
creditsToBill := creditsToProcess
ok := true
if info.APIKey.MonthlyCreditLimit != 0 {
if info.APIKey.MonthlyCreditLimit < info.Usage.Credits+creditsToBill {
log.Print("Missed a few credits on API key " + apiKey)
creditsToBill = info.APIKey.MonthlyCreditLimit - info.Usage.Credits
ok = false
}
}
if info.APIKey.Disabled {
return 0, false, origin, false
}
if creditsToBill > info.User.RemainingCredits {
if info.User.StripeCustomerID.Valid && info.User.AutoPurchaseCreditsPackages {
return creditsToBill, ok, origin, true
} else {
return info.User.RemainingCredits, false, origin, false
}
}
return creditsToBill, ok, origin, false
}
func RefreshAPIKey(ctx context.Context, apiKey string) (bool /* canBeUsed */, string /* origin */, error /* err */) {
ctx, span := telemetry.GetSpan(ctx, "RefreshAPIKey")
defer span.End()
span.SetAttributes(
attribute.String("api_key", apiKey),
)
state, err := RDB.Get(ctx, API_KEY_PREFIX+apiKey).Result()
if err == nil && state == API_KEY_PENDING_CHECK_VALUE {
return CheckAPIKeyQuickly(ctx, apiKey)
}
err = RDB.Set(ctx, API_KEY_PREFIX+apiKey, API_KEY_PENDING_CHECK_VALUE, 2*time.Second).Err()
if err != nil {
telemetry.LogError(ctx, err, "could not set API key status in redis")
return false, "", err
}
info, err := GetAPIKeyInfoFromDataDude(ctx, apiKey)
if err != nil {
telemetry.LogError(ctx, err, "error with data-dude thingy")
return false, "", err
}
creditsToProcessStr, err := RDB.Get(ctx, USAGE_PREFIX+apiKey).Result()
if err != nil {
if err != redis.Nil {
telemetry.LogError(ctx, err, "could not get credits to process")
}
creditsToProcessStr = "0"
}
creditsToProcess, err := strconv.ParseInt(creditsToProcessStr, 10, 64)
if err != nil {
telemetry.LogError(ctx, err, "error when converting credits to process to int: "+creditsToProcessStr)
creditsToProcess = 0
}
err = RDB.DecrBy(ctx, USAGE_PREFIX+apiKey, creditsToProcess).Err()
if err != nil {
telemetry.LogError(ctx, err, "could not decrease API key credits (to bill) in redis")
return true, "*", err
}
creditsToBill, ok, newOrigin, purchaseCreditsPackage := IsAPIKeyOK(ctx, apiKey, info, creditsToProcess)
if purchaseCreditsPackage {
success, err := TellDataDudeToBillCreditsPackage(ctx, info.User.StripeCustomerID.String)
if err != nil || !success {
if err != nil {
telemetry.LogError(ctx, err, "could not bill extra credits package due to error")
}
msg := "Could not bill extra package for " + info.User.StripeCustomerID.String
telemetry.LogError(ctx, errors.New(msg), msg)
}
}
if creditsToBill > 0 {
success, err := TellDataDudeToRecordUsage(ctx, apiKey, creditsToBill)
if err != nil || !success {
msg := "Could not bill credits for " + apiKey
if err != nil {
err = errors.New(msg)
}
telemetry.LogError(ctx, err, msg)
}
}
// update redis
valueToSet := "not-ok"
if ok {
valueToSet = API_KEY_OK_VALUE
}
err = RDB.Set(ctx, API_KEY_PREFIX+apiKey, valueToSet, 0).Err()
if err != nil {
telemetry.LogError(ctx, err, "could not set API key status in redis")
return true, newOrigin, err
}
if ok {
err = RDB.Set(ctx, ORIGIN_PREFIX+apiKey, newOrigin, 0).Err()
if err != nil {
telemetry.LogError(ctx, err, "could not set API key origin in redis")
return true, newOrigin, err
}
} else {
err = RDB.Del(ctx, ORIGIN_PREFIX+apiKey).Err()
if err != nil && err != redis.Nil {
telemetry.LogError(ctx, err, "could not delete API key origin in redis")
return false, newOrigin, err
}
err = RDB.Del(ctx, USAGE_PREFIX+apiKey).Err()
if err != nil && err != redis.Nil {
telemetry.LogError(ctx, err, "could not delete API key usage in redis")
return false, newOrigin, err
}
}
RDB.SRem(ctx, PROCESS_QUEUE_SET_NAME, apiKey)
return ok, newOrigin, nil
}