feat(analytics): add sessionized_metrics for disputes analytics

crates/analytics/src/clickhouse.rs

@@ -139,6 +139,9 @@ impl AnalyticsDataSource for ClickhouseClient {
             | AnalyticsCollection::Dispute => {
                 TableEngine::CollapsingMergeTree { sign: "sign_flag" }
             }
+            AnalyticsCollection::DisputeSessionized => {
+                TableEngine::CollapsingMergeTree { sign: "sign_flag" }
+            }
             AnalyticsCollection::SdkEvents
             | AnalyticsCollection::SdkEventsAnalytics
             | AnalyticsCollection::ApiEvents
@@ -439,6 +442,7 @@ impl ToSql<ClickhouseClient> for AnalyticsCollection {
             Self::ConnectorEvents => Ok("connector_events_audit".to_string()),
             Self::OutgoingWebhookEvent => Ok("outgoing_webhook_events_audit".to_string()),
             Self::Dispute => Ok("dispute".to_string()),
+            Self::DisputeSessionized => Ok("sessionizer_dispute".to_string()),
             Self::ActivePaymentsAnalytics => Ok("active_payments".to_string()),
         }
     }

crates/analytics/src/disputes/accumulators.rs

@@ -5,8 +5,8 @@ use super::metrics::DisputeMetricRow;
 #[derive(Debug, Default)]
 pub struct DisputeMetricsAccumulator {
     pub disputes_status_rate: RateAccumulator,
-    pub total_amount_disputed: SumAccumulator,
-    pub total_dispute_lost_amount: SumAccumulator,
+    pub disputed_amount: PaymentProcessedAmountAccumulator,
+    pub dispute_lost_amount: PaymentProcessedAmountAccumulator,
 }
 #[derive(Debug, Default)]
 pub struct RateAccumulator {
@@ -17,7 +17,7 @@ pub struct RateAccumulator {
 }
 #[derive(Debug, Default)]
 #[repr(transparent)]
-pub struct SumAccumulator {
+pub struct PaymentProcessedAmountAccumulator {
     pub total: Option<i64>,
 }
 
@@ -29,7 +29,7 @@ pub trait DisputeMetricAccumulator {
     fn collect(self) -> Self::MetricOutput;
 }
 
-impl DisputeMetricAccumulator for SumAccumulator {
+impl DisputeMetricAccumulator for PaymentProcessedAmountAccumulator {
     type MetricOutput = Option<u64>;
     #[inline]
     fn add_metrics_bucket(&mut self, metrics: &DisputeMetricRow) {
@@ -92,8 +92,8 @@ impl DisputeMetricsAccumulator {
             disputes_challenged: challenge_rate,
             disputes_won: won_rate,
             disputes_lost: lost_rate,
-            total_amount_disputed: self.total_amount_disputed.collect(),
-            total_dispute_lost_amount: self.total_dispute_lost_amount.collect(),
+            disputed_amount: self.disputed_amount.collect(),
+            dispute_lost_amount: self.dispute_lost_amount.collect(),
             total_dispute,
         }
     }

crates/analytics/src/disputes/core.rs

@@ -5,8 +5,8 @@ use api_models::analytics::{
         DisputeDimensions, DisputeMetrics, DisputeMetricsBucketIdentifier,
         DisputeMetricsBucketResponse,
     },
-    AnalyticsMetadata, DisputeFilterValue, DisputeFiltersResponse, GetDisputeFilterRequest,
-    GetDisputeMetricRequest, MetricsResponse,
+    DisputeFilterValue, DisputeFiltersResponse, DisputesAnalyticsMetadata, DisputesMetricsResponse,
+    GetDisputeFilterRequest, GetDisputeMetricRequest,
 };
 use error_stack::ResultExt;
 use router_env::{
@@ -30,7 +30,7 @@ pub async fn get_metrics(
     pool: &AnalyticsProvider,
     auth: &AuthInfo,
     req: GetDisputeMetricRequest,
-) -> AnalyticsResult<MetricsResponse<DisputeMetricsBucketResponse>> {
+) -> AnalyticsResult<DisputesMetricsResponse<DisputeMetricsBucketResponse>> {
     let mut metrics_accumulator: HashMap<
         DisputeMetricsBucketIdentifier,
         DisputeMetricsAccumulator,
@@ -87,14 +87,17 @@ pub async fn get_metrics(
             logger::debug!(bucket_id=?id, bucket_value=?value, "Bucket row for metric {metric}");
             let metrics_builder = metrics_accumulator.entry(id).or_default();
             match metric {
-                DisputeMetrics::DisputeStatusMetric => metrics_builder
+                DisputeMetrics::DisputeStatusMetric
+                | DisputeMetrics::SessionizedDisputeStatusMetric => metrics_builder
                     .disputes_status_rate
                     .add_metrics_bucket(&value),
-                DisputeMetrics::TotalAmountDisputed => metrics_builder
-                    .total_amount_disputed
-                    .add_metrics_bucket(&value),
-                DisputeMetrics::TotalDisputeLostAmount => metrics_builder
-                    .total_dispute_lost_amount
+                DisputeMetrics::TotalAmountDisputed
+                | DisputeMetrics::SessionizedTotalAmountDisputed => {
+                    metrics_builder.disputed_amount.add_metrics_bucket(&value)
+                }
+                DisputeMetrics::TotalDisputeLostAmount
+                | DisputeMetrics::SessionizedTotalDisputeLostAmount => metrics_builder
+                    .dispute_lost_amount
                     .add_metrics_bucket(&value),
             }
         }
@@ -105,18 +108,31 @@ pub async fn get_metrics(
             metrics_accumulator
         );
     }
+    let mut total_disputed_amount = 0;
+    let mut total_dispute_lost_amount = 0;
     let query_data: Vec<DisputeMetricsBucketResponse> = metrics_accumulator
         .into_iter()
-        .map(|(id, val)| DisputeMetricsBucketResponse {
-            values: val.collect(),
-            dimensions: id,
+        .map(|(id, val)| {
+            let collected_values = val.collect();
+            if let Some(amount) = collected_values.disputed_amount {
+                total_disputed_amount += amount;
+            }
+            if let Some(amount) = collected_values.dispute_lost_amount {
+                total_dispute_lost_amount += amount;
+            }
+
+            DisputeMetricsBucketResponse {
+                values: collected_values,
+                dimensions: id,
+            }
         })
         .collect();
 
-    Ok(MetricsResponse {
+    Ok(DisputesMetricsResponse {
         query_data,
-        meta_data: [AnalyticsMetadata {
-            current_time_range: req.time_range,
+        meta_data: [DisputesAnalyticsMetadata {
+            total_disputed_amount: Some(total_disputed_amount),
+            total_dispute_lost_amount: Some(total_dispute_lost_amount),
         }],
     })
 }

crates/analytics/src/disputes/metrics.rs

@@ -1,4 +1,5 @@
 mod dispute_status_metric;
+mod sessionized_metrics;
 mod total_amount_disputed;
 mod total_dispute_lost_amount;
 
@@ -92,6 +93,21 @@ where
                     .load_metrics(dimensions, auth, filters, granularity, time_range, pool)
                     .await
             }
+            Self::SessionizedTotalAmountDisputed => {
+                sessionized_metrics::TotalAmountDisputed::default()
+                    .load_metrics(dimensions, auth, filters, granularity, time_range, pool)
+                    .await
+            }
+            Self::SessionizedDisputeStatusMetric => {
+                sessionized_metrics::DisputeStatusMetric::default()
+                    .load_metrics(dimensions, auth, filters, granularity, time_range, pool)
+                    .await
+            }
+            Self::SessionizedTotalDisputeLostAmount => {
+                sessionized_metrics::TotalDisputeLostAmount::default()
+                    .load_metrics(dimensions, auth, filters, granularity, time_range, pool)
+                    .await
+            }
         }
     }
 }

crates/analytics/src/disputes/metrics/sessionized_metrics/dispute_status_metric.rs

@@ -0,0 +1,120 @@
+use std::collections::HashSet;
+
+use api_models::analytics::{
+    disputes::{DisputeDimensions, DisputeFilters, DisputeMetricsBucketIdentifier},
+    Granularity, TimeRange,
+};
+use common_utils::errors::ReportSwitchExt;
+use error_stack::ResultExt;
+use time::PrimitiveDateTime;
+
+use super::DisputeMetricRow;
+use crate::{
+    enums::AuthInfo,
+    query::{Aggregate, GroupByClause, QueryBuilder, QueryFilter, SeriesBucket, ToSql, Window},
+    types::{AnalyticsCollection, AnalyticsDataSource, MetricsError, MetricsResult},
+};
+#[derive(Default)]
+pub(crate) struct DisputeStatusMetric {}
+
+#[async_trait::async_trait]
+impl<T> super::DisputeMetric<T> for DisputeStatusMetric
+where
+    T: AnalyticsDataSource + super::DisputeMetricAnalytics,
+    PrimitiveDateTime: ToSql<T>,
+    AnalyticsCollection: ToSql<T>,
+    Granularity: GroupByClause<T>,
+    Aggregate<&'static str>: ToSql<T>,
+    Window<&'static str>: ToSql<T>,
+{
+    async fn load_metrics(
+        &self,
+        dimensions: &[DisputeDimensions],
+        auth: &AuthInfo,
+        filters: &DisputeFilters,
+        granularity: &Option<Granularity>,
+        time_range: &TimeRange,
+        pool: &T,
+    ) -> MetricsResult<HashSet<(DisputeMetricsBucketIdentifier, DisputeMetricRow)>>
+    where
+        T: AnalyticsDataSource + super::DisputeMetricAnalytics,
+    {
+        let mut query_builder = QueryBuilder::new(AnalyticsCollection::DisputeSessionized);
+
+        for dim in dimensions {
+            query_builder.add_select_column(dim).switch()?;
+        }
+
+        query_builder.add_select_column("dispute_status").switch()?;
+
+        query_builder
+            .add_select_column(Aggregate::Count {
+                field: None,
+                alias: Some("count"),
+            })
+            .switch()?;
+        query_builder
+            .add_select_column(Aggregate::Min {
+                field: "created_at",
+                alias: Some("start_bucket"),
+            })
+            .switch()?;
+        query_builder
+            .add_select_column(Aggregate::Max {
+                field: "created_at",
+                alias: Some("end_bucket"),
+            })
+            .switch()?;
+
+        filters.set_filter_clause(&mut query_builder).switch()?;
+
+        auth.set_filter_clause(&mut query_builder).switch()?;
+
+        time_range.set_filter_clause(&mut query_builder).switch()?;
+
+        for dim in dimensions {
+            query_builder.add_group_by_clause(dim).switch()?;
+        }
+
+        query_builder
+            .add_group_by_clause("dispute_status")
+            .switch()?;
+
+        if let Some(granularity) = granularity.as_ref() {
+            granularity
+                .set_group_by_clause(&mut query_builder)
+                .switch()?;
+        }
+
+        query_builder
+            .execute_query::<DisputeMetricRow, _>(pool)
+            .await
+            .change_context(MetricsError::QueryBuildingError)?
+            .change_context(MetricsError::QueryExecutionFailure)?
+            .into_iter()
+            .map(|i| {
+                Ok((
+                    DisputeMetricsBucketIdentifier::new(
+                        i.dispute_stage.as_ref().map(|i| i.0),
+                        i.connector.clone(),
+                        TimeRange {
+                            start_time: match (granularity, i.start_bucket) {
+                                (Some(g), Some(st)) => g.clip_to_start(st)?,
+                                _ => time_range.start_time,
+                            },
+                            end_time: granularity.as_ref().map_or_else(
+                                || Ok(time_range.end_time),
+                                |g| i.end_bucket.map(|et| g.clip_to_end(et)).transpose(),
+                            )?,
+                        },
+                    ),
+                    i,
+                ))
+            })
+            .collect::<error_stack::Result<
+                HashSet<(DisputeMetricsBucketIdentifier, DisputeMetricRow)>,
+                crate::query::PostProcessingError,
+            >>()
+            .change_context(MetricsError::PostProcessingFailure)
+    }
+}

crates/analytics/src/disputes/metrics/sessionized_metrics/mod.rs

@@ -0,0 +1,8 @@
+mod dispute_status_metric;
+mod total_amount_disputed;
+mod total_dispute_lost_amount;
+pub(super) use dispute_status_metric::DisputeStatusMetric;
+pub(super) use total_amount_disputed::TotalAmountDisputed;
+pub(super) use total_dispute_lost_amount::TotalDisputeLostAmount;
+
+pub use super::{DisputeMetric, DisputeMetricAnalytics, DisputeMetricRow};