Feature/1467 statistics page

backend/src/main/java/ch/puzzle/okr/controller/EvaluationViewController.java

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+package ch.puzzle.okr.controller;
+
+import ch.puzzle.okr.dto.EvaluationDto;
+import ch.puzzle.okr.mapper.EvaluationViewMapper;
+import ch.puzzle.okr.service.business.EvaluationViewBusinessService;
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.Parameter;
+import io.swagger.v3.oas.annotations.media.Content;
+import io.swagger.v3.oas.annotations.media.Schema;
+import io.swagger.v3.oas.annotations.responses.ApiResponse;
+import io.swagger.v3.oas.annotations.responses.ApiResponses;
+import java.util.List;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping("api/v2/evaluation")
+public class EvaluationViewController {
+
+    private final EvaluationViewMapper evaluationViewMapper;
+    private final EvaluationViewBusinessService evaluationViewBusinessService;
+
+    public EvaluationViewController(EvaluationViewMapper evaluationViewMapper,
+                                    EvaluationViewBusinessService evaluationViewBusinessService) {
+        this.evaluationViewMapper = evaluationViewMapper;
+        this.evaluationViewBusinessService = evaluationViewBusinessService;
+    }
+
+    @Operation(summary = "Get statistics data for multiple teams in a specific quarter", description = "Get the statistics data for multiple teams in a specific quarter")
+    @ApiResponses(value = {
+            @ApiResponse(responseCode = "200", description = "Returned the statistics data for the requested teams and quarter", content = {
+                    @Content(mediaType = "application/json", schema = @Schema(implementation = EvaluationDto.class)) }),
+            @ApiResponse(responseCode = "404", description = "The quarter or one of the teams were not found", content = @Content),
+            @ApiResponse(responseCode = "401", description = "Not Authorized", content = @Content) })
+    @GetMapping("")
+    public ResponseEntity<EvaluationDto> getEvaluation(@RequestParam(name = "team")
+    @Parameter(description = "List of Team ids the statistics are requested for") List<Long> teamIds,
+                                                       @RequestParam(name = "quarter")
+                                                       @Parameter(description = "Quarter id the statistics are requested for ") Long quarterId) {
+        return ResponseEntity
+                .status(HttpStatus.OK)
+                .body(evaluationViewMapper
+                        .toDto(evaluationViewBusinessService
+                                .findByIds(evaluationViewMapper.fromDto(teamIds, quarterId))));
+    }
+}

backend/src/main/java/ch/puzzle/okr/dto/EvaluationDto.java

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+package ch.puzzle.okr.dto;
+
+public record EvaluationDto(int objectiveAmount, int completedObjectivesAmount,
+        int successfullyCompletedObjectivesAmount, int keyResultAmount, int keyResultsOrdinalAmount,
+        int keyResultsMetricAmount, int keyResultsInTargetOrStretchAmount, int keyResultsInFailAmount,
+        int keyResultsInCommitAmount, int keyResultsInTargetAmount, int keyResultsInStretchAmount) {
+}

backend/src/main/java/ch/puzzle/okr/mapper/EvaluationViewMapper.java

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+package ch.puzzle.okr.mapper;
+
+import ch.puzzle.okr.dto.EvaluationDto;
+import ch.puzzle.okr.models.evaluation.EvaluationView;
+import ch.puzzle.okr.models.evaluation.EvaluationViewId;
+import java.util.List;
+import org.springframework.stereotype.Component;
+
+@Component
+public class EvaluationViewMapper {
+    public EvaluationDto toDto(List<EvaluationView> evaluationViews) {
+        int objectiveSum = 0;
+        int completedObjectivesSum = 0;
+        int successfullyCompletedObjectivesSum = 0;
+        int keyResultSum = 0;
+        int keyResultsOrdinalSum = 0;
+        int keyResultsMetricSum = 0;
+        int keyResultsInTargetOrStretchSum = 0;
+        int keyResultsInFailSum = 0;
+        int keyResultsInCommitSum = 0;
+        int keyResultsInTargetSum = 0;
+        int keyResultsInStretchSum = 0;
+
+        for (EvaluationView view : evaluationViews) {
+            objectiveSum += view.getObjectiveAmount();
+            completedObjectivesSum += view.getCompletedObjectivesAmount();
+            successfullyCompletedObjectivesSum += view.getSuccessfullyCompletedObjectivesAmount();
+            keyResultSum += view.getKeyResultAmount();
+            keyResultsOrdinalSum += view.getKeyResultsOrdinalAmount();
+            keyResultsMetricSum += view.getKeyResultsMetricAmount();
+            keyResultsInTargetOrStretchSum += view.getKeyResultsInTargetOrStretchAmount();
+            keyResultsInFailSum += view.getKeyResultsInFailAmount();
+            keyResultsInCommitSum += view.getKeyResultsInCommitAmount();
+            keyResultsInTargetSum += view.getKeyResultsInTargetAmount();
+            keyResultsInStretchSum += view.getKeyResultsInStretchAmount();
+        }
+
+        return new EvaluationDto(objectiveSum,
+                                 completedObjectivesSum,
+                                 successfullyCompletedObjectivesSum,
+                                 keyResultSum,
+                                 keyResultsOrdinalSum,
+                                 keyResultsMetricSum,
+                                 keyResultsInTargetOrStretchSum,
+                                 keyResultsInFailSum,
+                                 keyResultsInCommitSum,
+                                 keyResultsInTargetSum,
+                                 keyResultsInStretchSum);
+    }
+
+    public List<EvaluationViewId> fromDto(List<Long> teamIds, Long quarterId) {
+        return teamIds.stream().map(teamId -> new EvaluationViewId(teamId, quarterId)).toList();
+    }
+}

backend/src/main/java/ch/puzzle/okr/models/evaluation/EvaluationView.java

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+package ch.puzzle.okr.models.evaluation;
+
+import jakarta.persistence.EmbeddedId;
+import jakarta.persistence.Entity;
+import java.util.Objects;
+import org.hibernate.annotations.Immutable;
+
+@Entity
+@Immutable
+public class EvaluationView {
+    @EmbeddedId
+    private EvaluationViewId evaluationViewId;
+
+    private int objectiveAmount;
+    private int completedObjectivesAmount;
+    private int successfullyCompletedObjectivesAmount;
+
+    private int keyResultAmount;
+    private int keyResultsOrdinalAmount;
+    private int keyResultsMetricAmount;
+    private int keyResultsInTargetOrStretchAmount;
+
+    private int keyResultsInFailAmount;
+    private int keyResultsInCommitAmount;
+    private int keyResultsInTargetAmount;
+    private int keyResultsInStretchAmount;
+
+    private EvaluationView(Builder builder) {
+        evaluationViewId = builder.evaluationViewId;
+        objectiveAmount = builder.objectiveAmount;
+        completedObjectivesAmount = builder.completedObjectivesAmount;
+        successfullyCompletedObjectivesAmount = builder.successfullyCompletedObjectivesAmount;
+        keyResultAmount = builder.keyResultAmount;
+        keyResultsOrdinalAmount = builder.keyResultsOrdinalAmount;
+        keyResultsMetricAmount = builder.keyResultsMetricAmount;
+        keyResultsInTargetOrStretchAmount = builder.keyResultsInTargetOrStretchAmount;
+        keyResultsInFailAmount = builder.keyResultsInFailAmount;
+        keyResultsInCommitAmount = builder.keyResultsInCommitAmount;
+        keyResultsInTargetAmount = builder.keyResultsInTargetAmount;
+        keyResultsInStretchAmount = builder.keyResultsInStretchAmount;
+    }
+
+    public EvaluationView() {
+    }
+
+    public EvaluationViewId getEvaluationViewId() {
+        return evaluationViewId;
+    }
+
+    public int getObjectiveAmount() {
+        return objectiveAmount;
+    }
+
+    public int getCompletedObjectivesAmount() {
+        return completedObjectivesAmount;
+    }
+
+    public int getSuccessfullyCompletedObjectivesAmount() {
+        return successfullyCompletedObjectivesAmount;
+    }
+
+    public int getKeyResultAmount() {
+        return keyResultAmount;
+    }
+
+    public int getKeyResultsOrdinalAmount() {
+        return keyResultsOrdinalAmount;
+    }
+
+    public int getKeyResultsMetricAmount() {
+        return keyResultsMetricAmount;
+    }
+
+    public int getKeyResultsInTargetOrStretchAmount() {
+        return keyResultsInTargetOrStretchAmount;
+    }
+
+    public int getKeyResultsInFailAmount() {
+        return keyResultsInFailAmount;
+    }
+
+    public int getKeyResultsInCommitAmount() {
+        return keyResultsInCommitAmount;
+    }
+
+    public int getKeyResultsInTargetAmount() {
+        return keyResultsInTargetAmount;
+    }
+
+    public int getKeyResultsInStretchAmount() {
+        return keyResultsInStretchAmount;
+    }
+
+    public static final class Builder {
+        private EvaluationViewId evaluationViewId;
+        private int objectiveAmount;
+        private int completedObjectivesAmount;
+        private int successfullyCompletedObjectivesAmount;
+        private int keyResultAmount;
+        private int keyResultsOrdinalAmount;
+        private int keyResultsMetricAmount;
+        private int keyResultsInTargetOrStretchAmount;
+        private int keyResultsInFailAmount;
+        private int keyResultsInCommitAmount;
+        private int keyResultsInTargetAmount;
+        private int keyResultsInStretchAmount;
+
+        private Builder() {
+        }
+
+        public static Builder builder() {
+            return new Builder();
+        }
+
+        public Builder withEvaluationViewId(EvaluationViewId val) {
+            evaluationViewId = val;
+            return this;
+        }
+
+        public Builder withObjectiveAmount(int val) {
+            objectiveAmount = val;
+            return this;
+        }
+
+        public Builder withCompletedObjectivesAmount(int val) {
+            completedObjectivesAmount = val;
+            return this;
+        }
+
+        public Builder withSuccessfullyCompletedObjectivesAmount(int val) {
+            successfullyCompletedObjectivesAmount = val;
+            return this;
+        }
+
+        public Builder withKeyResultAmount(int val) {
+            keyResultAmount = val;
+            return this;
+        }
+
+        public Builder withKeyResultsOrdinalAmount(int val) {
+            keyResultsOrdinalAmount = val;
+            return this;
+        }
+
+        public Builder withKeyResultsMetricAmount(int val) {
+            keyResultsMetricAmount = val;
+            return this;
+        }
+
+        public Builder withKeyResultsInTargetOrStretchAmount(int val) {
+            keyResultsInTargetOrStretchAmount = val;
+            return this;
+        }
+
+        public Builder withKeyResultsInFailAmount(int val) {
+            keyResultsInFailAmount = val;
+            return this;
+        }
+
+        public Builder withKeyResultsInCommitAmount(int val) {
+            keyResultsInCommitAmount = val;
+            return this;
+        }
+
+        public Builder withKeyResultsInTargetAmount(int val) {
+            keyResultsInTargetAmount = val;
+            return this;
+        }
+
+        public Builder withKeyResultsInStretchAmount(int val) {
+            keyResultsInStretchAmount = val;
+            return this;
+        }
+
+        public EvaluationView build() {
+            return new EvaluationView(this);
+        }
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (!(o instanceof EvaluationView that)) {
+            return false;
+        }
+        return getObjectiveAmount() == that.getObjectiveAmount()
+               && getCompletedObjectivesAmount() == that.getCompletedObjectivesAmount()
+               && getSuccessfullyCompletedObjectivesAmount() == that.getSuccessfullyCompletedObjectivesAmount()
+               && getKeyResultAmount() == that.getKeyResultAmount()
+               && getKeyResultsOrdinalAmount() == that.getKeyResultsOrdinalAmount()
+               && getKeyResultsMetricAmount() == that.getKeyResultsMetricAmount()
+               && getKeyResultsInTargetOrStretchAmount() == that.getKeyResultsInTargetOrStretchAmount()
+               && getKeyResultsInFailAmount() == that.getKeyResultsInFailAmount()
+               && getKeyResultsInCommitAmount() == that.getKeyResultsInCommitAmount()
+               && getKeyResultsInTargetAmount() == that.getKeyResultsInTargetAmount()
+               && getKeyResultsInStretchAmount() == that.getKeyResultsInStretchAmount()
+               && Objects.equals(getEvaluationViewId(), that.getEvaluationViewId());
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects
+                .hash(getEvaluationViewId(),
+                      getObjectiveAmount(),
+                      getCompletedObjectivesAmount(),
+                      getSuccessfullyCompletedObjectivesAmount(),
+                      getKeyResultAmount(),
+                      getKeyResultsOrdinalAmount(),
+                      getKeyResultsMetricAmount(),
+                      getKeyResultsInTargetOrStretchAmount(),
+                      getKeyResultsInFailAmount(),
+                      getKeyResultsInCommitAmount(),
+                      getKeyResultsInTargetAmount(),
+                      getKeyResultsInStretchAmount());
+    }
+}