package slurm

import (
	"context"
	"fmt"
	"net/http"
	"net/http/httptest"
	"strings"
	"testing"
)

func TestSlurmdbClustersService_GetClusters(t *testing.T) {
	mux := http.NewServeMux()
	mux.HandleFunc("/slurmdb/v0.0.40/clusters", func(w http.ResponseWriter, r *http.Request) {
		testMethod(t, r, "GET")
		fmt.Fprint(w, `{"clusters": []}`)
	})
	server := httptest.NewServer(mux)
	defer server.Close()

	client, _ := NewClient(server.URL, nil)
	resp, _, err := client.SlurmdbClusters.GetClusters(context.Background(), nil)
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	if resp == nil {
		t.Fatal("expected non-nil response")
	}
}

func TestSlurmdbClustersService_GetClusters_WithOptions(t *testing.T) {
	mux := http.NewServeMux()
	mux.HandleFunc("/slurmdb/v0.0.40/clusters", func(w http.ResponseWriter, r *http.Request) {
		testMethod(t, r, "GET")
		q := r.URL.Query()
		if q.Get("classification") != ClusterClassificationCapability {
			t.Errorf("expected classification=%s, got %s", ClusterClassificationCapability, q.Get("classification"))
		}
		if q.Get("flags") != ClusterFlagFederation {
			t.Errorf("expected flags=%s, got %s", ClusterFlagFederation, q.Get("flags"))
		}
		if q.Get("with_deleted") != "true" {
			t.Errorf("expected with_deleted=true, got %s", q.Get("with_deleted"))
		}
		if q.Get("with_usage") != "true" {
			t.Errorf("expected with_usage=true, got %s", q.Get("with_usage"))
		}
		fmt.Fprint(w, `{"clusters": []}`)
	})
	server := httptest.NewServer(mux)
	defer server.Close()

	client, _ := NewClient(server.URL, nil)
	opts := &GetClustersOptions{
		Classification: Ptr(ClusterClassificationCapability),
		Flags:          Ptr(ClusterFlagFederation),
		WithDeleted:    Ptr("true"),
		WithUsage:      Ptr("true"),
	}
	resp, _, err := client.SlurmdbClusters.GetClusters(context.Background(), opts)
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	if resp == nil {
		t.Fatal("expected non-nil response")
	}
}

func TestSlurmdbClustersService_GetCluster(t *testing.T) {
	mux := http.NewServeMux()
	mux.HandleFunc("/slurmdb/v0.0.40/cluster/test-cluster", func(w http.ResponseWriter, r *http.Request) {
		testMethod(t, r, "GET")
		fmt.Fprint(w, `{"clusters": [{"name": "test-cluster"}]}`)
	})
	server := httptest.NewServer(mux)
	defer server.Close()

	client, _ := NewClient(server.URL, nil)
	resp, _, err := client.SlurmdbClusters.GetCluster(context.Background(), "test-cluster", nil)
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	if resp == nil {
		t.Fatal("expected non-nil response")
	}
	if len(resp.Clusters) != 1 {
		t.Fatalf("expected 1 cluster, got %d", len(resp.Clusters))
	}
}

func TestSlurmdbClustersService_GetCluster_WithOptions(t *testing.T) {
	mux := http.NewServeMux()
	mux.HandleFunc("/slurmdb/v0.0.40/cluster/mycluster", func(w http.ResponseWriter, r *http.Request) {
		testMethod(t, r, "GET")
		q := r.URL.Query()
		if q.Get("classification") != ClusterClassificationCapacity {
			t.Errorf("expected classification=%s, got %s", ClusterClassificationCapacity, q.Get("classification"))
		}
		if q.Get("usage_start") != "1000000" {
			t.Errorf("expected usage_start=1000000, got %s", q.Get("usage_start"))
		}
		if q.Get("usage_end") != "2000000" {
			t.Errorf("expected usage_end=2000000, got %s", q.Get("usage_end"))
		}
		fmt.Fprint(w, `{"clusters": []}`)
	})
	server := httptest.NewServer(mux)
	defer server.Close()

	client, _ := NewClient(server.URL, nil)
	opts := &GetClustersOptions{
		Classification: Ptr(ClusterClassificationCapacity),
		UsageStart:     Ptr("1000000"),
		UsageEnd:       Ptr("2000000"),
	}
	resp, _, err := client.SlurmdbClusters.GetCluster(context.Background(), "mycluster", opts)
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	if resp == nil {
		t.Fatal("expected non-nil response")
	}
}

func TestSlurmdbClustersService_PostClusters(t *testing.T) {
	mux := http.NewServeMux()
	mux.HandleFunc("/slurmdb/v0.0.40/clusters", func(w http.ResponseWriter, r *http.Request) {
		testMethod(t, r, "POST")
		if ct := r.Header.Get("Content-Type"); ct != "application/json" {
			t.Errorf("expected Content-Type application/json, got %s", ct)
		}
		fmt.Fprint(w, `{}`)
	})
	server := httptest.NewServer(mux)
	defer server.Close()

	client, _ := NewClient(server.URL, nil)
	body := &OpenapiClustersResp{}
	resp, _, err := client.SlurmdbClusters.PostClusters(context.Background(), body)
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	if resp == nil {
		t.Fatal("expected non-nil response")
	}
}

func TestSlurmdbClustersService_DeleteCluster(t *testing.T) {
	mux := http.NewServeMux()
	mux.HandleFunc("/slurmdb/v0.0.40/cluster/old-cluster", func(w http.ResponseWriter, r *http.Request) {
		testMethod(t, r, "DELETE")
		q := r.URL.Query()
		if q.Get("classification") != ClusterClassificationUNCLASSIFIED {
			t.Errorf("expected classification=%s, got %s", ClusterClassificationUNCLASSIFIED, q.Get("classification"))
		}
		if q.Get("with_deleted") != "true" {
			t.Errorf("expected with_deleted=true, got %s", q.Get("with_deleted"))
		}
		fmt.Fprint(w, `{"deleted_clusters": ["old-cluster"]}`)
	})
	server := httptest.NewServer(mux)
	defer server.Close()

	client, _ := NewClient(server.URL, nil)
	opts := &DeleteClusterOptions{
		Classification: Ptr(ClusterClassificationUNCLASSIFIED),
		WithDeleted:    Ptr("true"),
	}
	resp, _, err := client.SlurmdbClusters.DeleteCluster(context.Background(), "old-cluster", opts)
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	if resp == nil {
		t.Fatal("expected non-nil response")
	}
	if len(resp.DeletedClusters) != 1 {
		t.Fatalf("expected 1 deleted cluster, got %d", len(resp.DeletedClusters))
	}
}

func TestSlurmdbClustersService_DeleteCluster_NoOptions(t *testing.T) {
	mux := http.NewServeMux()
	mux.HandleFunc("/slurmdb/v0.0.40/cluster/test-cluster", func(w http.ResponseWriter, r *http.Request) {
		testMethod(t, r, "DELETE")
		q := r.URL.Query()
		if len(q) != 0 {
			t.Errorf("expected no query params, got %v", q)
		}
		fmt.Fprint(w, `{"deleted_clusters": []}`)
	})
	server := httptest.NewServer(mux)
	defer server.Close()

	client, _ := NewClient(server.URL, nil)
	resp, _, err := client.SlurmdbClusters.DeleteCluster(context.Background(), "test-cluster", nil)
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	if resp == nil {
		t.Fatal("expected non-nil response")
	}
}

func TestSlurmdbClustersService_Error(t *testing.T) {
	mux := http.NewServeMux()
	mux.HandleFunc("/slurmdb/v0.0.40/clusters", func(w http.ResponseWriter, r *http.Request) {
		w.WriteHeader(http.StatusInternalServerError)
		fmt.Fprint(w, `{"errors": [{"error": "internal error"}]}`)
	})
	server := httptest.NewServer(mux)
	defer server.Close()

	client, _ := NewClient(server.URL, nil)
	_, _, err := client.SlurmdbClusters.GetClusters(context.Background(), nil)
	if err == nil {
		t.Fatal("expected error for 500 response")
	}
	if !strings.Contains(err.Error(), "500") {
		t.Errorf("expected error to contain 500, got %v", err)
	}
}