package slurm

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

func TestSlurmdbTresService_GetTres(t *testing.T) {
	mux := http.NewServeMux()
	mux.HandleFunc("/slurmdb/v0.0.40/tres", func(w http.ResponseWriter, r *http.Request) {
		testMethod(t, r, "GET")
		fmt.Fprint(w, `{"TRES": [{"type": "cpu", "id": 1, "count": 100}]}`)
	})
	server := httptest.NewServer(mux)
	defer server.Close()

	client, _ := NewClient(server.URL, nil)
	resp, _, err := client.SlurmdbTres.GetTres(context.Background())
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	if resp == nil {
		t.Fatal("expected non-nil response")
	}
	if len(resp.TRES) != 1 {
		t.Fatalf("expected 1 TRES entry, got %d", len(resp.TRES))
	}
	if *resp.TRES[0].Type != "cpu" {
		t.Errorf("expected TRES type 'cpu', got %q", *resp.TRES[0].Type)
	}
	if *resp.TRES[0].ID != 1 {
		t.Errorf("expected TRES id 1, got %d", *resp.TRES[0].ID)
	}
	if *resp.TRES[0].Count != 100 {
		t.Errorf("expected TRES count 100, got %d", *resp.TRES[0].Count)
	}
}

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

	client, _ := NewClient(server.URL, nil)
	resp, _, err := client.SlurmdbTres.PostTres(context.Background(), &OpenapiTresResp{})
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	if resp == nil {
		t.Fatal("expected non-nil response")
	}
	if len(resp.TRES) != 0 {
		t.Errorf("expected empty TRES, got %d entries", len(resp.TRES))
	}
}

func TestSlurmdbTresService_GetTres_Error(t *testing.T) {
	mux := http.NewServeMux()
	mux.HandleFunc("/slurmdb/v0.0.40/tres", 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.SlurmdbTres.GetTres(context.Background())
	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)
	}
}