package slurm

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

func TestDiagService_GetDiag(t *testing.T) {
	mux := http.NewServeMux()
	mux.HandleFunc("/slurm/v0.0.40/diag", func(w http.ResponseWriter, r *http.Request) {
		testMethod(t, r, "GET")
		fmt.Fprint(w, `{"statistics": {"parts": 1}, "meta": {"plugin": {"type": "openapi/slurmctld"}}}`)
	})
	server := httptest.NewServer(mux)
	defer server.Close()

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

func TestDiagService_GetDiag_Error(t *testing.T) {
	mux := http.NewServeMux()
	mux.HandleFunc("/slurm/v0.0.40/diag", 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.Diag.GetDiag(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)
	}
}

func TestPingService_Ping(t *testing.T) {
	mux := http.NewServeMux()
	mux.HandleFunc("/slurm/v0.0.40/ping", func(w http.ResponseWriter, r *http.Request) {
		testMethod(t, r, "GET")
		fmt.Fprint(w, `{"pings": [{"hostname": "slurmctl", "pinged": "UP", "latency": 100, "mode": "primary"}]}`)
	})
	server := httptest.NewServer(mux)
	defer server.Close()

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

func TestPingService_Ping_Error(t *testing.T) {
	mux := http.NewServeMux()
	mux.HandleFunc("/slurm/v0.0.40/ping", func(w http.ResponseWriter, r *http.Request) {
		w.WriteHeader(http.StatusServiceUnavailable)
		fmt.Fprint(w, `{"errors": [{"error": "service unavailable"}]}`)
	})
	server := httptest.NewServer(mux)
	defer server.Close()

	client, _ := NewClient(server.URL, nil)
	_, _, err := client.Ping.Ping(context.Background())
	if err == nil {
		t.Fatal("expected error for 503 response")
	}
}

func TestLicensesService_GetLicenses(t *testing.T) {
	mux := http.NewServeMux()
	mux.HandleFunc("/slurm/v0.0.40/licenses", func(w http.ResponseWriter, r *http.Request) {
		testMethod(t, r, "GET")
		fmt.Fprint(w, `{"licenses": [{"LicenseName": "matlab", "Total": 10, "Used": 3, "Free": 7, "Remote": false}]}`)
	})
	server := httptest.NewServer(mux)
	defer server.Close()

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

func TestLicensesService_GetLicenses_Error(t *testing.T) {
	mux := http.NewServeMux()
	mux.HandleFunc("/slurm/v0.0.40/licenses", 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.Licenses.GetLicenses(context.Background())
	if err == nil {
		t.Fatal("expected error for 500 response")
	}
}

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

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

func TestReconfigureService_Reconfigure_Error(t *testing.T) {
	mux := http.NewServeMux()
	mux.HandleFunc("/slurm/v0.0.40/reconfigure", 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.Reconfigure.Reconfigure(context.Background())
	if err == nil {
		t.Fatal("expected error for 500 response")
	}
}