package slurm

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

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

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

func TestPartitionsService_GetPartitions_WithOptions(t *testing.T) {
	var capturedQuery url.Values
	mux := http.NewServeMux()
	mux.HandleFunc("/slurm/v0.0.40/partitions", func(w http.ResponseWriter, r *http.Request) {
		capturedQuery = r.URL.Query()
		testMethod(t, r, "GET")
		fmt.Fprint(w, `{"partitions": [], "last_update": {}}`)
	})
	server := httptest.NewServer(mux)
	defer server.Close()

	client, _ := NewClient(server.URL, nil)
	opts := &GetPartitionsOptions{
		UpdateTime: Ptr(int64(1700000000)),
	}
	_, _, err := client.Partitions.GetPartitions(context.Background(), opts)
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	if capturedQuery.Get("update_time") != "1700000000" {
		t.Errorf("expected update_time=1700000000, got %s", capturedQuery.Get("update_time"))
	}
}

func TestPartitionsService_GetPartition(t *testing.T) {
	mux := http.NewServeMux()
	mux.HandleFunc("/slurm/v0.0.40/partition/gpu", func(w http.ResponseWriter, r *http.Request) {
		testMethod(t, r, "GET")
		fmt.Fprint(w, `{"partitions": [{"name": "gpu"}], "last_update": {}}`)
	})
	server := httptest.NewServer(mux)
	defer server.Close()

	client, _ := NewClient(server.URL, nil)
	resp, _, err := client.Partitions.GetPartition(context.Background(), "gpu", nil)
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	if resp == nil {
		t.Fatal("expected non-nil response")
	}
	if resp.Partitions == nil || len(*resp.Partitions) != 1 {
		t.Fatalf("expected 1 partition, got %v", resp.Partitions)
	}
}

func TestPartitionsService_GetPartitions_Error(t *testing.T) {
	mux := http.NewServeMux()
	mux.HandleFunc("/slurm/v0.0.40/partitions", 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.Partitions.GetPartitions(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)
	}
}

func TestPartitionsService_GetPartition_Error(t *testing.T) {
	mux := http.NewServeMux()
	mux.HandleFunc("/slurm/v0.0.40/partition/nonexistent", func(w http.ResponseWriter, r *http.Request) {
		w.WriteHeader(http.StatusNotFound)
		fmt.Fprint(w, `{"errors": [{"error": "partition not found"}]}`)
	})
	server := httptest.NewServer(mux)
	defer server.Close()

	client, _ := NewClient(server.URL, nil)
	_, _, err := client.Partitions.GetPartition(context.Background(), "nonexistent", nil)
	if err == nil {
		t.Fatal("expected error for 404 response")
	}
}