defmodule ToweropsWeb.GraphQL.Resolvers.DeviceTest do
  use Towerops.DataCase, async: true

  import Towerops.AccountsFixtures
  import Towerops.DevicesFixtures
  import Towerops.OrganizationsFixtures

  alias ToweropsWeb.GraphQL.Resolvers.Device, as: Resolver

  setup do
    user = user_fixture()
    org = organization_fixture(user.id)
    other_user = user_fixture()
    other_org = organization_fixture(other_user.id)

    {:ok, site} = Towerops.Sites.create_site(%{name: "S1", organization_id: org.id})

    %{
      user: user,
      org: org,
      other_org: other_org,
      site: site,
      ctx: %{organization_id: org.id}
    }
  end

  describe "list/3" do
    test "returns devices for the org", %{org: org, site: site, ctx: ctx} do
      _ =
        device_fixture(%{
          name: "Listed",
          organization_id: org.id,
          site_id: site.id
        })

      assert {:ok, devices} = Resolver.list(nil, %{}, %{context: ctx})
      assert Enum.any?(devices, &(&1.name == "Listed"))
    end

    test "without context returns auth error" do
      assert {:error, _} = Resolver.list(nil, %{}, %{})
    end
  end

  describe "get/3" do
    test "returns device with site preloaded", %{org: org, site: site, ctx: ctx} do
      device =
        device_fixture(%{name: "Found", organization_id: org.id, site_id: site.id})

      assert {:ok, found} = Resolver.get(nil, %{id: device.id}, %{context: ctx})
      assert found.id == device.id
    end

    test "returns 'not found' for cross-org id", %{other_org: other_org, ctx: ctx} do
      foreign = device_fixture(%{organization_id: other_org.id})

      assert {:error, "Device not found"} =
               Resolver.get(nil, %{id: foreign.id}, %{context: ctx})
    end

    test "without context returns auth error" do
      assert {:error, _} = Resolver.get(nil, %{id: Ecto.UUID.generate()}, %{})
    end
  end

  describe "create/3, update/3, delete/3" do
    test "creates a device under the org", %{site: site, ctx: ctx} do
      assert {:ok, device} =
               Resolver.create(
                 nil,
                 %{
                   input: %{
                     name: "Created",
                     site_id: site.id,
                     ip_address: "10.10.10.10"
                   }
                 },
                 %{context: ctx}
               )

      assert device.name == "Created"
      assert device.organization_id == ctx.organization_id
    end

    test "create returns formatted errors on invalid input", %{ctx: ctx} do
      assert {:error, errors} =
               Resolver.create(nil, %{input: %{name: ""}}, %{context: ctx})

      assert Enum.any?([is_list(errors), is_binary(errors), is_map(errors)])
    end

    test "create without context returns auth error" do
      assert {:error, _} = Resolver.create(nil, %{input: %{name: "x"}}, %{})
    end

    test "update + delete round-trip", %{org: org, site: site, ctx: ctx} do
      device =
        device_fixture(%{name: "Old", organization_id: org.id, site_id: site.id})

      assert {:ok, updated} =
               Resolver.update(nil, %{id: device.id, input: %{name: "New"}}, %{
                 context: ctx
               })

      assert updated.name == "New"

      assert {:ok, %{success: true}} =
               Resolver.delete(nil, %{id: device.id}, %{context: ctx})
    end

    test "update on cross-org id returns 'not found'",
         %{other_org: other_org, ctx: ctx} do
      foreign = device_fixture(%{organization_id: other_org.id})

      assert {:error, "Device not found"} =
               Resolver.update(nil, %{id: foreign.id, input: %{name: "x"}}, %{
                 context: ctx
               })
    end

    test "update / delete without context returns auth errors" do
      assert {:error, _} =
               Resolver.update(nil, %{id: Ecto.UUID.generate(), input: %{}}, %{})

      assert {:error, _} = Resolver.delete(nil, %{id: Ecto.UUID.generate()}, %{})
    end
  end

  describe "metrics/3" do
    test "returns [] for a device with no checks", %{org: org, site: site, ctx: ctx} do
      device =
        device_fixture(%{name: "NoChecks", organization_id: org.id, site_id: site.id})

      assert {:ok, []} =
               Resolver.metrics(
                 nil,
                 %{device_id: device.id, time_range: "24h"},
                 %{context: ctx}
               )
    end

    test "returns [] when device has a check but no results yet",
         %{org: org, site: site, ctx: ctx} do
      device =
        device_fixture(%{name: "PendingMetric", organization_id: org.id, site_id: site.id})

      {:ok, _check} =
        Towerops.Monitoring.create_check(%{
          name: "Inline Ping",
          check_type: "ping",
          device_id: device.id,
          organization_id: org.id,
          enabled: true,
          interval_seconds: 60,
          timeout_ms: 1000,
          config: %{"host" => "127.0.0.1"}
        })

      assert {:ok, []} =
               Resolver.metrics(
                 nil,
                 %{device_id: device.id, time_range: "24h"},
                 %{context: ctx}
               )
    end

    test "metrics without context returns auth error" do
      assert {:error, _} =
               Resolver.metrics(nil, %{device_id: Ecto.UUID.generate()}, %{})
    end

    test "metrics on cross-org id returns 'not found'",
         %{other_org: other_org, ctx: ctx} do
      foreign = device_fixture(%{organization_id: other_org.id})

      assert {:error, "Device not found"} =
               Resolver.metrics(
                 nil,
                 %{device_id: foreign.id, time_range: "1h"},
                 %{context: ctx}
               )
    end

    test "metrics falls back to 24h when time_range is unparseable",
         %{org: org, site: site, ctx: ctx} do
      device =
        device_fixture(%{name: "Fallback", organization_id: org.id, site_id: site.id})

      assert {:ok, _} =
               Resolver.metrics(
                 nil,
                 %{device_id: device.id, time_range: "garbage"},
                 %{context: ctx}
               )
    end
  end

  describe "interfaces/3" do
    test "returns [] when device has no snmp_device",
         %{org: org, site: site, ctx: ctx} do
      device =
        device_fixture(%{name: "NoSnmp", organization_id: org.id, site_id: site.id})

      assert {:ok, []} =
               Resolver.interfaces(nil, %{device_id: device.id}, %{context: ctx})
    end

    test "interfaces returns 'not found' for cross-org id",
         %{other_org: other_org, ctx: ctx} do
      foreign = device_fixture(%{organization_id: other_org.id})

      assert {:error, "Device not found"} =
               Resolver.interfaces(nil, %{device_id: foreign.id}, %{context: ctx})
    end

    test "interfaces without context returns auth error" do
      assert {:error, _} =
               Resolver.interfaces(nil, %{device_id: Ecto.UUID.generate()}, %{})
    end
  end
end