# frozen_string_literal: true

RSpec.describe Admin::GroupsController do
  fab!(:admin) { Fabricate(:admin) }
  fab!(:moderator) { Fabricate(:moderator) }
  fab!(:user) { Fabricate(:user) }
  fab!(:group) { Fabricate(:group) }

  describe "#create" do
    let(:group_params) do
      {
        group: {
          name: "testing",
          usernames: [admin.username, user.username].join(","),
          owner_usernames: [user.username].join(","),
          allow_membership_requests: true,
          membership_request_template: "Testing",
          members_visibility_level: Group.visibility_levels[:staff],
        },
      }
    end

    context "when logged in as an admin" do
      before { sign_in(admin) }

      it "should work" do
        post "/admin/groups.json", params: group_params

        expect(response.status).to eq(200)

        group = Group.last

        expect(group.name).to eq("testing")
        expect(group.users).to contain_exactly(admin, user)
        expect(group.allow_membership_requests).to eq(true)
        expect(group.membership_request_template).to eq("Testing")
        expect(group.members_visibility_level).to eq(Group.visibility_levels[:staff])
      end

      context "with custom_fields" do
        before do
          plugin = Plugin::Instance.new
          plugin.register_editable_group_custom_field :test
        end

        after { DiscoursePluginRegistry.reset! }

        it "only updates allowed user fields" do
          params = group_params
          params[:group].merge!(custom_fields: { test: :hello1, test2: :hello2 })

          post "/admin/groups.json", params: params

          group = Group.last

          expect(response.status).to eq(200)
          expect(group.custom_fields["test"]).to eq("hello1")
          expect(group.custom_fields["test2"]).to be_blank
        end

        it "is secure when there are no registered editable fields" do
          DiscoursePluginRegistry.reset!
          params = group_params
          params[:group].merge!(custom_fields: { test: :hello1, test2: :hello2 })

          post "/admin/groups.json", params: params

          group = Group.last

          expect(response.status).to eq(200)
          expect(group.custom_fields["test"]).to be_blank
          expect(group.custom_fields["test2"]).to be_blank
        end
      end

      context "with Group.plugin_permitted_params" do
        after { DiscoursePluginRegistry.reset! }

        it "filter unpermitted params" do
          params = group_params
          params[:group].merge!(allow_unknown_sender_topic_replies: true)

          post "/admin/groups.json", params: params
          expect(Group.last.allow_unknown_sender_topic_replies).to eq(false)
        end

        it "allows plugin to allow custom params" do
          params = group_params
          params[:group].merge!(allow_unknown_sender_topic_replies: true)

          plugin = Plugin::Instance.new
          plugin.register_group_param :allow_unknown_sender_topic_replies

          post "/admin/groups.json", params: params
          expect(Group.last.allow_unknown_sender_topic_replies).to eq(true)
        end
      end
    end

    context "when logged in as a moderator" do
      before { sign_in(moderator) }

      context "with moderators_manage_categories_and_groups enabled" do
        before { SiteSetting.moderators_manage_categories_and_groups = true }

        it "creates group" do
          expect do post "/admin/groups.json", params: group_params end.to change {
            Group.count
          }.by(1)

          expect(response.status).to eq(200)

          group = Group.last

          expect(group.name).to eq("testing")
          expect(group.users).to contain_exactly(admin, user)
          expect(group.allow_membership_requests).to eq(true)
          expect(group.membership_request_template).to eq("Testing")
          expect(group.members_visibility_level).to eq(Group.visibility_levels[:staff])
        end
      end

      context "with moderators_manage_categories_and_groups disabled" do
        before { SiteSetting.moderators_manage_categories_and_groups = false }

        it "prevents creation with a 403 response" do
          expect do post "/admin/groups.json", params: group_params end.to_not change {
            Group.count
          }

          expect(response.status).to eq(403)
          expect(response.parsed_body["errors"]).to include(I18n.t("invalid_access"))
        end
      end
    end

    context "when logged in as a non-staff user" do
      before { sign_in(user) }

      it "prevents creation with a 404 response" do
        expect do post "/admin/groups.json", params: group_params end.to_not change { Group.count }

        expect(response.status).to eq(404)
        expect(response.parsed_body["errors"]).to include(I18n.t("not_found"))
      end
    end
  end

  describe "#add_owners" do
    context "when logged in as an admin" do
      before { sign_in(admin) }

      it "should work" do
        put "/admin/groups/#{group.id}/owners.json",
            params: {
              group: {
                usernames: [user.username, admin.username].join(","),
              },
            }

        expect(response.status).to eq(200)

        response_body = response.parsed_body

        expect(response_body["usernames"]).to contain_exactly(user.username, admin.username)

        expect(group.group_users.where(owner: true).map(&:user)).to contain_exactly(user, admin)
      end

      it "returns not-found error when there is no group" do
        group.destroy!

        put "/admin/groups/#{group.id}/owners.json", params: { group: { usernames: user.username } }

        expect(response.status).to eq(404)
      end

      it "does not allow adding owners to an automatic group" do
        group.update!(automatic: true)

        expect do
          put "/admin/groups/#{group.id}/owners.json",
              params: {
                group: {
                  usernames: user.username,
                },
              }
        end.to_not change { group.group_users.count }

        expect(response.status).to eq(422)
        expect(response.parsed_body["errors"]).to eq(["You cannot modify an automatic group"])
      end

      it "does not notify users when the param is not present" do
        put "/admin/groups/#{group.id}/owners.json", params: { group: { usernames: user.username } }
        expect(response.status).to eq(200)

        topic =
          Topic.find_by(
            title:
              I18n.t(
                "system_messages.user_added_to_group_as_owner.subject_template",
                group_name: group.name,
              ),
            archetype: "private_message",
          )
        expect(topic.nil?).to eq(true)
      end

      it "notifies users when the param is present" do
        put "/admin/groups/#{group.id}/owners.json",
            params: {
              group: {
                usernames: user.username,
                notify_users: true,
              },
            }
        expect(response.status).to eq(200)

        topic =
          Topic.find_by(
            title:
              I18n.t(
                "system_messages.user_added_to_group_as_owner.subject_template",
                group_name: group.name,
              ),
            archetype: "private_message",
          )
        expect(topic.nil?).to eq(false)
        expect(topic.topic_users.map(&:user_id)).to include(-1, user.id)
      end
    end

    context "when logged in as a moderator" do
      before { sign_in(moderator) }

      context "with moderators_manage_categories_and_groups enabled" do
        before { SiteSetting.moderators_manage_categories_and_groups = true }

        it "adds owners" do
          put "/admin/groups/#{group.id}/owners.json",
              params: {
                group: {
                  usernames: [user.username, admin.username, moderator.username].join(","),
                },
              }

          response_body = response.parsed_body

          expect(response.status).to eq(200)
          expect(response_body["usernames"]).to contain_exactly(
            user.username,
            admin.username,
            moderator.username,
          )
          expect(group.group_users.where(owner: true).map(&:user)).to contain_exactly(
            user,
            admin,
            moderator,
          )
        end
      end

      context "with moderators_manage_categories_and_groups disabled" do
        before { SiteSetting.moderators_manage_categories_and_groups = false }

        it "prevents adding of owners with a 403 response" do
          put "/admin/groups/#{group.id}/owners.json",
              params: {
                group: {
                  usernames: [user.username, admin.username, moderator.username].join(","),
                },
              }

          expect(response.status).to eq(403)
          expect(response.parsed_body["errors"]).to include(I18n.t("invalid_access"))
          expect(group.group_users.where(owner: true).map(&:user)).to be_empty
        end
      end
    end

    context "when logged in as a non-staff user" do
      before { sign_in(user) }

      it "prevents adding of owners with a 404 response" do
        put "/admin/groups/#{group.id}/owners.json",
            params: {
              group: {
                usernames: [user.username, admin.username].join(","),
              },
            }

        expect(response.status).to eq(404)
        expect(response.parsed_body["errors"]).to include(I18n.t("not_found"))
        expect(group.group_users.where(owner: true).map(&:user)).to be_empty
      end
    end
  end

  describe "#remove_owner" do
    let(:user2) { Fabricate(:user) }
    let(:user3) { Fabricate(:user) }

    context "when logged in as an admin" do
      before { sign_in(admin) }

      it "should work" do
        group.add_owner(user)

        delete "/admin/groups/#{group.id}/owners.json", params: { user_id: user.id }

        expect(response.status).to eq(200)
        expect(group.group_users.where(owner: true)).to eq([])
      end

      it "should work with multiple users" do
        group.add_owner(user)
        group.add_owner(user3)

        delete "/admin/groups/#{group.id}/owners.json",
               params: {
                 group: {
                   usernames: "#{user.username},#{user2.username},#{user3.username}",
                 },
               }

        expect(response.status).to eq(200)
        expect(group.group_users.where(owner: true)).to eq([])
      end

      it "returns not-found error when there is no group" do
        group.destroy!

        delete "/admin/groups/#{group.id}/owners.json", params: { user_id: user.id }

        expect(response.status).to eq(404)
      end

      it "does not allow removing owners from an automatic group" do
        group.update!(automatic: true)

        delete "/admin/groups/#{group.id}/owners.json", params: { user_id: user.id }

        expect(response.status).to eq(422)
        expect(response.parsed_body["errors"]).to eq(["You cannot modify an automatic group"])
      end
    end

    context "when logged in as a moderator" do
      before { sign_in(moderator) }

      context "with moderators_manage_categories_and_groups enabled" do
        before { SiteSetting.moderators_manage_categories_and_groups = true }

        it "removes owner" do
          group.add_owner(user)

          delete "/admin/groups/#{group.id}/owners.json", params: { user_id: user.id }

          expect(response.status).to eq(200)
          expect(group.group_users.where(owner: true)).to eq([])
        end
      end

      context "with moderators_manage_categories_and_groups disabled" do
        before { SiteSetting.moderators_manage_categories_and_groups = false }

        it "prevents owner removal with a 403 response" do
          group.add_owner(user)

          delete "/admin/groups/#{group.id}/owners.json", params: { user_id: user.id }

          expect(response.status).to eq(403)
          expect(response.parsed_body["errors"]).to include(I18n.t("invalid_access"))
          expect(group.group_users.where(owner: true).map(&:user)).to contain_exactly(user)
        end
      end
    end

    context "when logged in as a non-staff user" do
      before { sign_in(user) }

      it "prevents owner removal with a 404 response" do
        group.add_owner(user)

        delete "/admin/groups/#{group.id}/owners.json", params: { user_id: user.id }

        expect(response.status).to eq(404)
        expect(response.parsed_body["errors"]).to include(I18n.t("not_found"))
        expect(group.group_users.where(owner: true).map(&:user)).to contain_exactly(user)
      end
    end
  end

  describe "#set_primary" do
    let(:user2) { Fabricate(:user) }
    let(:user3) { Fabricate(:user) }

    context "when logged in as an admin" do
      before { sign_in(admin) }

      it "sets with multiple users" do
        user2.update!(primary_group_id: group.id)

        put "/admin/groups/#{group.id}/primary.json",
            params: {
              group: {
                usernames: "#{user.username},#{user2.username},#{user3.username}",
              },
              primary: "true",
            }

        expect(response.status).to eq(200)
        expect(User.where(primary_group_id: group.id).size).to eq(3)
      end

      it "unsets with multiple users" do
        user.update!(primary_group_id: group.id)
        user3.update!(primary_group_id: group.id)

        put "/admin/groups/#{group.id}/primary.json",
            params: {
              group: {
                usernames: "#{user.username},#{user2.username},#{user3.username}",
              },
              primary: "false",
            }

        expect(response.status).to eq(200)
        expect(User.where(primary_group_id: group.id).size).to eq(0)
      end
    end

    context "when logged in as a moderator" do
      before { sign_in(moderator) }

      context "with moderators_manage_categories_and_groups enabled" do
        before { SiteSetting.moderators_manage_categories_and_groups = true }

        it "sets multiple primary users" do
          user2.update!(primary_group_id: group.id)

          put "/admin/groups/#{group.id}/primary.json",
              params: {
                group: {
                  usernames: "#{user.username},#{user2.username},#{user3.username}",
                },
                primary: "true",
              }

          expect(response.status).to eq(200)
          expect(User.where(primary_group_id: group.id).size).to eq(3)
        end
      end

      context "with moderators_manage_categories_and_groups disabled" do
        before { SiteSetting.moderators_manage_categories_and_groups = false }

        it "prevents setting of primary group with a 403 response" do
          user2.update!(primary_group_id: group.id)

          put "/admin/groups/#{group.id}/primary.json",
              params: {
                group: {
                  usernames: "#{user.username},#{user2.username},#{user3.username}",
                },
                primary: "true",
              }

          expect(response.status).to eq(403)
          expect(response.parsed_body["errors"]).to include(I18n.t("invalid_access"))
          expect(User.where(primary_group_id: group.id).size).to eq(1)
        end
      end
    end

    context "when logged in as a non-staff user" do
      before { sign_in(user) }

      it "prevents setting of primary user with a 404 response" do
        user2.update!(primary_group_id: group.id)

        put "/admin/groups/#{group.id}/primary.json",
            params: {
              group: {
                usernames: "#{user.username},#{user2.username},#{user3.username}",
              },
              primary: "true",
            }

        expect(response.status).to eq(404)
        expect(response.parsed_body["errors"]).to include(I18n.t("not_found"))
        expect(User.where(primary_group_id: group.id).size).to eq(1)
      end
    end
  end

  describe "#destroy" do
    context "when logged in as an admin" do
      before { sign_in(admin) }

      it "should return the right response for an invalid group_id" do
        max_id = Group.maximum(:id).to_i
        delete "/admin/groups/#{max_id + 1}.json"
        expect(response.status).to eq(404)
      end

      it "logs when a group is destroyed" do
        delete "/admin/groups/#{group.id}.json"

        history = UserHistory.where(acting_user: admin).last

        expect(history).to be_present
        expect(history.details).to include("name: #{group.name}")
        expect(history.details).to include("id: #{group.id}")
      end

      it "logs the grant_trust_level attribute" do
        trust_level = TrustLevel[4]
        group.update!(grant_trust_level: trust_level)
        delete "/admin/groups/#{group.id}.json"

        history = UserHistory.where(acting_user: admin).last

        expect(history).to be_present
        expect(history.details).to include("grant_trust_level: #{trust_level}")
        expect(history.details).to include("name: #{group.name}")
      end

      context "when group is automatic" do
        it "returns the right response" do
          group.update!(automatic: true)

          delete "/admin/groups/#{group.id}.json"

          expect(response.status).to eq(422)
          expect(Group.find(group.id)).to eq(group)
        end
      end

      context "when group is not automatic" do
        it "returns the right response" do
          delete "/admin/groups/#{group.id}.json"

          expect(response.status).to eq(200)
          expect(Group.find_by(id: group.id)).to eq(nil)
        end
      end
    end

    shared_examples "group deletion not allowed" do
      it "prevents deletion with a 404 response" do
        expect do delete "/admin/groups/#{group.id}.json" end.not_to change { Group.count }

        expect(response.status).to eq(404)
        expect(response.parsed_body["errors"]).to include(I18n.t("not_found"))
      end
    end

    context "when logged in as a moderator" do
      before { sign_in(moderator) }

      context "with moderators_manage_categories_and_groups enabled" do
        before { SiteSetting.moderators_manage_categories_and_groups = true }

        include_examples "group deletion not allowed"
      end

      context "with moderators_manage_categories_and_groups disabled" do
        before { SiteSetting.moderators_manage_categories_and_groups = false }

        include_examples "group deletion not allowed"
      end
    end

    context "when logged in as a non-staff user" do
      before { sign_in(user) }

      include_examples "group deletion not allowed"
    end
  end

  describe "#automatic_membership_count" do
    context "when logged in as admin" do
      before { sign_in(admin) }

      it "returns count of users whose emails match the domain" do
        Fabricate(:user, email: "user1@somedomain.org")
        Fabricate(:user, email: "user1@somedomain.com")
        Fabricate(:user, email: "user1@notsomedomain.com")
        group = Fabricate(:group)

        put "/admin/groups/automatic_membership_count.json",
            params: {
              automatic_membership_email_domains: "somedomain.org|somedomain.com",
              id: group.id,
            }
        expect(response.status).to eq(200)
        expect(response.parsed_body["user_count"]).to eq(2)
      end

      it "doesn't responde with 500 if domain is invalid" do
        group = Fabricate(:group)

        put "/admin/groups/automatic_membership_count.json",
            params: {
              automatic_membership_email_domains: "@somedomain.org|@somedomain.com",
              id: group.id,
            }
        expect(response.status).to eq(200)
        expect(response.parsed_body["user_count"]).to eq(0)
      end
    end

    shared_examples "automatic membership count inaccessible" do
      it "denies access with a 404 response" do
        put "/admin/groups/automatic_membership_count.json",
            params: {
              automatic_membership_email_domains: "somedomain.org|somedomain.com",
              id: group.id,
            }

        expect(response.status).to eq(404)
        expect(response.parsed_body["errors"]).to include(I18n.t("not_found"))
      end
    end

    context "when logged in as a moderator" do
      before { sign_in(moderator) }

      context "with moderators_manage_categories_and_groups enabled" do
        before { SiteSetting.moderators_manage_categories_and_groups = true }

        include_examples "automatic membership count inaccessible"
      end

      context "with moderators_manage_categories_and_groups disabled" do
        before { SiteSetting.moderators_manage_categories_and_groups = false }

        include_examples "automatic membership count inaccessible"
      end
    end

    context "when logged in as a non-staff user" do
      before { sign_in(user) }

      include_examples "automatic membership count inaccessible"
    end
  end
end