--
-- (C) 2013-20 - ntop.org
--
local dirs = ntop.getDirs()
package.path = dirs.installdir .. "/scripts/lua/modules/?.lua;" .. package.path

require "lua_utils"
local delete_data_utils = require "delete_data_utils"
local template_utils = require "template_utils"
local ui_utils = require "ui_utils"
local page_utils = require("page_utils")

local is_system_interface = page_utils.is_system_view()

local page

if (_GET['page']) then

    page = _GET['page']

    -- if the user tries to get the export/delete page in system interface
    -- then send him to the system interface default page
    -- Same thing for the non system interface pages
    if ((page == 'export' or page == 'delete') and is_system_interface) then
        page = 'system_interface_data'
    elseif ((page == 'inactive_interfaces_data' or page == 'system_interface_data') and not is_system_interface) then
        page = 'export'
    end

else
    page = ternary(is_system_interface, 'system_interface_data', 'export')
end

local info = ntop.getInfo()

local delete_data_utils = require "delete_data_utils"

sendHTTPContentTypeHeader('text/html')

page_utils.set_active_menu_entry(page_utils.menu_entries.manage_data)

dofile(dirs.installdir .. "/scripts/lua/inc/menu.lua")

-- import the modals if we are inside system interface pages
if is_system_interface then
    dofile(dirs.installdir .. "/scripts/lua/inc/manage_data.lua")
else
    if _POST and table.len(_POST) > 0 and isAdministrator() then

        if _POST["delete_active_if_data"] then

            -- Data for the active interface can't be hot-deleted.
            -- a restart of ntopng is required so we just mark the deletion.
            delete_data_utils.request_delete_active_interface_data(_POST["ifid"])

            print(
                '<div class="alert alert-success alert-dismissable"><a href="" class="close" data-dismiss="alert" aria-label="close">&times;</a>' ..
                    i18n('delete_data.delete_active_interface_data_ok',
                        {ifname = ifname, product = ntop.getInfo().product}) ..
                    '</div>')

        else -- we're deleting an host

            local host_info = url2hostinfo(_POST)
            local parts = split(host_info["host"], "/")
            local res

            if (#parts == 2) and (tonumber(parts[2]) ~= nil) then
                res = delete_data_utils.delete_network(_POST["ifid"], parts[1],
                                                    parts[2],
                                                    host_info["vlan"] or 0)
            else
                res = delete_data_utils.delete_host(_POST["ifid"], host_info)
            end

            local err_msgs = {}

            for what, what_res in pairs(res) do
                if what_res["status"] ~= "OK" then
                    err_msgs[#err_msgs + 1] =
                        i18n(delete_data_utils.status_to_i18n(what_res["status"]))
                end
            end

            if #err_msgs == 0 then
                print(
                    '<div class="alert alert-success alert-dismissable"><a href="" class="close" data-dismiss="alert" aria-label="close">&times;</a>' ..
                        i18n('delete_data.delete_ok',
                            {host = hostinfo2hostkey(host_info)}) .. '</div>')
            else
                print(
                    '<div class="alert alert-danger alert-dismissable"><a href="" class="close" data-dismiss="alert" aria-label="close">&times;</a>' ..
                        i18n('delete_data.delete_failed',
                            {host = hostinfo2hostkey(host_info)}) .. ' ' ..
                        table.concat(err_msgs, ' ') .. '</div>')
            end

        end
    end
end

local delete_active_interface_requested =
    delete_data_utils.delete_active_interface_data_requested(ifname)

local inactive_interfaces = delete_data_utils.list_inactive_interfaces()
local num_inactive_interfaces = ternary(not ntop.isnEdge(), table.len(inactive_interfaces or {}), 0)
local delete_active_interface_requested_system = delete_data_utils.delete_active_interface_data_requested(getSystemInterfaceId())

page_utils.print_page_title(i18n("manage_data.manage_data"))

local is_system_interface = page_utils.is_system_view()
local is_admin = isAdministrator()

local menu = {
  entries = {
    {
        key = 'export',
        title = i18n("manage_data.export_tab"),
        url = "?page=export",
        hidden = is_system_interface
    },
    {
        key = 'delete',
        title = i18n("manage_data.delete_tab"),
        url = "?page=delete",
        hidden = not is_admin or is_system_interface,
     },
    {
        key = 'system_interface_data',
        title = i18n("manage_data.system_interface_data"),
        url = "?page=system_interface_data",
        hidden = not is_admin or not is_system_interface,
    },
    {
        key = "inactive_interfaces_data",
        url = "?page=inactive_interfaces_data",
        title = i18n("manage_data.inactive_interfaces_data"),
        hidden = not is_system_interface or not is_admin
    }
  },
  current_page = page
}

local notes = {
  export = {
    {content = i18n('export_data.note_maximum_number')},
    {content = i18n('export_data.note_active_hosts')}
  },
  delete = {
    {content = i18n('delete_data.note_persistent_data')},
    {content = i18n('manage_data.system_interface_note')},
    {content = i18n('delete_data.node_nindex_flows'), hidden = not interfaceHasNindexSupport() }
  }
}

print(template_utils.gen("pages/manage_data.template", {
  menu = menu,
  template_utils = template_utils,
  ui_utils = ui_utils,
  manage_data = {
    page = page,
    note = notes[page],
    delete_active_interface_requested = delete_active_interface_requested,
    num_inactive_interfaces = num_inactive_interfaces,
    delete_active_interface_requested_system = delete_active_interface_requested_system
  }
}))

if not delete_active_interface_requested then
    print(template_utils.gen("modal_confirm_dialog.html", {
        dialog = {
            id = "delete_active_interface_data",
            action = "delete_interfaces_data('delete_active_if_data')",
            title = i18n("manage_data.delete_active_interface"),
            message = i18n("delete_data.delete_active_interface_confirmation", {
                ifname = "<span id='interface-name-to-delete'></span>",
                product = ntop.getInfo().product
            }),
            confirm = i18n("delete"),
            confirm_button = "btn-danger"
        }
    }))
end

print(template_utils.gen("modal_confirm_dialog.html", {
    dialog = {
        id = "delete_data",
        action = "delete_data()",
        title = i18n("manage_data.delete"),
        message = i18n("delete_data.delete_confirmation", {
            host = '<span id="modal_host"></span><span id="modal_vlan"></span>'
        }),
        confirm = i18n("delete"),
        confirm_button = "btn-danger"
    }
}))

dofile(dirs.installdir .. "/scripts/lua/inc/footer.lua")
