' these are needed for ServerInfo() inside session.server.Populate()
import "pkg:/source/api/userauth.brs"
import "pkg:/source/api/baserequest.brs"
import "pkg:/source/migrations.bs"

namespace session
    ' Initialize the global session array
    sub Init()
        m.global.addFields({
            session: {
                "memoryLevel": "normal",
                server: {},
                user: {
                    Configuration: {},
                    Policy: {},
                    settings: {},
                    lastRunVersion: invalid
                }
            }
        })
        session.user.settings.SaveDefaults()
    end sub

    ' Empty the global session array
    sub Delete()
        session.server.Delete()
        session.user.Logout()
    end sub

    ' Update one value from the global session array (m.global.session)
    sub Update(key as string, value = {} as object)
        ' validate parameters
        if key = "" or (key <> "user" and key <> "server") or value = invalid
            print "Error in session.Update(): Invalid parameters provided"
            return
        end if
        ' make copy of global session array
        tmpSession = m.global.session
        ' update the temp session array
        tmpSession.AddReplace(key, value)
        ' use the temp session array to update the global node
        m.global.setFields({ session: tmpSession })
        ' print "m.global.session." + key + " = ", m.global.session[key]
    end sub

    namespace server
        ' Empty the global server session array
        sub Delete()
            session.Update("server")
        end sub

        ' Add or update one value from the global server session array (m.global.session.server)
        sub Update(key as string, value as dynamic)
            ' validate parameters
            if key = "" or value = invalid then return
            ' make copy of global server session array
            tmpSessionServer = m.global.session.server
            ' update the temp server array
            tmpSessionServer[key] = value

            session.Update("server", tmpSessionServer)
        end sub

        ' Add or update the jellyfin server URL from the global server session array (m.global.session.server)
        ' Returns a boolean based on if a connection to the Jellyfin server was made
        function UpdateURL(value as string) as boolean
            ' validate parameters
            if value = "" then return false
            session.server.Update("url", value)

            success = session.server.Populate()
            if not success
                session.server.Delete()
            end if

            ' migrate registry if needed
            runGlobalMigrations()

            return success
        end function

        ' Use the saved server url to populate the global server session array (m.global.session.server)
        ' Returns a boolean based on if a connection to the Jellyfin server was made
        function Populate() as boolean
            ' validate server url
            if m.global.session.server.url = invalid or m.global.session.server.url = "" then return false
            ' get server info using API
            myServerInfo = ServerInfo()
            ' validate data returned from API
            if myServerInfo.id = invalid then return false
            ' make copy of global server session
            tmpSessionServer = m.global.session.server
            ' update the temp array
            tmpSessionServer.AddReplace("id", myServerInfo.Id)
            tmpSessionServer.AddReplace("name", myServerInfo.ServerName)
            tmpSessionServer.AddReplace("localURL", myServerInfo.LocalAddress)
            tmpSessionServer.AddReplace("os", myServerInfo.OperatingSystem)
            tmpSessionServer.AddReplace("startupWizardCompleted", myServerInfo.StartupWizardCompleted)
            tmpSessionServer.AddReplace("version", myServerInfo.Version)
            tmpSessionServer.AddReplace("hasError", myServerInfo.error)
            ' check urls for https
            isServerHTTPS = false
            if tmpSessionServer.url.left(8) = "https://" then isServerHTTPS = true
            tmpSessionServer.AddReplace("isHTTPS", isServerHTTPS)
            isLocalServerHTTPS = false
            if myServerInfo.LocalAddress <> invalid and myServerInfo.LocalAddress.left(8) = "https://" then isLocalServerHTTPS = true
            tmpSessionServer.AddReplace("isLocalHTTPS", isLocalServerHTTPS)
            ' update global server session using the temp array
            session.Update("server", tmpSessionServer)

            if m.global.app.isDev
                print "m.global.session.server = ", m.global.session.server
            end if

            return true
        end function
    end namespace

    namespace user

        ' Add or update one value from the global user session array (m.global.session.user)
        sub Update(key as string, value as dynamic)
            ' validate parameters
            if key = "" or value = invalid then return
            ' make copy of global user session
            tmpSessionUser = m.global.session.user
            ' update the temp user array
            tmpSessionUser[key] = value
            ' update global user session using the temp array
            session.Update("user", tmpSessionUser)
        end sub

        ' Update the global session after user is authenticated.
        ' Accepts a UserData.xml object from get_token() or an assocArray from AboutMe()
        sub Login(userData as object, saveCredentials = false as boolean)
            ' validate parameters
            if userData = invalid or userData.id = invalid then return
            ' make copy of global user session array
            tmpSession = m.global.session
            oldUserSettings = tmpSession.user.settings
            if userData.json = invalid
                ' we were passed data from AboutMe()
                myAuthToken = tmpSession.user.authToken
                tmpSession.AddReplace("user", userData)
                tmpSession.user.AddReplace("authToken", myAuthToken)
            else
                ' we were passed data from a UserData object
                tmpSession.AddReplace("user", userData.json.User)
                tmpSession.user.AddReplace("authToken", userData.json.AccessToken)
            end if
            ' remove special characters from name
            regex = CreateObject("roRegex", "[^a-zA-Z0-9\ \-\_]", "")
            friendlyName = regex.ReplaceAll(tmpSession.user.name, "")
            tmpSession.user.AddReplace("friendlyName", friendlyName)

            tmpSession.user.AddReplace("settings", oldUserSettings)
            ' update global user session
            session.Update("user", tmpSession.user)

            ' grab lastRunVersion for this user
            lastRunVersion = get_user_setting("LastRunVersion")
            if lastRunVersion <> invalid
                session.user.Update("LastRunVersion", lastRunVersion)
            end if

            ' update user session settings with values from registry
            userSettings = RegistryReadAll(tmpSession.user.id)
            for each setting in userSettings
                session.user.settings.Save(setting, userSettings[setting])
            end for

            if m.global.app.isDev
                print "m.global.session.user = ", m.global.session.user
                print "m.global.session.user.Configuration = ", m.global.session.user.Configuration
                print "m.global.session.user.Policy = ", m.global.session.user.Policy
                print "m.global.session.user.settings = ", m.global.session.user.settings
            end if

            set_user_setting("serverId", m.global.session.server.id)

            if saveCredentials
                set_user_setting("token", tmpSession.user.authToken)
                set_user_setting("username", tmpSession.user.name)
            end if

            session.user.LoadUserPreferences()
        end sub

        ' Sets the global server device name value used by the API
        sub SetServerDeviceName()
            if isValid(m.global.session.user) and isValid(m.global.session.user.friendlyName)
                m.global.device.serverDeviceName = m.global.device.id + m.global.session.user.friendlyName
            else
                m.global.device.serverDeviceName = m.global.device.id
            end if
        end sub

        ' Load and parse Display Settings from server
        sub LoadUserPreferences()
            ' Save device id so we don't calculate it every time we need it
            session.user.SetServerDeviceName()

            id = m.global.session.user.id
            ' Currently using client "emby", which is what website uses so we get same Display prefs as web.
            ' May want to change to specific Roku display settings
            url = Substitute("DisplayPreferences/usersettings?userId={0}&client=emby", id)
            resp = APIRequest(url)
            jsonResponse = getJson(resp)

            if isValid(jsonResponse) and isValid(jsonResponse.CustomPrefs)
                session.user.SaveUserHomeSections(jsonResponse.CustomPrefs)

                if isValid(jsonResponse.CustomPrefs["landing-livetv"])
                    set_user_setting("display.livetv.landing", jsonResponse.CustomPrefs["landing-livetv"])
                else
                    unset_user_setting("display.livetv.landing")
                end if
            else
                unset_user_setting("display.livetv.landing")
            end if
        end sub

        ' Saves user's web client home sections as Roku user settings.
        ' Handles unsupported sections and ignores duplicates.
        sub SaveUserHomeSections(customPrefs as object)
            userPreferences = customPrefs
            rowTypes = []

            ' If user has no section preferences, use default settings
            if not userPreferences.doesExist("homesection0")
                userPreferences = {
                    homesection0: "smalllibrarytiles",
                    homesection1: "resume",
                    homesection2: "nextup",
                    homesection3: "latestmedia",
                    homesection4: "livetv",
                    homesection5: "none",
                    homesection6: "none"
                }
            end if

            for i = 0 to 6
                homeSectionKey = "homesection" + i.toStr()

                ' If home section doesn't exist, create it as a none row
                if not userPreferences.DoesExist(homeSectionKey)
                    userPreferences.AddReplace(homeSectionKey, "none")
                end if

                rowType = LCase(userPreferences[homeSectionKey])

                ' Just in case we get invalid data
                if not isValid(rowType) then rowType = "none"

                ' Small size library item buttons - Currently unsupported, use small library titles
                if rowType = "librarybuttons"
                    rowType = "smalllibrarytiles"
                end if

                ' None is the only section type allowed to have duplicates
                ' For all other types, only accept the 1st entry
                if inArray(rowTypes, rowType)
                    set_user_setting(homeSectionKey, "none")
                else
                    set_user_setting(homeSectionKey, rowType)

                    if rowType <> "none"
                        rowTypes.push(rowType)
                    end if
                end if
            end for
        end sub

        ' Empty the global user session array and reload defaults
        sub Logout()
            session.Update("user", {
                Configuration: {},
                Policy: {},
                settings: {}
            })
            ' reload default user settings
            session.user.settings.SaveDefaults()
        end sub

        namespace settings
            ' Delete the user setting from the global session (m.global.session.user.settings)
            sub Delete(name as string)
                ' validate parameters
                if name = "" then return
                tmpSettingArray = m.global.session.user.settings
                ' update the temp user array
                tmpSettingArray.Delete(name)
                ' update global user session using the temp array
                session.user.Update("settings", tmpSettingArray)
            end sub

            ' Read the user setting from the global session (m.global.session.user.settings)
            function Read(name as string) as dynamic
                ' validate parameters
                if name = "" then return invalid

                if m.global.session.user.settings[name] <> invalid
                    return m.global.session.user.settings[name]
                else
                    return invalid
                end if
            end function

            ' retrieve all default user settings from Config Tree
            sub SaveDefaults()
                configTree = GetConfigTree()
                if configTree = invalid then return

                for each item in configTree
                    if item.default <> invalid and item.settingName <> invalid
                        session.user.settings.Save(item.settingName, item.default)
                    else if item.children <> invalid and item.children.Count() > 0
                        for each child in item.children
                            if child.default <> invalid and child.settingName <> invalid
                                session.user.settings.Save(child.settingName, child.default)
                            else if child.children <> invalid and child.children.Count() > 0
                                for each child in child.children
                                    if child.default <> invalid and child.settingName <> invalid
                                        session.user.settings.Save(child.settingName, child.default)
                                    else if child.children <> invalid and child.children.Count() > 0
                                        for each child in child.children
                                            if child.default <> invalid and child.settingName <> invalid
                                                session.user.settings.Save(child.settingName, child.default)
                                            else if child.children <> invalid and child.children.Count() > 0
                                                for each child in child.children
                                                    if child.default <> invalid and child.settingName <> invalid
                                                        session.user.settings.Save(child.settingName, child.default)
                                                    else if child.children <> invalid and child.children.Count() > 0
                                                        for each child in child.children
                                                            if child.default <> invalid and child.settingName <> invalid
                                                                session.user.settings.Save(child.settingName, child.default)
                                                            end if
                                                        end for
                                                    end if
                                                end for
                                            end if
                                        end for
                                    end if
                                end for
                            end if
                        end for
                    end if
                end for

                ' load globals
                session.user.settings.LoadGlobals()
            end sub

            ' Grab global vars from registry and overwrite defaults
            sub LoadGlobals()
                ' search main registry block for all keys that start with "global."
                jfRegistry = RegistryReadAll("Jellyfin")
                for each item in jfRegistry
                    if Left(item, 7) = "global."
                        session.user.settings.Save(item, get_setting(item))
                    end if
                end for

                ' Reset server device name state
                session.user.SetServerDeviceName()
            end sub

            ' Saves the user setting to the global session.
            ' This also converts strings to boolean as necessary before saving to global session
            sub Save(name as string, value as string)
                if name = invalid or value = invalid then return
                tmpSettingArray = m.global.session.user.settings
                convertedValue = value

                ' convert to boolean
                if value = "true"
                    convertedValue = true
                else if value = "false"
                    convertedValue = false
                end if

                tmpSettingArray[name] = convertedValue

                session.user.Update("settings", tmpSettingArray)
            end sub
        end namespace
    end namespace
end namespace