namespace profiles {

    export class ConnectionProfile {
        id: string;

        profile_name: string;
        default_username: string;
        default_password: string;

        selected_identity_type: string = "unset";
        identities: {[key:string]:identities.Identity} = {};

        constructor(id: string) {
            this.id = id;
        }

        selected_identity(current_type?: identities.IdentitifyType) : identities.Identity {
            if(!current_type)
                current_type = this.selected_type();

            if(current_type === undefined)
                return undefined;

            if(current_type == identities.IdentitifyType.TEAFORO) {
                return identities.static_forum_identity();
            } else if(current_type == identities.IdentitifyType.TEAMSPEAK || current_type == identities.IdentitifyType.NICKNAME) {
                return this.identities[this.selected_identity_type.toLowerCase()];
            }

            return undefined;
        }

        selected_type?() : identities.IdentitifyType {
            return identities.IdentitifyType[this.selected_identity_type.toUpperCase()];
        }

        set_identity(type: identities.IdentitifyType, identity: identities.Identity) {
            this.identities[identities.IdentitifyType[type].toLowerCase()] = identity;
        }

        spawn_identity_handshake_handler?(connection: ServerConnection) : HandshakeIdentityHandler {
            const identity = this.selected_identity();
            if(!identity)
                return undefined;
            return identity.spawn_identity_handshake_handler(connection);
        }

        encode?() : string {
            const identity_data = {};
            for(const key in this.identities)
                if(this.identities[key])
                    identity_data[key] = this.identities[key].encode();

            return JSON.stringify({
                version: 1,
                username: this.default_username,
                password: this.default_password,
                profile_name: this.profile_name,
                identity_type: this.selected_identity_type,
                identity_data: identity_data,
                id: this.id
            });
        }

        valid() : boolean {
            const identity = this.selected_identity();
            if(!identity || !identity.valid()) return false;

            return this.default_username !== undefined;
        }
    }

    async function decode_profile(data) : Promise<ConnectionProfile | string> {
        data = JSON.parse(data);
        if(data.version !== 1)
            return "invalid version";

        const result: ConnectionProfile = new ConnectionProfile(data.id);
        result.default_username = data.username;
        result.default_password = data.password;
        result.profile_name = data.profile_name;
        result.selected_identity_type = (data.identity_type || "").toLowerCase();

        if(data.identity_data) {
            for(const key in data.identity_data) {
                const type = identities.IdentitifyType[key.toUpperCase() as string];
                const _data = data.identity_data[key];
                if(type == undefined) continue;

                const identity = await identities.decode_identity(type, _data);
                if(identity == undefined) continue;

                result.identities[key.toLowerCase()] = identity;
            }
        }

        return result;
    }

    interface ProfilesData {
        version: number;
        profiles: string[];
    }

    let available_profiles: ConnectionProfile[] = [];
    export async function load() {
        available_profiles = [];

        const profiles_json = localStorage.getItem("profiles");
        let profiles_data: ProfilesData = profiles_json ? JSON.parse(profiles_json) : {version: 0} as any;

        if(profiles_data.version === 0) {
            profiles_data = {
                version: 1,
                profiles: []
            };
        }
        if(profiles_data.version == 1) {
            for(const profile_data of profiles_data.profiles) {
                const profile = await decode_profile(profile_data);
                if(typeof(profile) === 'string') {
                    console.error(tr("Failed to load profile. Reason: %s, Profile data: %s"), profile, profiles_data);
                    continue;
                }
                available_profiles.push(profile);
            }
        }

        if(!find_profile("default")) { //Create a default profile
            const profile = create_new_profile("default","default");
            profile.default_password = "";
            profile.default_username = "Another TeaSpeak user";
            profile.profile_name = "Default Profile";

            save();
        }
    }

    export function create_new_profile(name: string, id?: string) : ConnectionProfile {
        const profile = new ConnectionProfile(id || guid());
        profile.profile_name = name;
        profile.default_username = "Another TeaSpeak user";
        available_profiles.push(profile);
        return profile;
    }

    let _requires_save = false;
    export function save() {
        const profiles: string[] = [];
        for(const profile of available_profiles)
            profiles.push(profile.encode());

        const data = JSON.stringify({
            version: 1,
            profiles: profiles
        });
        localStorage.setItem("profiles", data);
    }

    export function mark_need_save() {
        _requires_save = true;
    }

    export function requires_save() : boolean {
        return _requires_save;
    }

    export function profiles() : ConnectionProfile[] {
        return available_profiles;
    }

    export function find_profile(id: string) : ConnectionProfile | undefined {
        for(const profile of profiles())
            if(profile.id == id)
                return profile;

        return undefined;
    }

    export function find_profile_by_name(name: string) : ConnectionProfile | undefined {
        name = name.toLowerCase();
        for(const profile of profiles())
            if((profile.profile_name || "").toLowerCase() == name)
                return profile;

        return undefined;
    }


    export function default_profile() : ConnectionProfile {
        return find_profile("default");
    }

    export function set_default_profile(profile: ConnectionProfile) {
        const old_default = default_profile();
        if(old_default && old_default != profile) {
            old_default.id = guid();
        }
        profile.id = "default";
    }

    export function delete_profile(profile: ConnectionProfile) {
        available_profiles.remove(profile);
    }
}