@use itertools::Itertools;
@use crate::data::RPC;
@use crate::generators::ts_c::*;

@(rpc: &RPC)
import @{ fetchEventSource @} from '@@microsoft/fetch-event-source';
@for e in &rpc.enums {
export enum @e.name @{
@for (k,v) in &e.values {    @k = @v,
}@}
}
@for s in &rpc.structs {
export interface @s.name @{
@for f in &s.fields {    @f.name: @ty_to_str(&f.ty);
}@}
}

export class MRPCConnector @{
    url: string;

    private __create_msg(service: string, method: string, data: any) @{
        return @{service, method, data@};
    @}

    public constructor(url: string) @{
        this.url = url;
    @}

@for s in &rpc.services { @for m in &s.methods {
    public @(s.name)_@(m.name)(@method_args(m))@method_ret(m) @{
        const __msg = this.__create_msg('@s.name', '@m.name', @{@m.args.iter().map(|a| &a.name).join(",")@});
        @if m.ret.is_some() && !m.ret_stream {return fetch(this.url, @{
            method: 'POST',
            body: JSON.stringify(__msg)
        @}).then((__r) => __r.json());}
        else if m.ret_stream {fetchEventSource(this.url, @{
            method: 'POST',
            body: JSON.stringify(__msg),
            onmessage: __e => __cbk(JSON.parse(__e.data))
        @});} else {fetch(this.url, @{method: 'POST', body: JSON.stringify(__msg)@});}
    @}
}}
@}