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silverbullet/web/syscalls/system.ts
2023-08-29 21:17:29 +02:00

78 lines
2.2 KiB
TypeScript

import type { Plug } from "../../plugos/plug.ts";
import { SysCallMapping, System } from "../../plugos/system.ts";
import type { Client } from "../client.ts";
import { CommandDef } from "../hooks/command.ts";
import { proxySyscall } from "./util.ts";
export function systemSyscalls(
system: System<any>,
client?: Client,
): SysCallMapping {
const api: SysCallMapping = {
"system.invokeFunction": (
ctx,
name: string,
...args: any[]
) => {
if (!ctx.plug) {
throw Error("No plug associated with context");
}
if (name === "server" || name === "client") {
// Backwards compatibility mode (previously there was an 'env' argument)
name = args[0];
args = args.slice(1);
}
let plug: Plug<any> | undefined = ctx.plug;
if (name.indexOf(".") !== -1) {
// plug name in the name
const [plugName, functionName] = name.split(".");
plug = system.loadedPlugs.get(plugName);
if (!plug) {
throw Error(`Plug ${plugName} not found`);
}
name = functionName;
}
const functionDef = plug.manifest!.functions[name];
if (!functionDef) {
throw Error(`Function ${name} not found`);
}
if (
client && functionDef.env && system.env &&
functionDef.env !== system.env
) {
// Proxy to another environment
return proxySyscall(ctx, client.remoteSpacePrimitives, name, args);
}
return plug.invoke(name, args);
},
"system.invokeCommand": (_ctx, name: string) => {
if (!client) {
throw new Error("Not supported");
}
return client.runCommandByName(name);
},
"system.listCommands": (): { [key: string]: CommandDef } => {
if (!client) {
throw new Error("Not supported");
}
const allCommands: { [key: string]: CommandDef } = {};
for (const [cmd, def] of client.system.commandHook.editorCommands) {
allCommands[cmd] = def.command;
}
return allCommands;
},
"system.reloadPlugs": () => {
if (!client) {
throw new Error("Not supported");
}
return client.loadPlugs();
},
"system.getEnv": () => {
return system.env;
},
};
return api;
}