// SPDX-License-Identifier: PMPL-1.0-or-later
// SPDX-FileCopyrightText: 2025 Jonathan D.A. Jewell
/// Core adapter types for polyglot-db-mcp
type paramDef = {
@as("type") type_: string,
description: string,
}
type toolDef<'params, 'result> = {
description: string,
params: Js.Dict.t<paramDef>,
handler: 'params => promise<'result>,
}
type toolDefAny = {
description: string,
params: Js.Dict.t<paramDef>,
handler: Js.Dict.t<Js.Json.t> => promise<Js.Json.t>,
}
/// Standard adapter interface
module type Adapter = {
let name: string
let description: string
let connect: unit => promise<unit>
let disconnect: unit => promise<unit>
let isConnected: unit => promise<bool>
let tools: Js.Dict.t<toolDefAny>
}
/// Helper to create param definitions
let stringParam = (desc: string): paramDef => {type_: "string", description: desc}
let numberParam = (desc: string): paramDef => {type_: "number", description: desc}
let boolParam = (desc: string): paramDef => {type_: "boolean", description: desc}
/// Helper to create a params dict
let makeParams = (pairs: array<(string, paramDef)>): Js.Dict.t<paramDef> => {
let dict = Js.Dict.empty()
pairs->Array.forEach(((k, v)) => Js.Dict.set(dict, k, v))
dict
}
/// Result helpers
let okResult = (data: 'a): Js.Json.t => Obj.magic(data)
let errorResult = (msg: string): Js.Json.t => Obj.magic({"error": msg})
