import { MCP } from "@/mcp"
import { Effect, Layer, Schema } from "effect"
import { HttpApi, HttpApiBuilder, HttpApiEndpoint, HttpApiGroup, OpenApi } from "effect/unstable/httpapi"

export const McpPaths = {
  status: "/mcp",
} as const

export const McpApi = HttpApi.make("mcp")
  .add(
    HttpApiGroup.make("mcp")
      .add(
        HttpApiEndpoint.get("status", McpPaths.status, {
          success: Schema.Record(Schema.String, MCP.Status),
        }).annotateMerge(
          OpenApi.annotations({
            identifier: "mcp.status",
            summary: "Get MCP status",
            description: "Get the status of all Model Context Protocol (MCP) servers.",
          }),
        ),
      )
      .annotateMerge(
        OpenApi.annotations({
          title: "mcp",
          description: "Experimental HttpApi MCP routes.",
        }),
      ),
  )
  .annotateMerge(
    OpenApi.annotations({
      title: "opencode experimental HttpApi",
      version: "0.0.1",
      description: "Experimental HttpApi surface for selected instance routes.",
    }),
  )

export const mcpHandlers = Layer.unwrap(
  Effect.gen(function* () {
    const mcp = yield* MCP.Service

    const status = Effect.fn("McpHttpApi.status")(function* () {
      return yield* mcp.status()
    })

    return HttpApiBuilder.group(McpApi, "mcp", (handlers) => handlers.handle("status", status))
  }),
).pipe(Layer.provide(MCP.defaultLayer))