import { Tool } from "@modelcontextprotocol/sdk/types.js";
import { ListProposalsArgsSchema, ListProposalsArgs } from "../../schemas/upwork.js";
import { UpworkClient } from "../../services/upwork-client.js";

export const listProposalsToolDefinition: Tool = {
  name: "upwork_list_proposals",
  description: "List your submitted proposals",
  inputSchema: {
    type: "object",
    properties: {
      status: { type: "string", enum: ["active", "submitted", "interviewing", "offered", "hired", "ended", "declined"], description: "Filter by proposal status" },
      page: { type: "number", minimum: 1, default: 1, description: "Page number" },
      limit: { type: "number", minimum: 1, maximum: 100, default: 20, description: "Results per page" }
    }
  }
};

export async function listProposalsHandler(args: unknown, upworkClient: UpworkClient) {
  const validatedArgs = ListProposalsArgsSchema.parse(args);
  
  try {
    const params = new URLSearchParams();
    if (validatedArgs.status) params.append('status', validatedArgs.status);
    params.append('page', validatedArgs.page.toString());
    params.append('count', validatedArgs.limit.toString());

    const response = await upworkClient.getClient().get(`/profiles/v1/contractors/offers?${params.toString()}`);
    
    return {
      content: [
        {
          type: "text",
          text: JSON.stringify({
            success: true,
            proposals: response.data.offers || response.data.applications || [],
            total: response.data.total || 0,
            page: validatedArgs.page,
            limit: validatedArgs.limit
          }, null, 2)
        }
      ]
    };
  } catch (error) {
    throw upworkClient.handleError(error);
  }
}

export const listProposalsTool = {
  definition: listProposalsToolDefinition,
  handler: listProposalsHandler,
  schema: ListProposalsArgsSchema
};