import { useMutation, useQuery, useQueryClient } from '@tanstack/react-query';
import * as proposalsApi from '@/services/proposals-api.ts';

/**
 * Get all proposals with optional filters
 * Returns safe default structure to prevent freezing on empty/null responses
 */
export function useProposals(params?: {
  organization_id?: string;
  status?: 'pending' | 'accepted' | 'rejected';
  type?: 'incoming' | 'outgoing';
}) {
  return useQuery({
    queryKey: ['proposals', params],
    queryFn: async () => {
      try {
        const data = await proposalsApi.getProposals(params);
        // Ensure we always return a valid structure
        return {
          proposals: Array.isArray(data?.proposals) ? data.proposals : [],
          ...data,
        };
      } catch {
        // Return safe default on error
        return { proposals: [] };
      }
    },
    // Return safe default while loading
    placeholderData: { proposals: [] },
  });
}

/**
 * Get proposal by ID
 * Returns undefined immediately to prevent blocking render
 */
export function useProposal(id: string | undefined) {
  return useQuery({
    queryKey: ['proposals', id],
    queryFn: () => proposalsApi.getProposalById(id!),
    enabled: !!id,
    placeholderData: undefined, // Render immediately, data loads async
  });
}

/**
 * Get proposals for an organization
 * Returns safe default structure to prevent freezing on empty/null responses
 */
export function useProposalsForOrganization(
  orgId: string | undefined,
  type?: 'incoming' | 'outgoing'
) {
  return useQuery({
    queryKey: ['proposals', 'organization', orgId, type],
    queryFn: async () => {
      try {
        const data = await proposalsApi.getProposalsForOrganization(orgId!, type);
        // Ensure we always return a valid structure
        return {
          incoming: Array.isArray(data?.incoming) ? data.incoming : [],
          outgoing: Array.isArray(data?.outgoing) ? data.outgoing : [],
          ...data,
        };
      } catch {
        // Return safe default on error
        return { incoming: [], outgoing: [] };
      }
    },
    enabled: !!orgId,
    // Return safe default while loading
    placeholderData: { incoming: [], outgoing: [] },
  });
}

/**
 * Create a new proposal
 */
export function useCreateProposal() {
  const queryClient = useQueryClient();

  return useMutation({
    mutationFn: proposalsApi.createProposal,
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: ['proposals'] });
    },
  });
}

/**
 * Update proposal status
 */
export function useUpdateProposalStatus() {
  const queryClient = useQueryClient();

  return useMutation({
    mutationFn: ({ id, status }: { id: string; status: 'pending' | 'accepted' | 'rejected' }) =>
      proposalsApi.updateProposalStatus(id, { status }),
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: ['proposals'] });
    },
  });
}