import { RejectedActionPayload, ServerErrorResponse } from '@/interface/Shared';
import {
  CreateEmployeeDeductionPayload,
  DeductionMatrixResponse,
  DeleteEmployeeDeductionPayload,
  EmployeeDeduction,
  UpdateEmployeeDeductionPayload,
} from '@/interface/EmployeeDeduction';
import Helpers from '@/utilities/Helpers';
import { createAsyncThunk, createSlice, Draft, PayloadAction } from '@reduxjs/toolkit';
import { message } from 'antd';
import { EmployeeDeductionsActions } from './actionTypes';
import { apiDelete, apiGet, apiPost, apiPut } from '@/services/api/api';
import axios, { AxiosResponse } from 'axios';

interface EmployeeDeductionState {
  employeeDeductions: EmployeeDeduction[];
  matrix: DeductionMatrixResponse | null;
  loading: boolean;
  matrixLoading: boolean;
  error: string | null;
}

const initialState: EmployeeDeductionState = {
  employeeDeductions: [],
  matrix: null,
  loading: false,
  matrixLoading: false,
  error: null,
};

export const fetchEmployeeDeductions = createAsyncThunk(
  EmployeeDeductionsActions.FETCH_EMPLOYEE_DEDUCTIONS_REQUEST,
  async (params?: {
    employee_id?: string;
    deduction_type_id?: string;
    branch_id?: string;
    org_unit_id?: string;
    search?: string;
  }) => {
    const queryParams = new URLSearchParams();
    if (params?.employee_id) queryParams.append('employee_id', params.employee_id);
    if (params?.deduction_type_id)
      queryParams.append('deduction_type_id', params.deduction_type_id);
    if (params?.branch_id) queryParams.append('branch_id', params.branch_id);
    if (params?.org_unit_id) queryParams.append('org_unit_id', params.org_unit_id);
    if (params?.search) queryParams.append('search', params.search);
    const query = queryParams.toString() ? `?${queryParams.toString()}` : '';
    const response = (await apiGet(`/payroll/employee-deductions${query}`)) as AxiosResponse<
      EmployeeDeduction[]
    >;
    return response.data;
  },
);

export const fetchDeductionMatrix = createAsyncThunk(
  EmployeeDeductionsActions.FETCH_DEDUCTION_MATRIX_REQUEST,
  async (params?: { branch_id?: string; org_unit_id?: string; search?: string; salary_grade_id?: string; salary_notch_id?: string }) => {
    const queryParams = new URLSearchParams();
    if (params?.branch_id) queryParams.append('branch_id', params.branch_id);
    if (params?.org_unit_id) queryParams.append('org_unit_id', params.org_unit_id);
    if (params?.search) queryParams.append('search', params.search);
    if (params?.salary_grade_id) queryParams.append('salary_grade_id', params.salary_grade_id);
    if (params?.salary_notch_id) queryParams.append('salary_notch_id', params.salary_notch_id);
    const query = queryParams.toString() ? `?${queryParams.toString()}` : '';
    const response = (await apiGet(`/payroll/deductions/matrix${query}`)) as AxiosResponse<
      DeductionMatrixResponse
    >;
    return response.data;
  },
);

export const createEmployeeDeduction = createAsyncThunk(
  EmployeeDeductionsActions.CREATE_EMPLOYEE_DEDUCTION_REQUEST,
  async (payload: CreateEmployeeDeductionPayload, { rejectWithValue }) => {
    try {
      const response = (await apiPost(
        '/payroll/employee-deductions',
        payload,
      )) as AxiosResponse<{ data: EmployeeDeduction }>;
      return response.data.data;
    } catch (error) {
      if (axios.isAxiosError(error) && error.response) {
        return rejectWithValue(error.response.data as ServerErrorResponse);
      }
      throw error;
    }
  },
);

export const updateEmployeeDeduction = createAsyncThunk(
  EmployeeDeductionsActions.UPDATE_EMPLOYEE_DEDUCTION_REQUEST,
  async (payload: UpdateEmployeeDeductionPayload, { rejectWithValue }) => {
    try {
      const { id, ...data } = payload;
      const response = (await apiPut(
        `/payroll/employee-deductions/${id}`,
        data,
      )) as AxiosResponse<{ data: EmployeeDeduction }>;
      return response.data.data;
    } catch (error) {
      if (axios.isAxiosError(error) && error.response) {
        return rejectWithValue(error.response.data as ServerErrorResponse);
      }
      throw error;
    }
  },
);

export const deleteEmployeeDeduction = createAsyncThunk(
  EmployeeDeductionsActions.DELETE_EMPLOYEE_DEDUCTION_REQUEST,
  async (id: string) => {
    const response = (await apiDelete(
      `/payroll/employee-deductions/${id}`,
    )) as AxiosResponse<DeleteEmployeeDeductionPayload>;
    const responseData = response.data;
    responseData.id = id;
    return responseData;
  },
);

export const EmployeeDeductionsSlice = createSlice({
  name: 'employeeDeductions',
  initialState,
  reducers: {},
  extraReducers(builder) {
    builder
      .addCase(fetchEmployeeDeductions.pending, (state: Draft<EmployeeDeductionState>) => {
        state.loading = true;
        state.error = null;
      })
      .addCase(
        fetchEmployeeDeductions.fulfilled,
        (
          state: Draft<EmployeeDeductionState>,
          action: PayloadAction<EmployeeDeduction[]>,
        ) => {
          state.employeeDeductions = action.payload;
          state.error = null;
          state.loading = false;
        },
      )
      .addCase(fetchEmployeeDeductions.rejected, (state: Draft<EmployeeDeductionState>, action: RejectedActionPayload) => {
        state.loading = false;
        state.error = 'Failed to load employee deductions. Please try again or contact support';
        message.error(Helpers.handleServerError(action.payload), 8);
      });

    builder
      .addCase(fetchDeductionMatrix.pending, (state: Draft<EmployeeDeductionState>) => {
        state.matrixLoading = true;
        state.error = null;
      })
      .addCase(
        fetchDeductionMatrix.fulfilled,
        (
          state: Draft<EmployeeDeductionState>,
          action: PayloadAction<DeductionMatrixResponse>,
        ) => {
          state.matrix = action.payload;
          state.error = null;
          state.matrixLoading = false;
        },
      )
      .addCase(fetchDeductionMatrix.rejected, (state: Draft<EmployeeDeductionState>, action: RejectedActionPayload) => {
        state.matrixLoading = false;
        state.error = 'Failed to load deduction matrix. Please try again or contact support';
        message.error(Helpers.handleServerError(action.payload), 8);
      });

    builder
      .addCase(createEmployeeDeduction.pending, (state: Draft<EmployeeDeductionState>) => {
        state.loading = true;
        state.error = null;
      })
      .addCase(
        createEmployeeDeduction.fulfilled,
        (
          state: Draft<EmployeeDeductionState>,
          action: PayloadAction<EmployeeDeduction>,
        ) => {
          state.employeeDeductions.unshift(action.payload);
          state.error = null;
          state.loading = false;
          message.success('Employee deduction created successfully');
        },
      )
      .addCase(
        createEmployeeDeduction.rejected,
        (state: Draft<EmployeeDeductionState>, action: RejectedActionPayload) => {
          state.loading = false;
          state.error = Helpers.handleServerError(action.payload);
          message.error(Helpers.handleServerError(action.payload), 10);
        },
      );

    builder
      .addCase(updateEmployeeDeduction.pending, (state: Draft<EmployeeDeductionState>) => {
        state.loading = true;
        state.error = null;
      })
      .addCase(
        updateEmployeeDeduction.fulfilled,
        (
          state: Draft<EmployeeDeductionState>,
          action: PayloadAction<EmployeeDeduction>,
        ) => {
          const index = state.employeeDeductions.findIndex((d) => d.id === action.payload.id);
          if (index !== -1) {
            state.employeeDeductions[index] = action.payload;
          }
          state.loading = false;
          state.error = null;
          message.success('Employee deduction updated successfully');
        },
      )
      .addCase(
        updateEmployeeDeduction.rejected,
        (state: Draft<EmployeeDeductionState>, action: RejectedActionPayload) => {
          state.loading = false;
          state.error = Helpers.handleServerError(action.payload);
          message.error(Helpers.handleServerError(action.payload), 10);
        },
      );

    builder
      .addCase(deleteEmployeeDeduction.pending, (state: Draft<EmployeeDeductionState>) => {
        state.loading = true;
      })
      .addCase(
        deleteEmployeeDeduction.fulfilled,
        (
          state: Draft<EmployeeDeductionState>,
          action: PayloadAction<DeleteEmployeeDeductionPayload>,
        ) => {
          state.employeeDeductions = state.employeeDeductions.filter(
            (d) => d.id !== action.payload.id,
          );
          state.loading = false;
          message.success(action.payload.message);
        },
      )
      .addCase(deleteEmployeeDeduction.rejected, (state: Draft<EmployeeDeductionState>, action: RejectedActionPayload) => {
        state.loading = false;
        state.error = 'Failed to delete employee deduction. Please try again or contact support';
        message.error(Helpers.handleServerError(action.payload), 8);
      });
  },
});

export default EmployeeDeductionsSlice;
export type { EmployeeDeductionState };