import {
  BasicConfig,
  Utils as QbUtils,
  type Config,
  type ImmutableTree,
  type JsonGroup,
  type JsonItem,
} from "@react-awesome-query-builder/ui";
import type { AlertQueryField, AlertQueryOperator } from "./types";

const NUMERIC_OPERATORS_DEFAULT: AlertQueryOperator[] = [
  "equal",
  "less",
  "less_or_equal",
  "greater",
  "greater_or_equal",
];

export const ALERT_QUERY_FIELDS: AlertQueryField[] = [
  {
    key: "userMetric.max_loan_amount",
    label: "Borrowing Capacity",
    type: "number",
    unit: "dollar",
    operators: NUMERIC_OPERATORS_DEFAULT,
    min: 0,
  },
  {
    key: "userMetric.debt_outstanding",
    label: "Outstanding Debt",
    type: "number",
    unit: "dollar",
    operators: NUMERIC_OPERATORS_DEFAULT,
    min: 0,
  },
  {
    key: "userMetric.lvr",
    label: "Current LVR",
    type: "number",
    unit: "percent",
    operators: NUMERIC_OPERATORS_DEFAULT,
    min: 0,
    max: 100,
  },
  {
    key: "userMetric.has_met_buying_goal",
    label: "Has Met Buying Goal",
    type: "boolean",
  },
  {
    key: "userMetric.excess_monthly_surplus",
    label: "Excess Monthly Surplus",
    type: "number",
    unit: "dollar",
    operators: NUMERIC_OPERATORS_DEFAULT,
    min: 0,
  },
  {
    key: "userMetric.equity",
    label: "Equity Amount",
    type: "number",
    unit: "dollar",
    operators: NUMERIC_OPERATORS_DEFAULT,
    min: 0,
  },
  {
    key: "userMetric.max_debt_interest_rate",
    label: "Max Debt Interest Rate",
    type: "number",
    unit: "percent",
    operators: NUMERIC_OPERATORS_DEFAULT,
    min: 0,
    max: 100,
  },
  {
    key: "userMetric.min_debt_interest_rate",
    label: "Min Debt Interest Rate",
    type: "number",
    unit: "percent",
    operators: NUMERIC_OPERATORS_DEFAULT,
    min: 0,
    max: 100,
  },
];

export const ALL_NUMERIC_OPERATORS: AlertQueryOperator[] =
  NUMERIC_OPERATORS_DEFAULT;

export const BOOLEAN_OPERATORS: AlertQueryOperator[] = ["equal"];

export const OPERATOR_LABELS: Record<AlertQueryOperator, string> = {
  equal: "=",
  less: "<",
  less_or_equal: "≤",
  greater: ">",
  greater_or_equal: "≥",
};

export const SEVERITY_LABELS = {
  HEALTHY: "Healthy",
  WATCH: "Watch",
  NEED_ACTION: "Need Action",
} as const;

// react-awesome-query-builder config — drives ImmutableTree state.
export const QB_CONFIG: Config = {
  ...BasicConfig,
  settings: {
    ...BasicConfig.settings,
    maxNesting: 3,
    maxNumberOfRules: 5,
  },
  fields: {
    "userMetric.max_loan_amount": {
      label: "Borrowing Capacity",
      type: "number",
      operators: NUMERIC_OPERATORS_DEFAULT,
      valueSources: ["value"],
      fieldSettings: { min: 0 },
    },
    "userMetric.debt_outstanding": {
      label: "Outstanding Debt",
      type: "number",
      operators: NUMERIC_OPERATORS_DEFAULT,
      valueSources: ["value"],
      fieldSettings: { min: 0 },
    },
    "userMetric.lvr": {
      label: "Current LVR",
      type: "number",
      operators: NUMERIC_OPERATORS_DEFAULT,
      valueSources: ["value"],
      fieldSettings: { min: 0, max: 100 },
    },
    "userMetric.has_met_buying_goal": {
      label: "Has Met Buying Goal",
      type: "boolean",
      operators: ["equal"],
      valueSources: ["value"],
    },
    "userMetric.excess_monthly_surplus": {
      label: "Excess Monthly Surplus",
      type: "number",
      operators: NUMERIC_OPERATORS_DEFAULT,
      valueSources: ["value"],
      fieldSettings: { min: 0 },
    },
    "userMetric.equity": {
      label: "Equity Amount",
      type: "number",
      operators: NUMERIC_OPERATORS_DEFAULT,
      valueSources: ["value"],
      fieldSettings: { min: 0 },
    },
    "userMetric.max_debt_interest_rate": {
      label: "Max Debt Interest Rate",
      type: "number",
      operators: NUMERIC_OPERATORS_DEFAULT,
      valueSources: ["value"],
      fieldSettings: { min: 0, max: 100 },
    },
    "userMetric.min_debt_interest_rate": {
      label: "Min Debt Interest Rate",
      type: "number",
      operators: NUMERIC_OPERATORS_DEFAULT,
      valueSources: ["value"],
      fieldSettings: { min: 0, max: 100 },
    },
  },
};

// Default query — children1 in array form (matches JsonGroup type).
export const EMPTY_QUERY_VALUE: JsonGroup = {
  id: "root",
  type: "group",
  properties: { conjunction: "AND", not: false },
  children1: [
    {
      id: "rule-init",
      type: "rule",
      properties: {
        field: "userMetric.max_loan_amount",
        operator: "greater_or_equal",
        value: [null],
        valueSrc: ["value"],
      },
    } as JsonItem,
  ],
};

/** Convert a JsonGroup to an ImmutableTree usable by the query builder. */
export function createAlertTree(query?: JsonGroup | null): ImmutableTree {
  const q = query ?? EMPTY_QUERY_VALUE;
  // eslint-disable-next-line @typescript-eslint/no-explicit-any
  const loaded = QbUtils.loadTree(q as any);
  return QbUtils.sanitizeTree(loaded, QB_CONFIG).fixedTree;
}