import { describe, expect, it } from "vitest";
import { runAddressDecomposeStage } from "../src/services/address_runtime/decomposeStage";

describe("address follow-up temporal regressions", () => {
  it("replaces VAT month-only follow-up with the previous follow-up year", () => {
    const result = runAddressDecomposeStage("а на март", {
      previous_intent: "vat_payable_confirmed_as_of_date",
      previous_filters: {
        period_from: "2019-05-01",
        period_to: "2019-05-31",
        as_of_date: "2019-05-31"
      },
      previous_anchor_type: "unknown",
      previous_anchor_value: null
    });

    expect(result).not.toBeNull();
    expect(result?.intent.intent).toBe("vat_payable_confirmed_as_of_date");
    expect(result?.filters.extracted_filters.period_from).toBe("2019-03-01");
    expect(result?.filters.extracted_filters.period_to).toBe("2019-03-31");
    expect(result?.filters.extracted_filters.as_of_date).toBe("2019-03-31");
    expect(result?.baseReasons).toContain("period_derived_from_followup_context_year");
  });

  it("replaces VAT month-only follow-up with a later month from the same inherited year", () => {
    const result = runAddressDecomposeStage("на сентябрь", {
      previous_intent: "vat_payable_confirmed_as_of_date",
      previous_filters: {
        period_from: "2019-05-01",
        period_to: "2019-05-31",
        as_of_date: "2019-05-31"
      },
      previous_anchor_type: "unknown",
      previous_anchor_value: null
    });

    expect(result).not.toBeNull();
    expect(result?.intent.intent).toBe("vat_payable_confirmed_as_of_date");
    expect(result?.filters.extracted_filters.period_from).toBe("2019-09-01");
    expect(result?.filters.extracted_filters.period_to).toBe("2019-09-30");
    expect(result?.filters.extracted_filters.as_of_date).toBe("2019-09-30");
    expect(result?.baseReasons).toContain("period_derived_from_followup_context_year");
  });

  it("inherits the previous VAT period for 'за этот период' follow-up", () => {
    const result = runAddressDecomposeStage("какой НДС мы должны примерно заплатить за этот период", {
      previous_intent: "vat_payable_confirmed_as_of_date",
      previous_filters: {
        period_from: "2017-05-01",
        period_to: "2017-05-31",
        as_of_date: "2017-05-31"
      },
      previous_anchor_type: "unknown",
      previous_anchor_value: null
    });

    expect(result).not.toBeNull();
    expect(result?.intent.intent).toBe("vat_liability_confirmed_for_tax_period");
    expect(result?.filters.extracted_filters.period_from).toBe("2017-05-01");
    expect(result?.filters.extracted_filters.period_to).toBe("2017-05-31");
    expect(result?.filters.extracted_filters.as_of_date).toBe("2017-05-31");
    expect(result?.baseReasons).toContain("period_from_from_followup_context");
  });

  it("keeps inherited period when a follow-up retargets from receivables into VAT for the same period", () => {
    const result = runAddressDecomposeStage("а какой НДС мы должны примерно заплатить за этот период", {
      previous_intent: "receivables_confirmed_as_of_date",
      target_intent: "vat_payable_confirmed_as_of_date",
      previous_filters: {
        period_from: "2017-05-01",
        period_to: "2017-05-31",
        as_of_date: "2017-05-31"
      },
      previous_anchor_type: "organization",
      previous_anchor_value: 'ООО "Альтернатива Плюс"'
    });

    expect(result).not.toBeNull();
    expect(result?.intent.intent).toBe("vat_liability_confirmed_for_tax_period");
    expect(result?.filters.extracted_filters.period_from).toBe("2017-05-01");
    expect(result?.filters.extracted_filters.period_to).toBe("2017-05-31");
    expect(result?.filters.extracted_filters.as_of_date).toBe("2017-05-31");
  });

  it("uses follow-up target intent for short debt mirror like 'а нам?'", () => {
    const result = runAddressDecomposeStage("а нам?", {
      previous_intent: "payables_confirmed_as_of_date",
      target_intent: "receivables_confirmed_as_of_date",
      previous_filters: {
        as_of_date: "2026-04-16"
      },
      previous_anchor_type: "organization",
      previous_anchor_value: 'ООО "Альтернатива Плюс"'
    });

    expect(result).not.toBeNull();
    expect(result?.intent.intent).toBe("receivables_confirmed_as_of_date");
    expect(result?.filters.extracted_filters.as_of_date).toBe("2026-04-16");
  });

  it("keeps same-date inventory pivot anchored to the previous VAT date", () => {
    const result = runAddressDecomposeStage("какие остатки по складу на эту же дату", {
      previous_intent: "vat_payable_confirmed_as_of_date",
      previous_filters: {
        period_from: "2019-09-01",
        period_to: "2019-09-30",
        as_of_date: "2019-09-30"
      },
      previous_anchor_type: "unknown",
      previous_anchor_value: null
    });

    expect(result).not.toBeNull();
    expect(result?.intent.intent).toBe("inventory_on_hand_as_of_date");
    expect(result?.filters.extracted_filters.as_of_date).toBe("2019-09-30");
    expect(result?.filters.extracted_filters.warehouse).toBeUndefined();
    expect(result?.baseReasons).toContain("as_of_date_from_followup_context");
  });

  it("keeps period window on inventory same-date follow-up phrased as 'по этой же дате'", () => {
    const result = runAddressDecomposeStage(
      "\u043f\u043e\u043a\u0430\u0436\u0438 \u043e\u0441\u0442\u0430\u0442\u043a\u0438 \u043d\u0430 \u0441\u043a\u043b\u0430\u0434\u0435 \u043f\u043e \u044d\u0442\u043e\u0439 \u0436\u0435 \u0434\u0430\u0442\u0435",
      {
        previous_intent: "receivables_confirmed_as_of_date",
        previous_filters: {
          organization: "\u0420\u0410\u0419\u041c",
          period_from: "2020-03-01",
          period_to: "2020-03-31",
          as_of_date: "2020-03-31"
        },
        previous_anchor_type: "organization",
        previous_anchor_value: "\u0420\u0410\u0419\u041c"
      }
    );

    expect(result).not.toBeNull();
    expect(result?.intent.intent).toBe("inventory_on_hand_as_of_date");
    expect(result?.filters.extracted_filters.organization).toBe("\u0420\u0410\u0419\u041c");
    expect(result?.filters.extracted_filters.as_of_date).toBe("2020-03-31");
    expect(result?.filters.extracted_filters.period_from).toBe("2020-03-01");
    expect(result?.filters.extracted_filters.period_to).toBe("2020-03-31");
    expect(result?.filters.extracted_filters.warehouse).toBeUndefined();
    expect(result?.baseReasons).toContain("period_from_from_followup_context");
    expect(result?.baseReasons).toContain("period_to_from_followup_context");
  });

  it("does not inherit stale inventory as-of date over an explicit fresh snapshot date", () => {
    const result = runAddressDecomposeStage(
      "Покажи складской срез Альтернативы Плюс на 2026-04-16: что есть в остатках, какие самые заметные позиции, и что это говорит о бизнесе.",
      {
        previous_intent: "inventory_on_hand_as_of_date",
        target_intent: "inventory_on_hand_as_of_date",
        previous_filters: {
          organization: "ООО Альтернатива Плюс",
          period_from: "2020-01-01",
          period_to: "2020-12-31",
          as_of_date: "2020-12-31"
        },
        previous_anchor_type: "organization",
        previous_anchor_value: "ООО Альтернатива Плюс"
      }
    );

    expect(result).not.toBeNull();
    expect(result?.intent.intent).toBe("inventory_on_hand_as_of_date");
    expect(result?.filters.extracted_filters.as_of_date).toBe("2026-04-16");
    expect(result?.filters.extracted_filters.period_from).toBe("2026-04-01");
    expect(result?.filters.extracted_filters.period_to).toBe("2026-04-30");
    expect(result?.baseReasons).not.toContain("as_of_date_from_open_items_followup_context");
  });

  it("retargets inventory purchase-date VAT bridge into confirmed VAT period with inherited purchase month", () => {
    const result = runAddressDecomposeStage("ндс можешь прикинуть на дату покупки рабочей станции?", {
      previous_intent: "inventory_purchase_provenance_for_item",
      target_intent: "vat_liability_confirmed_for_tax_period",
      previous_filters: {
        item: "Рабочая станция универсального специалиста",
        organization: 'ООО "Альтернатива Плюс"',
        period_from: "2015-02-01",
        period_to: "2015-02-28",
        as_of_date: "2016-03-31"
      },
      previous_anchor_type: "item",
      previous_anchor_value: "Рабочая станция универсального специалиста"
    });

    expect(result).not.toBeNull();
    expect(result?.intent.intent).toBe("vat_liability_confirmed_for_tax_period");
    expect(result?.filters.extracted_filters.period_from).toBe("2015-02-01");
    expect(result?.filters.extracted_filters.period_to).toBe("2015-02-28");
    expect(result?.baseReasons).toContain("period_from_followup_context");
  });
  it("clears counterparty noise from bare organization clarification selections that resume inventory", () => {
    const result = runAddressDecomposeStage("АЛЬТЕРНАТИВА", {
      previous_intent: "inventory_on_hand_as_of_date",
      target_intent: "inventory_on_hand_as_of_date",
      previous_filters: {
        organization: "ООО Альтернатива Плюс",
        as_of_date: "2026-04-19"
      },
      previous_anchor_type: "organization",
      previous_anchor_value: "ООО Альтернатива Плюс"
    });

    expect(result).not.toBeNull();
    expect(result?.intent.intent).toBe("inventory_on_hand_as_of_date");
    expect(result?.filters.extracted_filters.organization).toBe("ООО Альтернатива Плюс");
    expect(result?.filters.extracted_filters.as_of_date).toBe("2026-04-19");
    expect(result?.filters.extracted_filters.counterparty).toBeUndefined();
  });

  it("does not re-inherit organization alias as counterparty into historical inventory follow-up", () => {
    const result = runAddressDecomposeStage("давай на июль 2017", {
      previous_intent: "inventory_on_hand_as_of_date",
      target_intent: "inventory_on_hand_as_of_date",
      previous_filters: {
        organization: "ООО Альтернатива Плюс",
        counterparty: "АЛЬТЕРНАТИВА",
        as_of_date: "2026-04-19"
      },
      previous_anchor_type: "counterparty",
      previous_anchor_value: "АЛЬТЕРНАТИВА",
      root_intent: "inventory_on_hand_as_of_date",
      root_filters: {
        organization: "ООО Альтернатива Плюс",
        as_of_date: "2026-04-19"
      },
      root_anchor_type: "organization",
      root_anchor_value: "ООО Альтернатива Плюс",
      current_frame_kind: "inventory_root"
    });

    expect(result).not.toBeNull();
    expect(result?.intent.intent).toBe("inventory_on_hand_as_of_date");
    expect(result?.filters.extracted_filters.organization).toBe("ООО Альтернатива Плюс");
    expect(result?.filters.extracted_filters.period_from).toBe("2017-07-01");
    expect(result?.filters.extracted_filters.period_to).toBe("2017-07-31");
    expect(result?.filters.extracted_filters.counterparty).toBeUndefined();
    expect(result?.baseReasons).toContain("counterparty_cleared_as_organization_scope_alias");
  });

  it("does not inherit stale historical period into a fresh counterparty document root", () => {
    const result = runAddressDecomposeStage("по чепурнову покажи все доки", {
      previous_intent: "inventory_on_hand_as_of_date",
      target_intent: "list_documents_by_counterparty",
      previous_filters: {
        organization: "ООО Альтернатива Плюс",
        period_from: "2016-03-01",
        period_to: "2016-03-31",
        as_of_date: "2016-03-31"
      },
      previous_anchor_type: "organization",
      previous_anchor_value: "ООО Альтернатива Плюс"
    }, {
      scope_target_kind: "counterparty",
      scope_target_text: "Чепурнов",
      date_scope_kind: "missing",
      self_scope_detected: false,
      selected_object_scope_detected: false
    });

    expect(result).not.toBeNull();
    expect(result?.intent.intent).toBe("list_documents_by_counterparty");
    expect(result?.filters.extracted_filters.counterparty).toBeTruthy();
    expect(result?.filters.extracted_filters.period_from).toBeUndefined();
    expect(result?.filters.extracted_filters.period_to).toBeUndefined();
  });

  it("replaces document and movement service-word anchors from counterparty follow-up context", () => {
    const followupContext = {
      previous_intent: "customer_revenue_and_payments" as const,
      target_intent: "list_documents_by_counterparty" as const,
      previous_filters: {
        organization: "ООО Альтернатива Плюс",
        counterparty: "Группа СВК",
        period_from: "2020-01-01",
        period_to: "2020-12-31"
      },
      previous_anchor_type: "counterparty" as const,
      previous_anchor_value: "Группа СВК",
      resolved_counterparty_from_display: true
    };

    const documents = runAddressDecomposeStage("документы по контрагенту документам", followupContext);
    const movements = runAddressDecomposeStage("Проверить движение по счетам или документам", followupContext);

    expect(documents?.intent.intent).toBe("list_documents_by_counterparty");
    expect(documents?.filters.extracted_filters.counterparty).toBe("Группа СВК");
    expect(documents?.baseReasons).toContain("counterparty_from_followup_context");
    expect(movements?.intent.intent).toBe("list_documents_by_counterparty");
    expect(movements?.filters.extracted_filters.counterparty).toBe("Группа СВК");
    expect(movements?.baseReasons).toContain("counterparty_from_followup_context");
  });
});