from __future__ import annotations

from typing import List

from .base import Adapter
from openbench_privacy_preserving_benchmarkin.core import KPIRecord
from openbench_privacy_preserving_benchmarkin.contracts import DataContract


class POSAdapter(Adapter):
    """A toy POS (Point-of-Sale) adapter that yields KPIRecords."""

    def __init__(self, name: str, contract: DataContract, seed: int = 42):
        super().__init__(name, contract)
        self._seed = seed

    def collect(self) -> List[KPIRecord]:
        # For MVP: generate two deterministic KPI records as samples
        # In a real implementation this would pull from a POS feed.
        k1 = KPIRecord(
            revenue=1000.0,
            cogs=600.0,
            inventory_turns=2.5,
            lead_time=2.0,
            cac=50.0,
            ltv=1200.0,
            region="default",
            industry="Retail",
            anon_id=f"{self.name}-sample1",
            timestamp="2020-01-01T00:00:00Z",
        )
        k2 = KPIRecord(
            revenue=1500.0,
            cogs=900.0,
            inventory_turns=3.0,
            lead_time=3.0,
            cac=60.0,
            ltv=1700.0,
            region="default",
            industry="Retail",
            anon_id=f"{self.name}-sample2",
            timestamp="2020-01-02T00:00:00Z",
        )
        return [k1, k2]