"""Tests for marketing_intelligence.storage.campaigns."""

from typing import Any
from unittest.mock import patch

from marketing_intelligence.storage import campaigns as camp


def _patch_file(data: list) -> Any:
    return patch.object(camp, "_fetch_local", return_value=data)


# ─────────────────────────── list_active_campaigns ─────────────────────────


class TestListActiveCampaigns:
    def _row(self, campaign_key: str = "camp_a", status: str = "active") -> dict:
        return {
            "campaign_key": campaign_key,
            "campaign_nm": "Campaign A",
            "status": status,
            "artist_key": "artist_a",
        }

    def test_returns_active_campaigns(self) -> None:
        with _patch_file([self._row()]):
            result = camp.list_active_campaigns()
        assert len(result) == 1
        assert result[0].campaign_key == "camp_a"

    def test_filters_out_inactive(self) -> None:
        rows = [self._row("camp_a", "active"), self._row("camp_b", "inactive")]
        with _patch_file(rows):
            result = camp.list_active_campaigns()
        assert len(result) == 1

    def test_returns_empty_on_empty_file(self) -> None:
        with _patch_file([]):
            result = camp.list_active_campaigns()
        assert result == []


# ─────────────────────────── get_campaign ──────────────────────────────────


class TestGetCampaign:
    def _row(self) -> dict:
        return {
            "campaign_key": "camp_a",
            "campaign_id": "camp-id-1",
            "campaign_nm": "Campaign A",
            "status": "active",
            "artist_key": "artist_a",
        }

    def test_finds_by_campaign_key(self) -> None:
        with _patch_file([self._row()]):
            result = camp.get_campaign("camp_a")
        assert result is not None
        assert result.campaign_key == "camp_a"

    def test_finds_by_campaign_id(self) -> None:
        with _patch_file([self._row()]):
            result = camp.get_campaign("camp-id-1")
        assert result is not None

    def test_returns_none_when_not_found(self) -> None:
        with _patch_file([self._row()]):
            result = camp.get_campaign("no_such_campaign")
        assert result is None