"""Tests for marketing_intelligence.storage.campaign_config."""

import json
from pathlib import Path
from typing import Any
from unittest.mock import patch

from marketing_intelligence.core.models import CampaignPost
from marketing_intelligence.storage import campaign_config as cc


def _patch_file(tmp_path: Path) -> Any:
    return patch.object(
        cc, "_config_file", return_value=tmp_path / "campaign_config.json"
    )


# ─────────────────────────── list_posts ────────────────────────────────────


class TestListPosts:
    def test_returns_empty_when_no_file(self, tmp_path: Path) -> None:
        with _patch_file(tmp_path):
            assert cc.list_posts("camp_a") == []

    def test_returns_active_posts(self, tmp_path: Path) -> None:
        data = {
            "camp_a": [
                {"post_id": "v1", "url": "", "is_active": True},
                {"post_id": "v2", "url": "", "is_active": False},
            ]
        }
        (tmp_path / "campaign_config.json").write_text(json.dumps(data))
        with _patch_file(tmp_path):
            posts = cc.list_posts("camp_a")
        assert len(posts) == 1
        assert posts[0].post_id == "v1"

    def test_defaults_to_active_when_flag_missing(self, tmp_path: Path) -> None:
        data = {"camp_a": [{"post_id": "v1", "url": ""}]}
        (tmp_path / "campaign_config.json").write_text(json.dumps(data))
        with _patch_file(tmp_path):
            posts = cc.list_posts("camp_a")
        assert len(posts) == 1


# ─────────────────────────── add_posts ─────────────────────────────────────


class TestAddPosts:
    def test_adds_new_posts(self, tmp_path: Path) -> None:
        posts = [CampaignPost(post_id="v1", url="https://tiktok.com/v1")]
        with _patch_file(tmp_path):
            added = cc.add_posts("camp_a", posts)
        assert added == 1

    def test_does_not_duplicate(self, tmp_path: Path) -> None:
        data = {"camp_a": [{"post_id": "v1", "url": "", "is_active": True}]}
        (tmp_path / "campaign_config.json").write_text(json.dumps(data))
        posts = [CampaignPost(post_id="v1", url="")]
        with _patch_file(tmp_path):
            added = cc.add_posts("camp_a", posts)
        assert added == 0

    def test_reactivates_inactive_post(self, tmp_path: Path) -> None:
        data = {"camp_a": [{"post_id": "v1", "url": "", "is_active": False}]}
        (tmp_path / "campaign_config.json").write_text(json.dumps(data))
        posts = [CampaignPost(post_id="v1", url="")]
        with _patch_file(tmp_path):
            cc.add_posts("camp_a", posts)
            result = cc.list_posts("camp_a")
        assert result[0].is_active is True

    def test_persists_to_file(self, tmp_path: Path) -> None:
        posts = [CampaignPost(post_id="v1", url="")]
        with _patch_file(tmp_path):
            cc.add_posts("camp_a", posts)
        saved = json.loads((tmp_path / "campaign_config.json").read_text())
        assert len(saved["camp_a"]) == 1


# ─────────────────────────── deactivate_posts ──────────────────────────────


class TestDeactivatePosts:
    def test_deactivates_all_active(self, tmp_path: Path) -> None:
        data = {
            "camp_a": [
                {"post_id": "v1", "url": "", "is_active": True},
                {"post_id": "v2", "url": "", "is_active": True},
            ]
        }
        (tmp_path / "campaign_config.json").write_text(json.dumps(data))
        with _patch_file(tmp_path):
            count = cc.deactivate_posts("camp_a")
        assert count == 2

    def test_returns_zero_when_already_inactive(self, tmp_path: Path) -> None:
        data = {"camp_a": [{"post_id": "v1", "url": "", "is_active": False}]}
        (tmp_path / "campaign_config.json").write_text(json.dumps(data))
        with _patch_file(tmp_path):
            count = cc.deactivate_posts("camp_a")
        assert count == 0

    def test_returns_zero_for_unknown_campaign(self, tmp_path: Path) -> None:
        with _patch_file(tmp_path):
            count = cc.deactivate_posts("no_camp")
        assert count == 0


# ─────────────────────────── list_active_campaign_ids ──────────────────────


class TestListActiveCampaignIds:
    def test_returns_ids_with_active_posts(self, tmp_path: Path) -> None:
        data = {
            "camp_a": [{"post_id": "v1", "is_active": True}],
            "camp_b": [{"post_id": "v2", "is_active": False}],
        }
        (tmp_path / "campaign_config.json").write_text(json.dumps(data))
        with _patch_file(tmp_path):
            ids = cc.list_active_campaign_ids()
        assert ids == ["camp_a"]

    def test_returns_empty_when_no_file(self, tmp_path: Path) -> None:
        with _patch_file(tmp_path):
            assert cc.list_active_campaign_ids() == []