#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
ContextManager and SnapshotManager tests
"""

import json
import logging

import pytest

from data_modules.config import DataModulesConfig
from data_modules.index_manager import (
    IndexManager,
    EntityMeta,
    ChapterReadingPowerMeta,
    ReviewMetrics,
)
from data_modules.context_manager import ContextManager
from data_modules.snapshot_manager import SnapshotManager, SnapshotVersionMismatch
from data_modules.query_router import QueryRouter


@pytest.fixture
def temp_project(tmp_path):
    cfg = DataModulesConfig.from_project_root(tmp_path)
    cfg.ensure_dirs()
    return cfg


def test_snapshot_manager_roundtrip(temp_project):
    manager = SnapshotManager(temp_project)
    payload = {"hello": "world"}
    manager.save_snapshot(1, payload)
    loaded = manager.load_snapshot(1)
    assert loaded["payload"] == payload


def test_snapshot_version_mismatch(temp_project):
    manager = SnapshotManager(temp_project, version="1.0")
    manager.save_snapshot(1, {"a": 1})
    other = SnapshotManager(temp_project, version="2.0")
    with pytest.raises(SnapshotVersionMismatch):
        other.load_snapshot(1)


def test_context_manager_build_and_filter(temp_project):
    state = {
        "protagonist_state": {"name": "萧炎", "location": {"current": "天云宗"}},
        "chapter_meta": {"0001": {"hook": "测试"}},
    }
    temp_project.state_file.write_text(json.dumps(state, ensure_ascii=False), encoding="utf-8")

    # preferences and memory
    (temp_project.webnovel_dir / "preferences.json").write_text(json.dumps({"tone": "热血"}, ensure_ascii=False), encoding="utf-8")
    (temp_project.webnovel_dir / "project_memory.json").write_text(json.dumps({"patterns": []}, ensure_ascii=False), encoding="utf-8")

    idx = IndexManager(temp_project)
    idx.upsert_entity(
        EntityMeta(
            id="xiaoyan",
            type="角色",
            canonical_name="萧炎",
            current={},
            first_appearance=1,
            last_appearance=1,
        )
    )
    idx.upsert_entity(
        EntityMeta(
            id="bad",
            type="角色",
            canonical_name="坏人",
            current={},
            first_appearance=1,
            last_appearance=1,
        )
    )
    idx.record_appearance("xiaoyan", 1, ["萧炎"], 1.0)
    idx.record_appearance("bad", 1, ["坏人"], 1.0)
    invalid_id = idx.mark_invalid_fact("entity", "bad", "错误")
    idx.resolve_invalid_fact(invalid_id, "confirm")

    manager = ContextManager(temp_project)
    payload = manager.build_context(1, use_snapshot=False, save_snapshot=False)
    characters = payload["sections"]["scene"]["content"]["appearing_characters"]
    assert any(c.get("entity_id") == "xiaoyan" for c in characters)
    assert not any(c.get("entity_id") == "bad" for c in characters)
    assert payload["sections"]["preferences"]["content"].get("tone") == "热血"


def test_query_router():
    router = QueryRouter()
    assert router.route("角色是谁") == "entity"
    assert router.route("发生了什么剧情") == "plot"
    assert "A" in router.split("A, B；C")


def test_context_snapshot_respects_template(temp_project):
    state = {
        "protagonist_state": {"name": "萧炎"},
        "chapter_meta": {},
        "disambiguation_warnings": [],
        "disambiguation_pending": [],
    }
    temp_project.state_file.write_text(json.dumps(state, ensure_ascii=False), encoding="utf-8")

    manager = ContextManager(temp_project)

    plot_payload = manager.build_context(1, template="plot", use_snapshot=True, save_snapshot=True)
    battle_payload = manager.build_context(1, template="battle", use_snapshot=True, save_snapshot=True)

    assert plot_payload.get("template") == "plot"
    assert battle_payload.get("template") == "battle"


def test_context_manager_applies_ranker_and_contract_meta(temp_project):
    state = {
        "protagonist_state": {"name": "萧炎"},
        "chapter_meta": {
            "0002": {"hook": "平稳"},
            "0003": {"hook": "留下悬念"},
        },
        "disambiguation_warnings": [
            {"chapter": 1, "message": "普通告警"},
            {"chapter": 3, "message": "critical 冲突告警", "severity": "high"},
        ],
        "disambiguation_pending": [],
    }
    temp_project.state_file.write_text(json.dumps(state, ensure_ascii=False), encoding="utf-8")

    manager = ContextManager(temp_project)
    payload = manager.build_context(4, use_snapshot=False, save_snapshot=False)

    assert payload["meta"].get("context_contract_version") == "v2"
    recent_meta = payload["sections"]["core"]["content"]["recent_meta"]
    if recent_meta:
        assert recent_meta[0]["chapter"] == 3

    warnings = payload["sections"]["alerts"]["content"]["disambiguation_warnings"]
    if warnings and isinstance(warnings[0], dict):
        assert "critical" in str(warnings[0].get("message", "")) or warnings[0].get("severity") == "high"


def test_context_manager_includes_reader_signal_and_genre_profile(temp_project):
    state = {
        "project": {"genre": "xuanhuan"},
        "protagonist_state": {"name": "萧炎"},
        "chapter_meta": {},
        "disambiguation_warnings": [],
        "disambiguation_pending": [],
    }
    temp_project.state_file.write_text(json.dumps(state, ensure_ascii=False), encoding="utf-8")

    idx = IndexManager(temp_project)
    idx.save_chapter_reading_power(
        ChapterReadingPowerMeta(
            chapter=3,
            hook_type="悬念钩",
            hook_strength="strong",
            coolpoint_patterns=["身份掉马"],
        )
    )
    idx.save_review_metrics(
        ReviewMetrics(
            start_chapter=1,
            end_chapter=3,
            overall_score=72,
            dimension_scores={"plot": 72},
            severity_counts={"high": 1},
            critical_issues=["节奏拖沓"],
        )
    )

    manager = ContextManager(temp_project)
    payload = manager.build_context(4, use_snapshot=False, save_snapshot=False)

    reader_signal = payload["sections"]["reader_signal"]["content"]
    assert "recent_reading_power" in reader_signal
    assert "pattern_usage" in reader_signal
    assert "hook_type_usage" in reader_signal
    assert "review_trend" in reader_signal
    assert isinstance(reader_signal.get("low_score_ranges"), list)

    genre_profile = payload["sections"]["genre_profile"]["content"]
    assert genre_profile.get("genre") == "xuanhuan"
    assert "profile_excerpt" in genre_profile
    assert "taxonomy_excerpt" in genre_profile


def test_context_manager_genre_section_and_refs_extraction(temp_project):
    refs_dir = temp_project.project_root / ".claude" / "references"
    refs_dir.mkdir(parents=True, exist_ok=True)

    (refs_dir / "genre-profiles.md").write_text(
        """
## shuangwen
- 节奏快
- 打脸密集

## xuanhuan
- 升级线清晰
- 资源争夺
""".strip(),
        encoding="utf-8",
    )
    (refs_dir / "reading-power-taxonomy.md").write_text(
        """
## xuanhuan
- 钩子强度优先 strong
- 爽点使用战力跨级
""".strip(),
        encoding="utf-8",
    )

    manager = ContextManager(temp_project)

    profile = manager._load_genre_profile({"project": {"genre": "xuanhuan"}})
    assert profile["genre"] == "xuanhuan"
    assert "升级线清晰" in profile["profile_excerpt"]
    assert "钩子强度" in profile["taxonomy_excerpt"]
    assert isinstance(profile["reference_hints"], list)
    assert profile["reference_hints"]

    fallback_excerpt = manager._extract_genre_section("## a\n1\n## b\n2", "unknown")
    assert fallback_excerpt.startswith("## a")


def test_context_manager_reader_signal_with_debt_and_disable_switch(temp_project):
    manager = ContextManager(temp_project)
    manager.config.context_reader_signal_include_debt = True

    signal = manager._load_reader_signal(chapter=5)
    assert "debt_summary" in signal

    manager.config.context_reader_signal_enabled = False
    assert manager._load_reader_signal(chapter=5) == {}

    manager.config.context_genre_profile_enabled = False
    assert manager._load_genre_profile({"project": {"genre": "xuanhuan"}}) == {}


def test_context_manager_includes_writing_guidance(temp_project):
    state = {
        "project": {"genre": "xuanhuan"},
        "protagonist_state": {"name": "萧炎"},
        "chapter_meta": {},
        "disambiguation_warnings": [],
        "disambiguation_pending": [],
    }
    temp_project.state_file.write_text(json.dumps(state, ensure_ascii=False), encoding="utf-8")

    idx = IndexManager(temp_project)
    idx.save_chapter_reading_power(
        ChapterReadingPowerMeta(
            chapter=3,
            hook_type="悬念钩",
            hook_strength="strong",
            coolpoint_patterns=["身份掉马"],
        )
    )
    idx.save_review_metrics(
        ReviewMetrics(
            start_chapter=1,
            end_chapter=3,
            overall_score=70,
            dimension_scores={"plot": 70},
            severity_counts={"high": 1},
            critical_issues=["节奏拖沓"],
        )
    )

    manager = ContextManager(temp_project)
    payload = manager.build_context(4, use_snapshot=False, save_snapshot=False)

    guidance = payload["sections"]["writing_guidance"]["content"]
    assert guidance.get("chapter") == 4
    items = guidance.get("guidance_items") or []
    assert isinstance(items, list)
    assert items
    assert guidance.get("signals_used", {}).get("genre") == "xuanhuan"
    checklist = guidance.get("checklist") or []
    assert isinstance(checklist, list)
    assert checklist
    checklist_score = guidance.get("checklist_score") or {}
    assert isinstance(checklist_score, dict)
    assert "score" in checklist_score
    assert "completion_rate" in checklist_score
    first_item = checklist[0]
    assert isinstance(first_item, dict)
    assert {"id", "label", "weight", "required", "source", "verify_hint"}.issubset(first_item.keys())

    persisted = idx.get_writing_checklist_score(4)
    assert isinstance(persisted, dict)
    assert persisted.get("chapter") == 4
    assert persisted.get("score") is not None


def test_context_manager_dynamic_weights_and_composite_genre(temp_project):
    refs_dir = temp_project.project_root / ".claude" / "references"
    refs_dir.mkdir(parents=True, exist_ok=True)
    (refs_dir / "genre-profiles.md").write_text(
        """
## xuanhuan
- 升级线清晰

## realistic
- 社会议题映射
""".strip(),
        encoding="utf-8",
    )
    (refs_dir / "reading-power-taxonomy.md").write_text(
        """
## xuanhuan
- 钩子强度优先

## realistic
- 人物动机一致
""".strip(),
        encoding="utf-8",
    )

    state = {
        "project": {"genre": "xuanhuan+realistic"},
        "protagonist_state": {"name": "萧炎"},
        "chapter_meta": {},
        "disambiguation_warnings": [],
        "disambiguation_pending": [],
    }
    temp_project.state_file.write_text(json.dumps(state, ensure_ascii=False), encoding="utf-8")

    manager = ContextManager(temp_project)
    payload_early = manager.build_context(10, template="plot", use_snapshot=False, save_snapshot=False)
    payload_late = manager.build_context(150, template="plot", use_snapshot=False, save_snapshot=False)

    assert payload_early.get("weights", {}).get("core") >= payload_late.get("weights", {}).get("core")
    assert payload_late.get("weights", {}).get("global") >= payload_early.get("weights", {}).get("global")
    assert payload_early.get("meta", {}).get("context_weight_stage") == "early"
    assert payload_late.get("meta", {}).get("context_weight_stage") == "late"

    profile = payload_early["sections"]["genre_profile"]["content"]
    assert profile.get("composite") is True
    assert profile.get("genre") == "xuanhuan"
    assert isinstance(profile.get("genres"), list)
    assert "realistic" in (profile.get("genres") or [])
    assert isinstance(profile.get("composite_hints"), list)
    assert profile.get("composite_hints")


def test_context_manager_genre_alias_guidance_and_heading_extraction(temp_project):
    refs_dir = temp_project.project_root / ".claude" / "references"
    refs_dir.mkdir(parents=True, exist_ok=True)
    (refs_dir / "genre-profiles.md").write_text(
        """
### 电竞
- 联赛升级

### 直播文
- 反馈闭环

### 克苏鲁
- 真相代价
""".strip(),
        encoding="utf-8",
    )
    (refs_dir / "reading-power-taxonomy.md").write_text(
        """
### 电竞
- 战术决策点
""".strip(),
        encoding="utf-8",
    )

    state = {
        "project": {"genre": "电竞"},
        "protagonist_state": {"name": "林燃"},
        "chapter_meta": {},
        "disambiguation_warnings": [],
        "disambiguation_pending": [],
    }
    temp_project.state_file.write_text(json.dumps(state, ensure_ascii=False), encoding="utf-8")

    manager = ContextManager(temp_project)
    payload = manager.build_context(12, template="plot", use_snapshot=False, save_snapshot=False)
    guidance = payload["sections"]["writing_guidance"]["content"]
    items = guidance.get("guidance_items") or []

    assert any("战术决策点" in str(text) for text in items)
    assert any("网文节奏基线" in str(text) for text in items)
    assert any("兑现密度基线" in str(text) for text in items)


def test_context_manager_genre_aliases_normalized_for_profile_lookup(temp_project):
    refs_dir = temp_project.project_root / ".claude" / "references"
    refs_dir.mkdir(parents=True, exist_ok=True)
    (refs_dir / "genre-profiles.md").write_text(
        """
## 电竞
- 联赛升级

## 直播文
- 实时反馈

## 克苏鲁
- 真相代价
""".strip(),
        encoding="utf-8",
    )
    (refs_dir / "reading-power-taxonomy.md").write_text(
        """
## 电竞
- 决策后果

## 直播文
- 数据闭环

## 克苏鲁
- 规则优先
""".strip(),
        encoding="utf-8",
    )

    manager = ContextManager(temp_project)

    assert manager._parse_genre_tokens("电竞文") == ["电竞"]
    assert manager._parse_genre_tokens("直播") == ["直播文"]
    assert manager._parse_genre_tokens("克系") == ["克苏鲁"]
    assert manager._parse_genre_tokens("修仙/玄幻") == ["修仙"]
    assert manager._parse_genre_tokens("都市修真") == ["都市异能"]
    assert manager._parse_genre_tokens("古言脑洞") == ["古言"]

    state = {
        "project": {"genre": "电竞文+直播"},
        "protagonist_state": {"name": "叶修"},
        "chapter_meta": {},
        "disambiguation_warnings": [],
        "disambiguation_pending": [],
    }
    temp_project.state_file.write_text(json.dumps(state, ensure_ascii=False), encoding="utf-8")

    payload = manager.build_context(20, template="plot", use_snapshot=False, save_snapshot=False)
    profile = payload["sections"]["genre_profile"]["content"]

    assert profile.get("genre") == "电竞"
    assert "直播文" in (profile.get("genres") or [])


def test_context_manager_compact_text_truncation(temp_project):
    manager = ContextManager(temp_project)
    manager.config.context_compact_text_enabled = True
    manager.config.context_compact_min_budget = 80
    manager.config.context_compact_head_ratio = 0.6

    content = {"a": "x" * 200, "b": "y" * 200}
    compact = manager._compact_json_text(content, budget=120)
    assert len(compact) <= 120
    assert "[TRUNCATED]" in compact

    manager.config.context_compact_text_enabled = False
    raw_cut = manager._compact_json_text(content, budget=100)
    assert len(raw_cut) <= 100


def test_context_manager_persist_writing_checklist_score_logs_failure(temp_project, monkeypatch, caplog):
    manager = ContextManager(temp_project)

    def _raise_save_error(_meta):
        raise RuntimeError("simulated save failure")

    monkeypatch.setattr(manager.index_manager, "save_writing_checklist_score", _raise_save_error)

    with caplog.at_level(logging.WARNING):
        manager._persist_writing_checklist_score(
            {
                "chapter": 6,
                "score": 70.0,
                "total_items": 3,
                "required_items": 1,
                "completed_items": 1,
                "completed_required": 1,
                "total_weight": 3.0,
                "completed_weight": 1.0,
                "completion_rate": 0.33,
                "pending_items": ["test"],
            }
        )

    message_text = "\n".join(record.getMessage() for record in caplog.records)
    assert "failed to persist writing checklist score" in message_text


def test_context_manager_composite_genre_boundary_three_plus(temp_project):
    manager = ContextManager(temp_project)
    manager.config.context_genre_profile_support_composite = True
    manager.config.context_genre_profile_max_genres = 3

    genre_raw = "电竞文+直播+克系+修仙/玄幻+电竞文"
    tokens = manager._parse_genre_tokens(genre_raw)
    assert tokens[:4] == ["电竞", "直播文", "克苏鲁", "修仙"]

    state = {
        "project": {"genre": genre_raw},
        "protagonist_state": {"name": "主角"},
        "chapter_meta": {},
        "disambiguation_warnings": [],
        "disambiguation_pending": [],
    }

    profile = manager._load_genre_profile(state)
    assert profile.get("composite") is True
    assert profile.get("genres") == ["电竞", "直播文", "克苏鲁"]
    assert profile.get("secondary_genres") == ["直播文", "克苏鲁"]

    profile_again = manager._load_genre_profile(state)
    assert profile_again.get("genres") == profile.get("genres")


def test_context_manager_dynamic_weights_from_config_override(temp_project):
    manager = ContextManager(temp_project)
    manager.config.context_dynamic_budget_enabled = True
    manager.config.context_template_weights_dynamic = {
        "early": {
            "plot": {"core": 0.60, "scene": 0.20, "global": 0.20},
        }
    }

    weights = manager._resolve_template_weights("plot", chapter=1)
    assert weights == {"core": 0.60, "scene": 0.20, "global": 0.20}