"""
Data Consistency Validator
Compares refactored service layer output with expected router output.
"""

# ============================================================================
# DATA STRUCTURE COMPARISON
# ============================================================================

"""
EXPECTED OUTPUT STRUCTURES (from router definition):
===================================================

GET /api/v3/players
------------------
Response: {
    "count": int,
    "players": [
        {
            "id": int,
            "name": str,
            "wara": float,
            "image": str,
            "image2": str | None,
            "team_id": int,
            "season": int,
            "pitcher_injury": str | None,
            "pos_1": str,
            "pos_2": str | None,
            ...
            "team": { "id": int, "abbrev": str, "sname": str, ... } | int  # if short_output
        }
    ]
}

GET /api/v3/players/{player_id}
-------------------------------
Response: Player dict or null

GET /api/v3/players/search
--------------------------
Response: {
    "count": int,
    "total_matches": int,
    "all_seasons": bool,
    "players": [Player dicts]
}


GET /api/v3/teams
------------------
Response: {
    "count": int,
    "teams": [
        {
            "id": int,
            "abbrev": str,
            "sname": str,
            "lname": str,
            "gmid": int | None,
            "gmid2": int | None,
            "manager1_id": int | None,
            "manager2_id": int | None,
            "division_id": int | None,
            "stadium": str | None,
            "thumbnail": str | None,
            "color": str | None,
            "dice_color": str | None,
            "season": int
        }
    ]
}

GET /api/v3/teams/{team_id}
----------------------------
Response: Team dict or null


EXPECTED BEHAVIOR DIFFERENCES (Issues Found):
=============================================

1. STATIC VS INSTANCE METHOD MISMATCH
   ├─ PlayerService.get_players() - Called as static in router
   │  └─ ISSUE: Method has `self` parameter - will fail!
   └─ TeamService.get_teams() - Correctly uses @classmethod
      └─ OK: Uses cls instead of self

2. FILTER FIELD INCONSISTENCY
   ├─ Router: name=str (exact match filter)
   └─ Service: name.lower() comparison
      └─ ISSUE: Different behavior!

3. POSITION FILTER INCOMPLETE
   ├─ Router: pos=[list of positions]
   └─ Service: Only checks pos_1 through pos_8
      └─ OK: Actually correct implementation

4. CSV OUTPUT DIFFERENCE
   ├─ Router: csv=bool, returns Response with content
   └─ Service: as_csv=bool, returns CSV string
      └─ OK: Just parameter name difference

5. INJURED FILTER SEMANTICS
   ├─ Router: is_injured=True → show injured players
   └─ Service: is_injured is not None → filter il_return IS NOT NULL
      └─ OK: Same behavior

6. SORT PARAMETER MAPPING
   ├─ Router: sort="name-asc" | "cost-desc" | etc
   └─ Service: Maps to Player.name.asc(), Player.wara.desc()
      └─ OK: Correct mapping

7. DEPENDENCY INJECTION INCOMPLETE
   ├─ Service imports: from ..db_engine import Player, Team
   │  └─ ISSUE: Still uses direct model imports for filtering!
   ├─ Service uses: Player.team_id << team_id (Peewee query)
   │  └─ ISSUE: This won't work with MockPlayerRepository!
   └─ Service uses: peewee_fn.lower(Player.strat_code)
      └─ ISSUE: This won't work with MockPlayerRepository!
      └─ ISSUE: MockPlayerRepository doesn't support peewee_fn!

8. RESPONSE FIELD DIFFERENCES
   ├─ get_players: count + players [✓ match]
   ├─ get_one_player: returns dict or null [✓ match]
   ├─ search_players: count + players + all_seasons [✓ match]
   ├─ get_teams: count + teams [✓ match]
   └─ get_one_team: returns dict or null [✓ match]

"""

# ============================================================================
# RECOMMENDED FIXES
# ============================================================================

"""
To make refactored code return EXACT SAME data:

1. FIX PLAYERSERVICE METHOD SIGNATURE
   Current:
     def get_players(self, season, team_id, pos, strat_code, name, ...):
   
   Fix: Add @classmethod decorator
   def get_players(cls, season, team_id, pos, strat_code, name, ...):
     - Use cls instead of self
     - Use Team.select() instead of self.team_repo

2. STANDARDIZE PARAMETER NAMES
   Rename:
     - as_csv → csv (to match router)
     - short_output stays (both use same)

3. IMPLEMENT REPO-AGNOSTIC FILTERING
   Current (broken):
     query.where(Player.team_id << team_id)
   
   Fix for Mock:
     def _apply_filters(query, team_id, pos, strat_code, name, is_injured):
         result = []
         for item in query:
             if team_id and item.get('team_id') not in team_id:
                 continue
             if strat_code and item.get('strat_code', '').lower() not in [s.lower() for s in strat_code]:
                 continue
             result.append(item)
         return result

4. REMOVE DEPENDENCY ON peewee_fn IN SERVICE LAYER
   Current:
     query.where(peewee_fn.lower(Player.name) == name.lower())
   
   Fix: Do string comparison in Python
     for player in query:
         if name and player.name.lower() != name.lower():
             continue

5. REMOVE UNNECESSARY IMPORTS
   Current in player_service.py:
     from peewee import fn as peewee_fn
     from ..db_engine import Player
   
   These imports break the dependency injection pattern.
   The service should ONLY use the repo interface.
"""

print(__doc__)