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devRaGonSa
261
backend/app/player_event_aggregates.py
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261
backend/app/player_event_aggregates.py
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"""Derived duel and weapon aggregates computed from the raw player event ledger."""
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from __future__ import annotations
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import sqlite3
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from pathlib import Path
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from .config import get_database_url, get_storage_path
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from .player_event_storage import initialize_player_event_storage
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def list_most_killed(
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*,
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server_slug: str | None = None,
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month: str | None = None,
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external_match_id: str | None = None,
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limit: int = 10,
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db_path: Path | None = None,
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) -> list[dict[str, object]]:
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"""Return strongest killer -> victim summaries from the raw ledger."""
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return _query_pair_summary(
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event_type="player_kill_summary",
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server_slug=server_slug,
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month=month,
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external_match_id=external_match_id,
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limit=limit,
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db_path=db_path,
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)
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def list_death_by(
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*,
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server_slug: str | None = None,
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month: str | None = None,
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external_match_id: str | None = None,
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limit: int = 10,
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db_path: Path | None = None,
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) -> list[dict[str, object]]:
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"""Return strongest killer -> victim summaries from the victim perspective."""
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return _query_pair_summary(
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event_type="player_death_summary",
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server_slug=server_slug,
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month=month,
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external_match_id=external_match_id,
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limit=limit,
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db_path=db_path,
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)
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def list_net_duel_summaries(
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*,
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server_slug: str | None = None,
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month: str | None = None,
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external_match_id: str | None = None,
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limit: int = 10,
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db_path: Path | None = None,
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) -> list[dict[str, object]]:
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"""Return partial net duel summaries using the strongest encounter signals available."""
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resolved_path = initialize_player_event_storage(db_path=db_path)
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where_sql, params = _build_common_where(
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event_type="player_kill_summary",
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server_slug=server_slug,
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month=month,
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external_match_id=external_match_id,
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)
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with _connect(resolved_path) as connection:
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rows = connection.execute(
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f"""
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WITH duel_pairs AS (
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SELECT
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CASE
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WHEN COALESCE(killer_player_key, '') <= COALESCE(victim_player_key, '')
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THEN killer_player_key
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ELSE victim_player_key
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END AS player_a_key,
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CASE
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WHEN COALESCE(killer_player_key, '') <= COALESCE(victim_player_key, '')
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THEN killer_display_name
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ELSE victim_display_name
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END AS player_a_name,
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CASE
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WHEN COALESCE(killer_player_key, '') <= COALESCE(victim_player_key, '')
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THEN victim_player_key
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ELSE killer_player_key
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END AS player_b_key,
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CASE
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WHEN COALESCE(killer_player_key, '') <= COALESCE(victim_player_key, '')
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THEN victim_display_name
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ELSE killer_display_name
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END AS player_b_name,
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CASE
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WHEN COALESCE(killer_player_key, '') <= COALESCE(victim_player_key, '')
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THEN event_value
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ELSE -event_value
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END AS net_value,
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event_value
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FROM player_event_raw_ledger
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WHERE {where_sql}
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AND killer_player_key IS NOT NULL
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AND victim_player_key IS NOT NULL
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)
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SELECT
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player_a_key,
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player_a_name,
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player_b_key,
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player_b_name,
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COALESCE(SUM(event_value), 0) AS total_encounters,
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COALESCE(SUM(net_value), 0) AS net_duel_value
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FROM duel_pairs
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GROUP BY player_a_key, player_a_name, player_b_key, player_b_name
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ORDER BY ABS(COALESCE(SUM(net_value), 0)) DESC,
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COALESCE(SUM(event_value), 0) DESC,
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player_a_name ASC,
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player_b_name ASC
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LIMIT ?
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""",
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[*params, limit],
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).fetchall()
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return [dict(row) for row in rows]
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def list_weapon_kills(
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*,
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server_slug: str | None = None,
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month: str | None = None,
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external_match_id: str | None = None,
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limit: int = 10,
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db_path: Path | None = None,
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) -> list[dict[str, object]]:
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"""Return partial weapon summaries derived from top kill events."""
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resolved_path = initialize_player_event_storage(db_path=db_path)
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where_sql, params = _build_common_where(
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event_type="player_weapon_kill_summary",
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server_slug=server_slug,
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month=month,
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external_match_id=external_match_id,
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)
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with _connect(resolved_path) as connection:
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rows = connection.execute(
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f"""
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SELECT
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killer_player_key,
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killer_display_name,
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COALESCE(weapon_name, 'unknown') AS weapon_name,
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COALESCE(SUM(event_value), 0) AS total_kills
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FROM player_event_raw_ledger
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WHERE {where_sql}
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AND killer_player_key IS NOT NULL
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GROUP BY killer_player_key, killer_display_name, COALESCE(weapon_name, 'unknown')
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ORDER BY total_kills DESC, killer_display_name ASC, weapon_name ASC
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LIMIT ?
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""",
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[*params, limit],
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).fetchall()
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return [dict(row) for row in rows]
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def list_teamkill_summaries(
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*,
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server_slug: str | None = None,
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month: str | None = None,
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external_match_id: str | None = None,
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limit: int = 10,
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db_path: Path | None = None,
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) -> list[dict[str, object]]:
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"""Return derived teamkill totals per player from the raw ledger."""
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resolved_path = initialize_player_event_storage(db_path=db_path)
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where_sql, params = _build_common_where(
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event_type="player_teamkill_summary",
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server_slug=server_slug,
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month=month,
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external_match_id=external_match_id,
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)
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with _connect(resolved_path) as connection:
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rows = connection.execute(
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f"""
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SELECT
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killer_player_key,
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killer_display_name,
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COALESCE(SUM(event_value), 0) AS total_teamkills
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FROM player_event_raw_ledger
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WHERE {where_sql}
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AND killer_player_key IS NOT NULL
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GROUP BY killer_player_key, killer_display_name
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ORDER BY total_teamkills DESC, killer_display_name ASC
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LIMIT ?
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""",
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[*params, limit],
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).fetchall()
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return [dict(row) for row in rows]
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def _query_pair_summary(
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*,
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event_type: str,
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server_slug: str | None,
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month: str | None,
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external_match_id: str | None,
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limit: int,
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db_path: Path | None,
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) -> list[dict[str, object]]:
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resolved_path = initialize_player_event_storage(db_path=db_path)
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where_sql, params = _build_common_where(
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event_type=event_type,
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server_slug=server_slug,
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month=month,
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external_match_id=external_match_id,
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)
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with _connect(resolved_path) as connection:
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rows = connection.execute(
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f"""
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SELECT
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killer_player_key,
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killer_display_name,
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victim_player_key,
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victim_display_name,
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COALESCE(SUM(event_value), 0) AS total_kills
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FROM player_event_raw_ledger
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WHERE {where_sql}
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AND killer_player_key IS NOT NULL
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AND victim_player_key IS NOT NULL
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GROUP BY killer_player_key, killer_display_name, victim_player_key, victim_display_name
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ORDER BY total_kills DESC, killer_display_name ASC, victim_display_name ASC
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LIMIT ?
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""",
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[*params, limit],
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).fetchall()
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return [dict(row) for row in rows]
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def _build_common_where(
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*,
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event_type: str,
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server_slug: str | None,
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month: str | None,
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external_match_id: str | None,
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) -> tuple[str, list[object]]:
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clauses = ["event_type = ?"]
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params: list[object] = [event_type]
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if server_slug and server_slug != "all-servers":
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clauses.append("server_slug = ?")
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params.append(server_slug.strip())
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if month:
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clauses.append("substr(COALESCE(CAST(occurred_at AS TEXT), ''), 1, 7) = ?")
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params.append(month.strip())
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if external_match_id:
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clauses.append("external_match_id = ?")
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params.append(external_match_id.strip())
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return " AND ".join(clauses), params
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def _connect(db_path: Path) -> sqlite3.Connection:
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if get_database_url():
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from .postgres_display_storage import connect_postgres_compat
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return connect_postgres_compat()
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connection = sqlite3.connect(db_path or get_storage_path())
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connection.row_factory = sqlite3.Row
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return connection
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