"""ASV benchmarks for DecisionService recording throughput.

Measures record_decision, list_decisions, get_tree, and snapshot operations.
"""

from __future__ import annotations

import sys
from pathlib import Path

try:
    from cleveragents.application.services.decision_service import (
        DecisionService,
        SnapshotStore,
    )
    from cleveragents.domain.models.core.decision import (
        ContextSnapshot,
        DecisionType,
    )
except ModuleNotFoundError:
    sys.path.insert(0, str(Path(__file__).resolve().parents[1] / "src"))
    from cleveragents.application.services.decision_service import (
        DecisionService,
        SnapshotStore,
    )
    from cleveragents.domain.models.core.decision import (
        ContextSnapshot,
        DecisionType,
    )


_PLAN_ID = "01HV00000000000000BENCH002"


class TimeRecordDecision:
    """Benchmark decision recording throughput."""

    timeout = 60

    def setup(self):
        self.svc = DecisionService()
        self._plan_counter = 0

    def time_record_single(self):
        self._plan_counter += 1
        plan_id = f"01HV00000000000000BN{self._plan_counter:06d}"
        self.svc.record_decision(
            plan_id=plan_id,
            decision_type=DecisionType.STRATEGY_CHOICE,
            question="Benchmark question",
            chosen_option="Benchmark choice",
        )


class TimeRecordBatch:
    """Benchmark recording 50 decisions for one plan."""

    timeout = 60

    def time_record_50(self):
        svc = DecisionService()
        root = svc.record_decision(
            plan_id=_PLAN_ID,
            decision_type=DecisionType.PROMPT_DEFINITION,
            question="Root",
            chosen_option="Root choice",
        )
        for _ in range(49):
            svc.record_decision(
                plan_id=_PLAN_ID,
                decision_type=DecisionType.STRATEGY_CHOICE,
                question="Child",
                chosen_option="Child choice",
                parent_decision_id=root.decision_id,
            )


class TimeListDecisions:
    """Benchmark list_decisions with 50 pre-seeded decisions."""

    timeout = 60

    def setup(self):
        self.svc = DecisionService()
        root = self.svc.record_decision(
            plan_id=_PLAN_ID,
            decision_type=DecisionType.PROMPT_DEFINITION,
            question="Root",
            chosen_option="Root choice",
        )
        for _ in range(49):
            self.svc.record_decision(
                plan_id=_PLAN_ID,
                decision_type=DecisionType.STRATEGY_CHOICE,
                question="Child",
                chosen_option="Child choice",
                parent_decision_id=root.decision_id,
            )

    def time_list_all(self):
        self.svc.list_decisions(_PLAN_ID)

    def time_list_by_type(self):
        self.svc.list_by_type(_PLAN_ID, DecisionType.STRATEGY_CHOICE)


class TimeGetTree:
    """Benchmark get_tree with a 3-level tree (1 + 3 + 6 = 10 nodes)."""

    timeout = 60

    def setup(self):
        self.svc = DecisionService()
        root = self.svc.record_decision(
            plan_id=_PLAN_ID,
            decision_type=DecisionType.PROMPT_DEFINITION,
            question="Root",
            chosen_option="Root choice",
        )
        for _ in range(3):
            child = self.svc.record_decision(
                plan_id=_PLAN_ID,
                decision_type=DecisionType.STRATEGY_CHOICE,
                question="Child",
                chosen_option="Child choice",
                parent_decision_id=root.decision_id,
            )
            for _ in range(2):
                self.svc.record_decision(
                    plan_id=_PLAN_ID,
                    decision_type=DecisionType.IMPLEMENTATION_CHOICE,
                    question="Grandchild",
                    chosen_option="GC choice",
                    parent_decision_id=child.decision_id,
                )

    def time_get_tree(self):
        self.svc.get_tree(_PLAN_ID)


class TimeSnapshotStore:
    """Benchmark SnapshotStore operations."""

    timeout = 60

    def setup(self):
        self.store = SnapshotStore()
        self._counter = 0
        # Pre-seed 100 snapshots
        for i in range(100):
            snap = ContextSnapshot(
                hot_context_hash=f"sha256:bench{i:04d}",
                hot_context_ref=f"ref-{i}",
            )
            self.store.store(f"DEC_{i:06d}", snap)

    def time_store_snapshot(self):
        self._counter += 1
        snap = ContextSnapshot(
            hot_context_hash=f"sha256:new{self._counter:06d}",
            hot_context_ref=f"ref-new-{self._counter}",
        )
        self.store.store(f"NEW_{self._counter:06d}", snap)

    def time_get_by_hash(self):
        self.store.get_by_hash("sha256:bench0050")

    def time_get_snapshot(self):
        self.store.get("DEC_000050")