from __future__ import annotations

from dataclasses import dataclass
from pathlib import Path

from cyber_agent.application import (
    AgentApplication,
    AgentRole,
    ApplicationServices,
    ProviderRef,
    QualityRuleSpec,
    ToolSet,
    ToolSpec,
)
from cyber_agent.tools import get_tool_registry

from .providers import (
    PlaceholderQualityProvider,
    ReferenceArtifactStore,
    ReferenceCandidateRepository,
    ReferenceContextProvider,
    ReferenceProjector,
)
from .tools import FactVerifier


_ROLES = Path(__file__).with_name("roles")


def _prompt(role_id: str) -> str:
    return (_ROLES / f"{role_id}.prompt").read_text(encoding="utf-8").strip()


@dataclass(frozen=True)
class ReferenceComponents:
    application: AgentApplication
    services: ApplicationServices
    artifacts: ReferenceArtifactStore
    candidates: ReferenceCandidateRepository
    context: ReferenceContextProvider
    facts: FactVerifier
    projector: ReferenceProjector


def build_reference_components() -> ReferenceComponents:
    artifacts = ReferenceArtifactStore()
    candidates = ReferenceCandidateRepository(artifacts)
    context = ReferenceContextProvider()
    facts = FactVerifier(artifacts)
    projector = ReferenceProjector()
    registry = get_tool_registry().clone()

    async def verify_fact(question: str) -> dict:
        """Runtime tests use FactVerifier directly so hidden identity stays framework-owned."""
        return {"question": question}

    registry.register(verify_fact)
    application = AgentApplication(
        application_id="application_reference",
        application_version="1",
        root_role="editor",
        roles=(
            AgentRole(
                role_id="editor",
                model="reference-model",
                system_prompt=_prompt("editor"),
                tool_sets=("editor-tools",),
                allowed_child_roles=("fact_checker", "writer"),
            ),
            AgentRole(
                role_id="fact_checker",
                model="reference-model",
                system_prompt=_prompt("fact_checker"),
                tool_sets=("fact-tools",),
            ),
            AgentRole(
                role_id="writer",
                model="reference-model",
                system_prompt=_prompt("writer"),
                tool_sets=("writer-tools",),
            ),
        ),
        tool_sets=(
            ToolSet(
                tool_set_id="editor-tools",
                tools=tuple(ToolSpec(
                    tool_name=name,
                    implementation_version="framework-1",
                ) for name in (
                    "agent",
                    "update_task_progress",
                    "review_task_result",
                )),
            ),
            ToolSet(
                tool_set_id="fact-tools",
                tools=(
                    ToolSpec(
                        tool_name="verify_fact",
                        implementation_version="1",
                        side_effect_class="read",
                    ),
                    ToolSpec(
                        tool_name="update_task_progress",
                        implementation_version="framework-1",
                    ),
                    ToolSpec(
                        tool_name="submit_task_report",
                        implementation_version="framework-1",
                    ),
                ),
            ),
            ToolSet(
                tool_set_id="writer-tools",
                tools=tuple(ToolSpec(
                    tool_name=name,
                    implementation_version="framework-1",
                    side_effect_class=("write" if name == "manage_candidate" else "none"),
                ) for name in (
                    "manage_candidate",
                    "update_task_progress",
                    "submit_task_report",
                )),
            ),
        ),
        artifact_resolver_ref=ProviderRef(
            provider_id="reference-artifacts",
            provider_version="1",
        ),
        context_provider_ref=ProviderRef(
            provider_id="reference-context",
            provider_version="1",
        ),
        candidate_repository_ref=ProviderRef(
            provider_id="reference-candidates",
            provider_version="1",
        ),
        quality_provider_ref=ProviderRef(
            provider_id="reference-quality",
            provider_version="1",
        ),
        event_projector_ref=ProviderRef(
            provider_id="reference-projector",
            provider_version="1",
        ),
        quality_rules=(QualityRuleSpec(
            rule_id="no_placeholder",
            version="1",
            criterion="Candidate output contains no placeholder description.",
        ),),
    )
    services = ApplicationServices(
        tool_registry=registry,
        context_provider=context,
        artifact_resolver=artifacts,
        candidate_repository=candidates,
        quality_provider=PlaceholderQualityProvider(),
        event_projector=projector,
    )
    return ReferenceComponents(
        application=application,
        services=services,
        artifacts=artifacts,
        candidates=candidates,
        context=context,
        facts=facts,
        projector=projector,
    )