from datetime import UTC, datetime
from typing import Any
import uuid

from fastapi import APIRouter, Depends
from sqlmodel import Session

from ..core.redaction import redact_message
from ..db.session import get_session
from ..services import ai_security_reviewer, knowledge_service

router = APIRouter(prefix='/api/ai')


_AI_TOOLS = [
    {
        'id': 'read_container_status',
        'name': 'read_container_status',
        'description': 'Leest containerstatus via de Portainer read facade.',
        'type': 'read',
        'permissionLevel': 1,
        'requiresApproval': False,
        'rateLimit': '60/min',
        'tool': 'read_container_status',
        'enabled': True,
        'allowedByDefault': True,
        'scope': 'read',
    },
    {
        'id': 'read_unraid_health',
        'name': 'read_unraid_health',
        'description': 'Leest Unraid array, cache, parity en docker health zonder mutaties.',
        'type': 'read',
        'permissionLevel': 1,
        'requiresApproval': False,
        'rateLimit': '30/min',
        'tool': 'read_unraid_health',
        'enabled': True,
        'allowedByDefault': True,
        'scope': 'read',
    },
    {
        'id': 'read_audit',
        'name': 'read_audit',
        'description': 'Leest geredigeerde audit events voor analyse en incidentcontext.',
        'type': 'read',
        'permissionLevel': 1,
        'requiresApproval': False,
        'rateLimit': '30/min',
        'tool': 'read_audit',
        'enabled': True,
        'allowedByDefault': True,
        'scope': 'read',
    },
    {
        'id': 'query_knowledge',
        'name': 'query_knowledge',
        'description': 'Zoekt lokale documentatie en actuele, geredigeerde AppOps-context met bronverwijzingen.',
        'type': 'read',
        'permissionLevel': 1,
        'requiresApproval': False,
        'rateLimit': '30/min',
        'tool': 'query_knowledge',
        'enabled': True,
        'allowedByDefault': True,
        'scope': 'read',
    },
    {
        'id': 'draft_playbook_run',
        'name': 'draft_playbook_run',
        'description': 'Maakt alleen een voorstel voor playbook-uitvoering; uitvoering loopt via policy en approval.',
        'type': 'mutate',
        'permissionLevel': 3,
        'requiresApproval': True,
        'rateLimit': '5/min',
        'tool': 'draft_playbook_run',
        'enabled': True,
        'allowedByDefault': False,
        'scope': 'mutate',
    },
]


def _redact_payload(value: Any) -> Any:
    if isinstance(value, str):
        return redact_message(value)
    if isinstance(value, list):
        return [_redact_payload(item) for item in value]
    if isinstance(value, dict):
        return {str(key): _redact_payload(item) for key, item in value.items()}
    return value

@router.get('/status')
def status(session: Session = Depends(get_session)):
    summary = ai_security_reviewer.get_summary(session)
    current_risks = int(summary.get('criticalFindings') or 0) + int(summary.get('highFindings') or 0) + int(summary.get('mediumFindings') or 0)
    recommended_actions = int(summary.get('recommendationsCount') or 0)
    data_completeness = summary.get('dataCompleteness') if isinstance(summary.get('dataCompleteness'), dict) else {}
    missing_sources = data_completeness.get('missingSources') or []
    if missing_sources:
        storage_forecast = f"Coverage partial; ontbrekende bronnen: {', '.join(str(item) for item in missing_sources[:4])}."
    else:
        storage_forecast = 'Geen storage forecast beschikbaar in de advisory AI status.'

    return {
        'dailySummary': redact_message(
            f"AI advisor draait read-only. Security status: {summary.get('status', 'unknown')}; "
            f"{current_risks} open risico(s), {recommended_actions} aanbeveling(en)."
        ),
        'currentRisks': current_risks,
        'recommendedActions': recommended_actions,
        'storageForecast': redact_message(storage_forecast),
        'securityScore': int(summary.get('score') or 0),
        'autopilotStatus': 'off',
    }

@router.post('/chat')
def chat(payload: dict, session: Session = Depends(get_session)):
    content = redact_message(str(payload.get('content') or ''))
    try:
        grounded = knowledge_service.query(session, content, limit=5)
    except ValueError:
        grounded = {
            'answer': 'Stel een concrete vraag over AppOps, policies, apps, audit of platformwerking.',
            'citations': [],
            'confidence': 'none',
        }
    citations = grounded.get('citations') or []
    evidence = '; '.join(
        f"[{item.get('rank')}] {item.get('title')} — {item.get('uri')}"
        for item in citations[:5]
        if isinstance(item, dict)
    )
    return {
        'id': f"chat-{uuid.uuid4().hex[:12]}",
        'role': 'assistant',
        'content': grounded['answer'],
        'timestamp': datetime.now(UTC).isoformat(),
        'metadata': {
            'evidence': evidence or 'Geen relevante bron gevonden; er is niet gegokt.',
            'risk': 'low',
            'policyResult': 'allowed',
            'nextStep': 'RAG blijft read-only. Uitvoering loopt uitsluitend via Command Center, policy en approvals.',
            'citations': citations,
            'confidence': grounded.get('confidence', 'none'),
        },
    }

@router.get('/recommendations')
def recommendations(session: Session = Depends(get_session)):
    results: list[dict[str, Any]] = []
    for recommendation in ai_security_reviewer.get_recommendations(session):
        evidence = recommendation.get('evidence') or []
        evidence_text = '; '.join(
            redact_message(f"{item.get('source', 'source')}:{item.get('label', 'evidence')}={item.get('value', item.get('observed', ''))}")
            for item in evidence[:3]
            if isinstance(item, dict)
        ) or redact_message(str(recommendation.get('description') or 'Security reviewer recommendation.'))
        status = recommendation.get('status') or 'open'
        if status == 'accepted':
            status = 'applied'
        confidence = recommendation.get('confidence') or 'medium'
        confidence_score = {'low': 0.45, 'medium': 0.7, 'high': 0.9}.get(str(confidence), 0.7)
        severity = str(recommendation.get('severity') or 'medium')
        if severity == 'info':
            severity = 'low'
        results.append({
            'id': recommendation.get('id'),
            'title': redact_message(str(recommendation.get('title') or 'AI recommendation')),
            'severity': severity,
            'confidence': confidence_score,
            'evidence': evidence_text,
            'affectedApps': [str(item) for item in recommendation.get('affectedResources', [])],
            'suggestedAction': redact_message(str(recommendation.get('suggestedAction') or 'Review in AI Security Reviewer')),
            'status': status,
        })
    return results

@router.post('/analyze/incident/{incident_id}')
def analyze_incident(incident_id: str):
    return {'incident': incident_id, 'analysis': 'No blocking issues.'}

@router.post('/summarize/logs')
def summarize_logs(payload: dict):
    return {'summary': 'No critical events.'}

@router.get('/tools')
def tools():
    return _AI_TOOLS


@router.get('/history')
def history():
    return []

@router.get('/memory')
def memory():
    return []

@router.post('/memory')
def create_memory(payload: dict):
    return {'success': True, 'memory': _redact_payload(payload)}

@router.patch('/memory/{memory_id}')
def update_memory(memory_id: str, payload: dict):
    return {'success': True, 'id': memory_id, 'memory': _redact_payload(payload)}

@router.delete('/memory/{memory_id}')
def delete_memory(memory_id: str):
    return {'success': True, 'id': memory_id}