# app/modules/prospecting/routes/api/admin_prospects.py
"""
Admin API routes for prospect management.
"""

import logging
from math import ceil

from fastapi import APIRouter, Depends, Path, Query, UploadFile
from sqlalchemy.orm import Session

from app.api.deps import get_current_admin_api
from app.core.database import get_db
from app.modules.prospecting.schemas.prospect import (
    ProspectCreate,
    ProspectDeleteResponse,
    ProspectDetailResponse,
    ProspectImportResponse,
    ProspectListResponse,
    ProspectResponse,
    ProspectUpdate,
)
from app.modules.prospecting.services.prospect_service import prospect_service
from app.modules.tenancy.schemas.auth import UserContext

router = APIRouter(prefix="/prospects")
logger = logging.getLogger(__name__)


@router.get("", response_model=ProspectListResponse)
def list_prospects(
    page: int = Query(1, ge=1),
    per_page: int = Query(20, ge=1, le=100),
    search: str | None = Query(None),
    channel: str | None = Query(None),
    status: str | None = Query(None),
    tier: str | None = Query(None),
    city: str | None = Query(None),
    db: Session = Depends(get_db),
    current_admin: UserContext = Depends(get_current_admin_api),
):
    """List prospects with filters and pagination."""
    prospects, total = prospect_service.get_all(
        db,
        page=page,
        per_page=per_page,
        search=search,
        channel=channel,
        status=status,
        tier=tier,
        city=city,
    )
    return ProspectListResponse(
        items=[_to_response(p) for p in prospects],
        total=total,
        page=page,
        per_page=per_page,
        pages=ceil(total / per_page) if per_page else 0,
    )


@router.get("/{prospect_id}", response_model=ProspectDetailResponse)
def get_prospect(
    prospect_id: int = Path(...),
    db: Session = Depends(get_db),
    current_admin: UserContext = Depends(get_current_admin_api),
):
    """Get full prospect detail with all related data."""
    prospect = prospect_service.get_by_id(db, prospect_id)
    return prospect


@router.post("", response_model=ProspectResponse)
def create_prospect(
    data: ProspectCreate,
    db: Session = Depends(get_db),
    current_admin: UserContext = Depends(get_current_admin_api),
):
    """Create a new prospect (digital or offline)."""
    prospect = prospect_service.create(
        db,
        data.model_dump(exclude_none=True),
        captured_by_user_id=current_admin.id,
    )
    db.commit()
    return _to_response(prospect)


@router.put("/{prospect_id}", response_model=ProspectResponse)
def update_prospect(
    data: ProspectUpdate,
    prospect_id: int = Path(...),
    db: Session = Depends(get_db),
    current_admin: UserContext = Depends(get_current_admin_api),
):
    """Update a prospect."""
    prospect = prospect_service.update(db, prospect_id, data.model_dump(exclude_none=True))
    db.commit()
    return _to_response(prospect)


@router.delete("/{prospect_id}", response_model=ProspectDeleteResponse)
def delete_prospect(
    prospect_id: int = Path(...),
    db: Session = Depends(get_db),
    current_admin: UserContext = Depends(get_current_admin_api),
):
    """Delete a prospect."""
    prospect_service.delete(db, prospect_id)
    db.commit()
    return ProspectDeleteResponse(message="Prospect deleted")


@router.post("/import", response_model=ProspectImportResponse)
async def import_domains(
    file: UploadFile,
    db: Session = Depends(get_db),
    current_admin: UserContext = Depends(get_current_admin_api),
):
    """Import domains from a CSV file."""
    content = await file.read()
    lines = content.decode("utf-8").strip().split("\n")
    # Skip header if present
    domains = []
    for line in lines:
        domain = line.strip().strip(",").strip('"')
        if domain and "." in domain and not domain.startswith("#"):
            domains.append(domain)

    created, skipped = prospect_service.create_bulk(db, domains, source="csv_import")
    db.commit()
    return ProspectImportResponse(created=created, skipped=skipped, total=len(domains))


def _to_response(prospect) -> ProspectResponse:
    """Convert a prospect model to response schema."""
    import json

    contacts = prospect.contacts or []
    primary_email = next((c.value for c in contacts if c.contact_type == "email"), None)
    primary_phone = next((c.value for c in contacts if c.contact_type == "phone"), None)

    tags = None
    if prospect.tags:
        try:
            tags = json.loads(prospect.tags)
        except (json.JSONDecodeError, TypeError):
            tags = None

    score_resp = None
    if prospect.score:
        from app.modules.prospecting.schemas.score import ProspectScoreResponse

        reason_flags = []
        if prospect.score.reason_flags:
            try:
                reason_flags = json.loads(prospect.score.reason_flags)
            except (json.JSONDecodeError, TypeError):
                pass

        score_breakdown = None
        if prospect.score.score_breakdown:
            try:
                score_breakdown = json.loads(prospect.score.score_breakdown)
            except (json.JSONDecodeError, TypeError):
                pass

        score_resp = ProspectScoreResponse(
            id=prospect.score.id,
            prospect_id=prospect.score.prospect_id,
            score=prospect.score.score,
            technical_health_score=prospect.score.technical_health_score,
            modernity_score=prospect.score.modernity_score,
            business_value_score=prospect.score.business_value_score,
            engagement_score=prospect.score.engagement_score,
            reason_flags=reason_flags,
            score_breakdown=score_breakdown,
            lead_tier=prospect.score.lead_tier,
            notes=prospect.score.notes,
            created_at=prospect.score.created_at,
            updated_at=prospect.score.updated_at,
        )

    return ProspectResponse(
        id=prospect.id,
        channel=prospect.channel.value if prospect.channel else "digital",
        business_name=prospect.business_name,
        domain_name=prospect.domain_name,
        status=prospect.status.value if prospect.status else "pending",
        source=prospect.source,
        has_website=prospect.has_website,
        uses_https=prospect.uses_https,
        http_status_code=prospect.http_status_code,
        address=prospect.address,
        city=prospect.city,
        postal_code=prospect.postal_code,
        country=prospect.country,
        notes=prospect.notes,
        tags=tags,
        location_lat=prospect.location_lat,
        location_lng=prospect.location_lng,
        created_at=prospect.created_at,
        updated_at=prospect.updated_at,
        score=score_resp,
        primary_email=primary_email,
        primary_phone=primary_phone,
    )