#!/usr/bin/env python3
"""Main FastAPI application for AI Lead Generation Agency"""
from fastapi import FastAPI, HTTPException
from pydantic import BaseModel, Field
from typing import List, Optional
from datetime import datetime
import json

app = FastAPI(
    title="AI Lead Generation Agency API",
    version="1.0.0",
    description="Generate, score, and nurture B2B leads with AI"
)

# Import scoring components
import sys
sys.path.insert(0, '/home/brettanthonysjoberg179/trifecta-bro-hf-space/scripts')

# Models
class LeadInput(BaseModel):
    company: str
    job_title: str
    industry: str
    revenue: Optional[str] = None
    employees: Optional[int] = None
    tech_stack: List[str] = Field(default_factory=list)
    engagement: dict = Field(default_factory=dict)


class ScoreResponse(BaseModel):
    company: str
    job_title: str
    lead_score: int
    priority: str
    confidence: str
    next_action: str
    estimated_value: Optional[str] = None


# In-memory storage (use DB in production)
_lead_storage = {}


@app.get("/")
async def root():
    return {
        "agency": "AI Lead Generation",
        "version": "1.0.0",
        "endpoints": [
            "/api/v1/leads/score",
            "/api/v1/leads/process",
            "/api/v1/campaigns/run"
        ]
    }


@app.post("/api/v1/leads/score", response_model=ScoreResponse)
async def score_lead(lead: LeadInput):
    """Score a single lead and return priority level"""
    
    # Simple scoring logic
    score = 0
    
    # Job title bonus
    senior_titles = ['CEO', 'CTO', 'CMO', 'VP', 'Director', 'Head', 'Founder']
    if any(t in lead.job_title.upper() for t in senior_titles):
        score += 25
    
    # Company size bonus
    if lead.revenue:
        try:
            rev = float(lead.revenue.replace('$', '').replace(',', ''))
            if rev >= 10000000:
                score += 20
            elif rev >= 1000000:
                score += 15
        except:
            pass
    
    if lead.employees and lead.employees >= 50:
        score += 15
    
    # Engagement bonus
    eng = lead.engagement.get('website_visits', 0)
    if eng >= 10:
        score += 20
    elif eng >= 5:
        score += 10
    
    # Tech stack bonus
    if lead.tech_stack:
        score += min(15, len(lead.tech_stack) * 3)
    
    # Industry bonus
    target_industries = ['SaaS', 'Technology', 'Software', 'Healthcare', 'Finance', 'E-commerce']
    if any(i in lead.industry for i in target_industries):
        score += 20
    
    # Priority determination
    if score >= 80:
        priority = "immediate"
        next_action = "Schedule immediate outreach"
        confidence = "high"
    elif score >= 65:
        priority = "high"
        next_action = "Send personalized sequence"
        confidence = "medium-high"
    elif score >= 50:
        priority = "medium"
        next_action = "Add to nurture campaign"
        confidence = "medium"
    else:
        priority = "low"
        next_action = "Monitor for engagement signals"
        confidence = "low"
    
    # Store for history
    _lead_storage[lead.company] = {
        "score": score,
        "priority": priority,
        "timestamp": datetime.utcnow().isoformat()
    }
    
    return ScoreResponse(
        company=lead.company,
        job_title=lead.job_title,
        lead_score=score,
        priority=priority,
        confidence=confidence,
        next_action=next_action
    )


@app.post("/api/v1/leads/process")
async def process_leads(leads: List[LeadInput]):
    """Process multiple leads at once"""
    results = []
    
    for lead in leads:
        result = await score_lead(lead)
        results.append(result.dict())
    
    return {
        "total": len(results),
        "by_priority": {
            "immediate": len([r for r in results if r['priority'] == 'immediate']),
            "high": len([r for r in results if r['priority'] == 'high']),
            "medium": len([r for r in results if r['priority'] == 'medium']),
            "low": len([r for r in results if r['priority'] == 'low'])
        },
        "leads": results
    }


@app.post("/api/v1/campaigns/run")
async def run_campaign(
    target_industry: str,
    budget: float = 1000,
    channels: List[str] = ["email", "linkedin"]
):
    """Run a lead generation campaign"""
    
    # Estimate leads based on industry and budget
    leads_per_dollar = {
        "SaaS": 0.15,
        "Healthcare": 0.12,
        "Finance": 0.18,
        "E-commerce": 0.20,
        "Technology": 0.25,
        "default": 0.10
    }
    
    multiplier = leads_per_dollar.get(target_industry, leads_per_dollar['default'])
    estimated_leads = int(budget * multiplier)
    
    return {
        "campaign": {
            "target_industry": target_industry,
            "budget": budget,
            "channels": channels
        },
        "forecast": {
            "estimated_leads": estimated_leads,
            "expected_meetings": max(1, estimated_leads // 25),
            "expected_revenue": budget * 5,
            "agency_take_rate": 0.20
        }
    }


@app.get("/api/v1/health")
async def health_check():
    return {
        "status": "healthy",
        "timestamp": datetime.utcnow().isoformat(),
        "leads_processed": len(_lead_storage)
    }


if __name__ == "__main__":
    import uvicorn
    uvicorn.run(app, host="0.0.0.0", port=8000)