// Supabase Edge Function: Bazi Analyzer
// This function analyzes Chinese Four Pillars (Bazi) astrology

import { serve } from 'https://deno.land/std@0.168.0/http/server.ts'
import { createClient } from 'https://esm.sh/@supabase/supabase-js@2'

const corsHeaders = {
  'Access-Control-Allow-Origin': '*',
  'Access-Control-Allow-Headers': 'authorization, x-client-info, apikey, content-type',
}

interface BaziRequest {
  birthDate: string
  birthTime: string
  gender: 'male' | 'female'
  location?: string
}

interface BaziResponse {
  success: boolean
  data?: {
    fourPillars: {
      year: { heavenlyStem: string; earthlyBranch: string }
      month: { heavenlyStem: string; earthlyBranch: string }
      day: { heavenlyStem: string; earthlyBranch: string }
      hour: { heavenlyStem: string; earthlyBranch: string }
    }
    elements: {
      wood: number
      fire: number
      earth: number
      metal: number
      water: number
    }
    analysis: {
      personality: string
      career: string
      health: string
      relationships: string
    }
  }
  error?: string
}

serve(async (req) => {
  // Handle CORS preflight requests
  if (req.method === 'OPTIONS') {
    return new Response('ok', { headers: corsHeaders })
  }

  try {
    // Initialize Supabase client
    const supabaseClient = createClient(
      Deno.env.get('SUPABASE_URL') ?? '',
      Deno.env.get('SUPABASE_ANON_KEY') ?? '',
      {
        global: {
          headers: { Authorization: req.headers.get('Authorization')! },
        },
      }
    )

    // Get the current user
    const {
      data: { user },
    } = await supabaseClient.auth.getUser()

    if (!user) {
      return new Response(
        JSON.stringify({ success: false, error: 'Unauthorized' }),
        {
          status: 401,
          headers: { ...corsHeaders, 'Content-Type': 'application/json' },
        }
      )
    }

    // Parse request body
    const { birthDate, birthTime, gender, location }: BaziRequest = await req.json()

    if (!birthDate || !birthTime || !gender) {
      return new Response(
        JSON.stringify({ success: false, error: 'Missing required fields' }),
        {
          status: 400,
          headers: { ...corsHeaders, 'Content-Type': 'application/json' },
        }
      )
    }

    // TODO: Implement actual Bazi calculation logic
    // For now, return mock data
    const mockAnalysis: BaziResponse = {
      success: true,
      data: {
        fourPillars: {
          year: { heavenlyStem: '甲', earthlyBranch: '子' },
          month: { heavenlyStem: '乙', earthlyBranch: '丑' },
          day: { heavenlyStem: '丙', earthlyBranch: '寅' },
          hour: { heavenlyStem: '丁', earthlyBranch: '卯' },
        },
        elements: {
          wood: 2,
          fire: 1,
          earth: 1,
          metal: 0,
          water: 1,
        },
        analysis: {
          personality: '性格温和，具有创造力，善于沟通。',
          career: '适合从事创意、教育或咨询相关工作。',
          health: '注意肝胆和心血管健康。',
          relationships: '人际关系良好，容易获得他人信任。',
        },
      },
    }

    // Save analysis to database
    const { error: insertError } = await supabaseClient
      .from('analysis_history')
      .insert({
        user_id: user.id,
        analysis_type: 'bazi',
        input_data: { birthDate, birthTime, gender, location },
        result_data: mockAnalysis.data,
      })

    if (insertError) {
      console.error('Error saving analysis:', insertError)
    }

    return new Response(JSON.stringify(mockAnalysis), {
      headers: { ...corsHeaders, 'Content-Type': 'application/json' },
    })
  } catch (error) {
    console.error('Error in bazi-analyzer:', error)
    return new Response(
      JSON.stringify({ success: false, error: 'Internal server error' }),
      {
        status: 500,
        headers: { ...corsHeaders, 'Content-Type': 'application/json' },
      }
    )
  }
})