sync

app/api/sales/route.ts

@@ -0,0 +1,104 @@
+import { NextRequest, NextResponse } from 'next/server'
+import { cookies } from 'next/headers'
+import pool from '@/lib/db'
+
+// POST /api/sales - Create a new sale
+export async function POST(request: NextRequest) {
+  try {
+    // Get buyer_id from session cookie
+    const cookieStore = await cookies()
+    const buyerIdCookie = cookieStore.get('buyer_id')?.value
+
+    if (!buyerIdCookie) {
+      return NextResponse.json(
+        { error: 'Authentication required. Please log in to make a purchase.' },
+        { status: 401 }
+      )
+    }
+
+    const buyer_id = parseInt(buyerIdCookie, 10)
+
+    const body = await request.json()
+    const { drop_id, size } = body
+
+    // Validate required fields
+    if (!drop_id || !size) {
+      return NextResponse.json(
+        { error: 'Missing required fields: drop_id, size' },
+        { status: 400 }
+      )
+    }
+
+    // Validate size is positive
+    if (size <= 0) {
+      return NextResponse.json(
+        { error: 'Size must be greater than 0' },
+        { status: 400 }
+      )
+    }
+
+    // Check if drop exists and get its details
+    const [dropRows] = await pool.execute(
+      'SELECT * FROM drops WHERE id = ?',
+      [drop_id]
+    )
+    const drops = dropRows as any[]
+    if (drops.length === 0) {
+      return NextResponse.json(
+        { error: 'Drop not found' },
+        { status: 404 }
+      )
+    }
+
+    const drop = drops[0]
+
+    // Calculate current fill from sales
+    const [salesRows] = await pool.execute(
+      'SELECT COALESCE(SUM(size), 0) as total_fill FROM sales WHERE drop_id = ?',
+      [drop_id]
+    )
+    const salesData = salesRows as any[]
+    const currentFill = salesData[0]?.total_fill || 0
+
+    // Convert fill to the drop's unit for comparison
+    let currentFillInDropUnit = currentFill
+    let sizeInDropUnit = size
+    if (drop.unit === 'kg') {
+      // If drop unit is kg, convert sales (in grams) to kg
+      currentFillInDropUnit = currentFill / 1000
+      sizeInDropUnit = size / 1000
+    }
+
+    // Check if there's enough remaining inventory
+    const remaining = drop.size - currentFillInDropUnit
+    if (sizeInDropUnit > remaining) {
+      return NextResponse.json(
+        { error: 'Not enough inventory remaining' },
+        { status: 400 }
+      )
+    }
+
+    // Insert new sale
+    const [result] = await pool.execute(
+      'INSERT INTO sales (drop_id, buyer_id, size) VALUES (?, ?, ?)',
+      [drop_id, buyer_id, size]
+    )
+
+    const insertId = (result as any).insertId
+
+    // Fetch the created sale
+    const [rows] = await pool.execute('SELECT * FROM sales WHERE id = ?', [
+      insertId,
+    ])
+
+    const sales = rows as any[]
+    return NextResponse.json(sales[0], { status: 201 })
+  } catch (error) {
+    console.error('Error creating sale:', error)
+    return NextResponse.json(
+      { error: 'Failed to create sale' },
+      { status: 500 }
+    )
+  }
+}
+