Select Services & Seats - Chọn Dịch Vụ & Ghế

---

📋 Overview

Sau khi lấy danh sách services/seats từ API danh-sach-phu-tro-tim-ve, cần prepare data để thêm vào booking request.

No API call in this step - Just data preparation.

---

🎯 Select Services (Baggage & Food)

Step 1: Get Available Services

From 03-GET-SERVICES.md response:

const services = response.data["0"].dich_vu["0"];

Step 2: Filter by Type

// Baggage only
const baggage = services.filter((s) => s.loai_dich_vu === 2 && s.gia_net > 0);

// Food only
const food = services.filter((s) => s.loai_dich_vu === 1);

Step 3: Select Items

// Example: Select 30kg baggage
const selectedBaggage = baggage.find((b) => b.so_kg === "30");

// Example: Select Combo 1 food
const selectedFood = food.find((f) => f.ten.includes("Combo 1"));

Step 4: Build dich_vu Array for Booking

const dich_vu = [];

// Add baggage
if (selectedBaggage) {
  dich_vu.push({
    uuid_dich_vu: selectedBaggage.uuid,
    index_hanh_khach: 1, // Passenger index (1-based)
    index_chang_bay: 1, // Segment index (1-based)
  });
}

// Add food
if (selectedFood) {
  dich_vu.push({
    uuid_dich_vu: selectedFood.uuid,
    index_hanh_khach: 1,
    index_chang_bay: 1,
  });
}

Result:

{
  "dich_vu": [
    {
      "uuid_dich_vu": "7a3251f4-aee4-11f0-bd8c-86d224031662",
      "index_hanh_khach": 1,
      "index_chang_bay": 1
    },
    {
      "uuid_dich_vu": "7a35fd6e-aee4-11f0-bd8c-86d224031662",
      "index_hanh_khach": 1,
      "index_chang_bay": 1
    }
  ]
}

---

💺 Select Seats

Step 1: Get Seat Map

From 03-GET-SERVICES.md response:

const seatMap = response.data["0"].cho_ngoi;

Step 2: Flatten Seat Map

const allSeats = [];
Object.keys(seatMap).forEach((row) => {
  Object.keys(seatMap[row]).forEach((col) => {
    const seat = seatMap[row][col];
    if (seat) {
      allSeats.push(seat);
    }
  });
});

Step 3: Filter Available Seats

const availableSeats = allSeats.filter(
  (s) =>
    s.hop_le === true && // Valid seat
    s.trang_thai === false, // Not occupied
);

Step 4: Select a Seat

// Example: Select seat 12C
const selectedSeat = availableSeats.find((s) => s.ma_ghe === "12C");

// Or: Select random available seat
const randomSeat =
  availableSeats[Math.floor(Math.random() * availableSeats.length)];

Step 5: Build cho_ngoi Array for Booking

const cho_ngoi = [];

if (selectedSeat) {
  cho_ngoi.push({
    ma_cho_ngoi: selectedSeat.ma_cho_ngoi,
    uuid_cho_ngoi: selectedSeat.uuid,
    index_hanh_khach: 1, // Passenger index (1-based)
    index_chang_bay: 1, // Segment index (1-based)
    index_chuyen_bay: selectedSeat.index_chuyen_bay,
  });
}

Result:

{
  "cho_ngoi": [
    {
      "ma_cho_ngoi": "encoded-seat-code",
      "uuid_cho_ngoi": "7a5a7b02-aee4-11f0-bd8c-86d224031662",
      "index_hanh_khach": 1,
      "index_chang_bay": 1,
      "index_chuyen_bay": 0
    }
  ]
}

---

📝 Complete Booking Request Body

After selecting services & seats, include in Hold/Issue request:

{
  "api": "VJ",
  "nhieu_chang": 0,
  "chuyen_bay": [
    {
      "index": 1,
      "uuid": "flight-uuid-from-search",
      "phi_dai_ly": 0,
      "index_hang_cho": 0,
      "loai_phi_dai_ly": "Cơ bản"
    }
  ],
  "hanh_khach": [
    {
      "index": 1,
      "ho": "NGUYEN VAN",
      "ten": "TEST",
      "email": "test@example.com",
      "so_dien_thoai": "0987654321",
      "ngay_sinh": "01-01-1990",
      "the_thanh_vien": "",
      "loai_hanh_khach": 1,
      "danh_xung": 1,
      "cha_me_id": null,
      "ho_chieu": null
    }
  ],
  "thong_tin_booker": {
    "ho": "TRAN THI",
    "ten": "BOOKER",
    "email": "booker@example.com",
    "so_dien_thoai": "0912345678"
  },
  "dich_vu": [
    {
      "uuid_dich_vu": "7a3251f4-aee4-11f0-bd8c-86d224031662",
      "index_hanh_khach": 1,
      "index_chang_bay": 1
    },
    {
      "uuid_dich_vu": "7a35fd6e-aee4-11f0-bd8c-86d224031662",
      "index_hanh_khach": 1,
      "index_chang_bay": 1
    }
  ],
  "cho_ngoi": [
    {
      "ma_cho_ngoi": "encoded-seat-code",
      "uuid_cho_ngoi": "7a5a7b02-aee4-11f0-bd8c-86d224031662",
      "index_hanh_khach": 1,
      "index_chang_bay": 1,
      "index_chuyen_bay": 0
    }
  ],
  "ma_khuyen_mai": "",
  "trang_thai": 0,
  "xac_nhan_ve_dup": "",
  "xac_nhan_thay_doi_gia": "",
  "tong_gia_ve": 0,
  "xac_nhan_cho_du_bi": ""
}

---

⚠️ Important Notes

1. Index Conventions

Field	Indexing	Example
index_hanh_khach	1-based	1, 2, 3
index_chang_bay	1-based	1, 2
index_chuyen_bay	0-based	0, 1

2. Multiple Passengers

For 2 passengers:

{
  "dich_vu": [
    {
      "uuid_dich_vu": "baggage-uuid",
      "index_hanh_khach": 1,  // Passenger 1
      "index_chang_bay": 1
    },
    {
      "uuid_dich_vu": "baggage-uuid-2",
      "index_hanh_khach": 2,  // Passenger 2
      "index_chang_bay": 1
    }
  ],
  "cho_ngoi": [
    {
      "uuid_cho_ngoi": "seat-1A-uuid",
      "index_hanh_khach": 1
    },
    {
      "uuid_cho_ngoi": "seat-1B-uuid",
      "index_hanh_khach": 2
    }
  ]
}

3. UUID Freshness

Get fresh UUIDs immediately before booking:

// ❌ Bad: Get services → wait 10 minutes → book
await getServices();
await sleep(600000); // 10 minutes
await bookWithServices(); // UUIDs expired!

// ✅ Good: Get services → immediately book
await getServices();
await bookWithServices(); // UUIDs still valid

4. Optional Fields

Can book without services/seats:

{
  "dich_vu": [], // No services
  "cho_ngoi": [] // No seats
}

5. Service Types

Can mix baggage and food:

dich_vu = [
  { uuid_dich_vu: "baggage-uuid", ... },  // Baggage
  { uuid_dich_vu: "food-uuid", ... }      // Food
]

---

🎯 Practical Examples

Example 1: Book with Baggage Only

const dich_vu = [
  {
    uuid_dich_vu: selectedBaggage.uuid,
    index_hanh_khach: 1,
    index_chang_bay: 1,
  },
];

const cho_ngoi = []; // No seat selection

Example 2: Book with Seat Only

const dich_vu = []; // No services

const cho_ngoi = [
  {
    ma_cho_ngoi: selectedSeat.ma_cho_ngoi,
    uuid_cho_ngoi: selectedSeat.uuid,
    index_hanh_khach: 1,
    index_chang_bay: 1,
    index_chuyen_bay: 0,
  },
];

Example 3: Book with Everything

const dich_vu = [
  { uuid_dich_vu: baggage.uuid, index_hanh_khach: 1, index_chang_bay: 1 },
  { uuid_dich_vu: food.uuid, index_hanh_khach: 1, index_chang_bay: 1 },
];

const cho_ngoi = [
  {
    ma_cho_ngoi: seat.ma_cho_ngoi,
    uuid_cho_ngoi: seat.uuid,
    index_hanh_khach: 1,
    index_chang_bay: 1,
    index_chuyen_bay: 0,
  },
];

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🔗 Next Steps

After preparing dich_vu and cho_ngoi arrays:

1. Hold Booking → 05-HOLD-BOOKING.md

   • Include dich_vu and cho_ngoi in request

2. Issue Ticket → 06-ISSUE-TICKET.md

   • Include dich_vu and cho_ngoi in request

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📝 Notes

• This is a data preparation step, no API call
• Get fresh services/seats immediately before booking
• UUIDs expire in ~5-10 minutes
• index_hanh_khach and index_chang_bay are 1-based
• index_chuyen_bay is 0-based
• Can book with any combination: services only, seats only, or both
• Empty arrays ([]) are valid for no services/seats