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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 | 2x 2x 2x 2x 2x 2x | // Borrowing controller
const Borrowing = require("../models/Borrowing");
const Book = require("../models/Book");
const Member = require("../models/Member");
const calculateFine = (dueDate, returnDate) => {
const due = new Date(dueDate);
const returned = new Date(returnDate);
const daysOverdue = Math.floor((returned - due) / (1000 * 60 * 60 * 24));
if (daysOverdue > 0) {
return daysOverdue * 10; // 10 baht per day
}
return 0;
};
const BorrowingController = {
async findById(req, res) {
try {
const { borrowId } = req.params;
const record = await Borrowing.findById(borrowId);
if (!record) {
return res.status(404).json({ error: "Borrowing record not found" });
}
res.json(record);
} catch (error) {
res.status(500).json({ error: error.message });
}
},
async getAll(req, res) {
try {
const records = await Borrowing.getAll();
res.json(records);
} catch (error) {
res.status(500).json({ error: error.message });
}
},
async getBorrowed(req, res) {
try {
const records = await Borrowing.getBorrowed();
res.json(records);
} catch (error) {
res.status(500).json({ error: error.message });
}
},
async getOverdue(req, res) {
try {
const records = await Borrowing.getOverdue();
res.json(records);
} catch (error) {
res.status(500).json({ error: error.message });
}
},
async getMemberBorrows(req, res) {
try {
const { memberId } = req.params;
const records = await Borrowing.getByMember(memberId);
res.json(records);
} catch (error) {
res.status(500).json({ error: error.message });
}
},
async borrow(req, res) {
try {
const { memberId, bookId, borrowDate, dueDate } = req.body;
if (!memberId || !bookId || !borrowDate || !dueDate) {
return res.status(400).json({
error: "Member ID, book ID, borrow date, and due date are required",
});
}
// Check if member exists and is active
const member = await Member.findById(memberId);
if (!member) {
return res.status(404).json({ error: "Member not found" });
}
if (member.status !== "active") {
return res.status(400).json({ error: "Member is not active" });
}
// Check member borrowing limit
const borrowCount = await Member.getBorrowingCount(memberId);
if (borrowCount >= member.max_books) {
return res.status(400).json({
error: `Member has reached maximum borrowing limit (${member.max_books})`,
});
}
// Check if book exists and is available
const book = await Book.findById(bookId);
if (!book) {
return res.status(404).json({ error: "Book not found" });
}
if (book.available_copies <= 0) {
return res.status(400).json({ error: "Book is not available" });
}
// Check if book is already borrowed by this member
const currentBorrows = await Borrowing.getMemberCurrentBorrows(memberId);
if (currentBorrows.some((b) => b.book_id === bookId)) {
return res
.status(400)
.json({ error: "Member already borrowed this book" });
}
// Create borrow record
const result = await Borrowing.create(
memberId,
bookId,
borrowDate,
dueDate,
);
// Update available copies
await Book.updateAvailableCopies(bookId, book.available_copies - 1);
res.status(201).json({
success: true,
borrow_id: result.lastID,
});
} catch (error) {
res.status(500).json({ error: error.message });
}
},
async returnBook(req, res) {
try {
const { borrowId } = req.params;
const { returnDate } = req.body;
if (!returnDate) {
return res.status(400).json({ error: "Return date is required" });
}
const borrow = await Borrowing.findById(borrowId);
if (!borrow) {
return res.status(404).json({ error: "Borrowing record not found" });
}
if (borrow.status === "returned") {
return res.status(400).json({ error: "Book already returned" });
}
// Calculate fine
const fineAmount = calculateFine(borrow.due_date, returnDate);
// Update borrowing record
await Borrowing.returnBook(borrowId, returnDate, fineAmount);
// Update available copies
const book = await Book.findById(borrow.book_id);
if (book) {
await Book.updateAvailableCopies(
borrow.book_id,
book.available_copies + 1,
);
}
res.json({
success: true,
fineAmount: fineAmount,
});
} catch (error) {
res.status(500).json({ error: error.message });
}
},
async extendDueDate(req, res) {
try {
const { borrowId } = req.params;
const { newDueDate } = req.body;
if (!newDueDate) {
return res.status(400).json({ error: "New due date is required" });
}
const borrow = await Borrowing.findById(borrowId);
if (!borrow) {
return res.status(404).json({ error: "Borrowing record not found" });
}
if (borrow.status === "returned") {
return res.status(400).json({ error: "Cannot extend a returned book" });
}
// Update due date (simple update without status change)
const { db } = require("../database");
const { run } = require("../models/query");
await run("UPDATE borrowing SET due_date = ? WHERE borrow_id = ?", [
newDueDate,
borrowId,
]);
res.json({ success: true });
} catch (error) {
res.status(500).json({ error: error.message });
}
},
};
module.exports = BorrowingController;
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