import json
from datetime import datetime
from typing import Optional

from lnbits.db import Database
from lnbits.helpers import urlsafe_short_hash

from .models import (
    Account,
    AccountType,
    AssertionStatus,
    BalanceAssertion,
    CastleSettings,
    CreateAccount,
    CreateBalanceAssertion,
    CreateEntryLine,
    CreateJournalEntry,
    EntryLine,
    JournalEntry,
    StoredUserWalletSettings,
    UserBalance,
    UserCastleSettings,
    UserWalletSettings,
)

# Import core accounting logic
from .core.balance import BalanceCalculator, AccountType as CoreAccountType
from .core.inventory import CastleInventory, CastlePosition
from .core.validation import (
    ValidationError,
    validate_journal_entry,
    validate_balance,
    validate_receivable_entry,
    validate_expense_entry,
    validate_payment_entry,
)

db = Database("ext_castle")


# ===== ACCOUNT OPERATIONS =====


async def create_account(data: CreateAccount) -> Account:
    account_id = urlsafe_short_hash()
    account = Account(
        id=account_id,
        name=data.name,
        account_type=data.account_type,
        description=data.description,
        user_id=data.user_id,
        created_at=datetime.now(),
    )
    await db.insert("accounts", account)
    return account


async def get_account(account_id: str) -> Optional[Account]:
    return await db.fetchone(
        "SELECT * FROM accounts WHERE id = :id",
        {"id": account_id},
        Account,
    )


async def get_account_by_name(name: str) -> Optional[Account]:
    """Get account by name (hierarchical format)"""
    return await db.fetchone(
        "SELECT * FROM accounts WHERE name = :name",
        {"name": name},
        Account,
    )


async def get_all_accounts() -> list[Account]:
    return await db.fetchall(
        "SELECT * FROM accounts ORDER BY account_type, name",
        model=Account,
    )


async def get_accounts_by_type(account_type: AccountType) -> list[Account]:
    return await db.fetchall(
        "SELECT * FROM accounts WHERE account_type = :type ORDER BY name",
        {"type": account_type.value},
        Account,
    )


async def get_or_create_user_account(
    user_id: str, account_type: AccountType, base_name: str
) -> Account:
    """
    Get or create a user-specific account with hierarchical naming.

    Examples:
        get_or_create_user_account("af983632", AccountType.ASSET, "Accounts Receivable")
        → "Assets:Receivable:User-af983632"

        get_or_create_user_account("af983632", AccountType.LIABILITY, "Accounts Payable")
        → "Liabilities:Payable:User-af983632"
    """
    from .account_utils import format_hierarchical_account_name

    # Generate hierarchical account name
    account_name = format_hierarchical_account_name(account_type, base_name, user_id)

    # Try to find existing account with this hierarchical name
    account = await db.fetchone(
        """
        SELECT * FROM accounts
        WHERE user_id = :user_id AND account_type = :type AND name = :name
        """,
        {"user_id": user_id, "type": account_type.value, "name": account_name},
        Account,
    )

    if not account:
        # Create new account with hierarchical name
        account = await create_account(
            CreateAccount(
                name=account_name,
                account_type=account_type,
                description=f"User-specific {account_type.value} account",
                user_id=user_id,
            )
        )

    return account


# ===== JOURNAL ENTRY OPERATIONS =====


async def create_journal_entry(
    data: CreateJournalEntry, created_by: str
) -> JournalEntry:
    entry_id = urlsafe_short_hash()

    # Validate that debits equal credits
    total_debits = sum(line.debit for line in data.lines)
    total_credits = sum(line.credit for line in data.lines)

    if total_debits != total_credits:
        raise ValueError(
            f"Journal entry must balance: debits={total_debits}, credits={total_credits}"
        )

    entry_date = data.entry_date or datetime.now()

    journal_entry = JournalEntry(
        id=entry_id,
        description=data.description,
        entry_date=entry_date,
        created_by=created_by,
        created_at=datetime.now(),
        reference=data.reference,
        lines=[],
        flag=data.flag,
        meta=data.meta,
    )

    # Insert journal entry without the lines field (lines are stored in entry_lines table)
    await db.execute(
        """
        INSERT INTO journal_entries (id, description, entry_date, created_by, created_at, reference, flag, meta)
        VALUES (:id, :description, :entry_date, :created_by, :created_at, :reference, :flag, :meta)
        """,
        {
            "id": journal_entry.id,
            "description": journal_entry.description,
            "entry_date": journal_entry.entry_date,
            "created_by": journal_entry.created_by,
            "created_at": journal_entry.created_at,
            "reference": journal_entry.reference,
            "flag": journal_entry.flag.value,
            "meta": json.dumps(journal_entry.meta),
        },
    )

    # Create entry lines
    lines = []
    for line_data in data.lines:
        line_id = urlsafe_short_hash()
        line = EntryLine(
            id=line_id,
            journal_entry_id=entry_id,
            account_id=line_data.account_id,
            debit=line_data.debit,
            credit=line_data.credit,
            description=line_data.description,
            metadata=line_data.metadata,
        )
        # Insert with metadata as JSON string
        await db.execute(
            """
            INSERT INTO entry_lines (id, journal_entry_id, account_id, debit, credit, description, metadata)
            VALUES (:id, :journal_entry_id, :account_id, :debit, :credit, :description, :metadata)
            """,
            {
                "id": line.id,
                "journal_entry_id": line.journal_entry_id,
                "account_id": line.account_id,
                "debit": line.debit,
                "credit": line.credit,
                "description": line.description,
                "metadata": json.dumps(line.metadata),
            },
        )
        lines.append(line)

    journal_entry.lines = lines
    return journal_entry


async def get_journal_entry(entry_id: str) -> Optional[JournalEntry]:
    entry = await db.fetchone(
        "SELECT * FROM journal_entries WHERE id = :id",
        {"id": entry_id},
        JournalEntry,
    )

    if entry:
        entry.lines = await get_entry_lines(entry_id)

    return entry


async def get_journal_entry_by_reference(reference: str) -> Optional[JournalEntry]:
    """Get a journal entry by its reference field (e.g., payment_hash)"""
    entry = await db.fetchone(
        "SELECT * FROM journal_entries WHERE reference = :reference",
        {"reference": reference},
        JournalEntry,
    )

    if entry:
        entry.lines = await get_entry_lines(entry.id)

    return entry


async def get_entry_lines(journal_entry_id: str) -> list[EntryLine]:
    rows = await db.fetchall(
        "SELECT * FROM entry_lines WHERE journal_entry_id = :id",
        {"id": journal_entry_id},
    )

    lines = []
    for row in rows:
        # Parse metadata from JSON string
        metadata = json.loads(row.metadata) if row.metadata else {}
        line = EntryLine(
            id=row.id,
            journal_entry_id=row.journal_entry_id,
            account_id=row.account_id,
            debit=row.debit,
            credit=row.credit,
            description=row.description,
            metadata=metadata,
        )
        lines.append(line)

    return lines


async def get_all_journal_entries(limit: int = 100) -> list[JournalEntry]:
    entries_data = await db.fetchall(
        """
        SELECT * FROM journal_entries
        ORDER BY entry_date DESC, created_at DESC
        LIMIT :limit
        """,
        {"limit": limit},
    )

    entries = []
    for entry_data in entries_data:
        # Parse flag and meta from database
        from .models import JournalEntryFlag
        flag = JournalEntryFlag(entry_data.get("flag", "*"))
        meta = json.loads(entry_data.get("meta", "{}")) if entry_data.get("meta") else {}

        entry = JournalEntry(
            id=entry_data["id"],
            description=entry_data["description"],
            entry_date=entry_data["entry_date"],
            created_by=entry_data["created_by"],
            created_at=entry_data["created_at"],
            reference=entry_data["reference"],
            flag=flag,
            meta=meta,
            lines=[],
        )
        entry.lines = await get_entry_lines(entry.id)
        entries.append(entry)

    return entries


async def get_journal_entries_by_user(
    user_id: str, limit: int = 100
) -> list[JournalEntry]:
    """Get journal entries that affect the user's accounts"""
    # Get all user-specific accounts
    user_accounts = await db.fetchall(
        "SELECT id FROM accounts WHERE user_id = :user_id",
        {"user_id": user_id},
    )

    if not user_accounts:
        return []

    account_ids = [acc["id"] for acc in user_accounts]

    # Get all journal entries that have lines affecting these accounts
    # Build the IN clause with named parameters
    placeholders = ','.join([f":account_{i}" for i in range(len(account_ids))])
    params = {f"account_{i}": acc_id for i, acc_id in enumerate(account_ids)}
    params["limit"] = limit

    entries_data = await db.fetchall(
        f"""
        SELECT DISTINCT je.*
        FROM journal_entries je
        JOIN entry_lines el ON je.id = el.journal_entry_id
        WHERE el.account_id IN ({placeholders})
        ORDER BY je.entry_date DESC, je.created_at DESC
        LIMIT :limit
        """,
        params,
    )

    entries = []
    for entry_data in entries_data:
        # Parse flag and meta from database
        from .models import JournalEntryFlag
        flag = JournalEntryFlag(entry_data.get("flag", "*"))
        meta = json.loads(entry_data.get("meta", "{}")) if entry_data.get("meta") else {}

        entry = JournalEntry(
            id=entry_data["id"],
            description=entry_data["description"],
            entry_date=entry_data["entry_date"],
            created_by=entry_data["created_by"],
            created_at=entry_data["created_at"],
            reference=entry_data["reference"],
            flag=flag,
            meta=meta,
            lines=[],
        )
        entry.lines = await get_entry_lines(entry.id)
        entries.append(entry)

    return entries


# ===== BALANCE AND REPORTING =====


async def get_account_balance(account_id: str) -> int:
    """Calculate account balance (debits - credits for assets/expenses, credits - debits for liabilities/equity/revenue)
    Only includes entries that are cleared (flag='*'), excludes pending/flagged/voided entries."""
    result = await db.fetchone(
        """
        SELECT
            COALESCE(SUM(el.debit), 0) as total_debit,
            COALESCE(SUM(el.credit), 0) as total_credit
        FROM entry_lines el
        JOIN journal_entries je ON el.journal_entry_id = je.id
        WHERE el.account_id = :id
        AND je.flag = '*'
        """,
        {"id": account_id},
    )

    if not result:
        return 0

    account = await get_account(account_id)
    if not account:
        return 0

    total_debit = result["total_debit"]
    total_credit = result["total_credit"]

    # Use core BalanceCalculator for consistent logic
    core_account_type = CoreAccountType(account.account_type.value)
    return BalanceCalculator.calculate_account_balance(
        total_debit, total_credit, core_account_type
    )


async def get_user_balance(user_id: str) -> UserBalance:
    """Get user's balance with the Castle (positive = castle owes user, negative = user owes castle)"""
    # Get all user-specific accounts
    user_accounts = await db.fetchall(
        "SELECT * FROM accounts WHERE user_id = :user_id",
        {"user_id": user_id},
        Account,
    )

    # Calculate balances for each account
    account_balances = {}
    account_inventories = {}

    for account in user_accounts:
        # Get satoshi balance
        balance = await get_account_balance(account.id)
        account_balances[account.id] = balance

        # Get all entry lines for this account to build inventory
        # Only include cleared entries (exclude pending/flagged/voided)
        entry_lines = await db.fetchall(
            """
            SELECT el.*
            FROM entry_lines el
            JOIN journal_entries je ON el.journal_entry_id = je.id
            WHERE el.account_id = :account_id
            AND je.flag = '*'
            """,
            {"account_id": account.id},
        )

        # Use BalanceCalculator to build inventory from entry lines
        core_account_type = CoreAccountType(account.account_type.value)
        inventory = BalanceCalculator.build_inventory_from_entry_lines(
            [dict(line) for line in entry_lines],
            core_account_type
        )
        account_inventories[account.id] = inventory

    # Use BalanceCalculator to calculate total user balance
    accounts_list = [
        {"id": acc.id, "account_type": acc.account_type.value}
        for acc in user_accounts
    ]
    balance_result = BalanceCalculator.calculate_user_balance(
        accounts_list,
        account_balances,
        account_inventories
    )

    return UserBalance(
        user_id=user_id,
        balance=balance_result["balance"],
        accounts=user_accounts,
        fiat_balances=balance_result["fiat_balances"],
    )


async def get_all_user_balances() -> list[UserBalance]:
    """Get balances for all users (used by castle to see who they owe)"""
    # Get all user-specific accounts
    all_accounts = await db.fetchall(
        "SELECT * FROM accounts WHERE user_id IS NOT NULL",
        {},
        Account,
    )

    # Get unique user IDs
    user_ids = set(account.user_id for account in all_accounts if account.user_id)

    # Calculate balance for each user using the refactored function
    user_balances = []
    for user_id in user_ids:
        balance = await get_user_balance(user_id)

        # Include users with non-zero balance or fiat balances
        if balance.balance != 0 or balance.fiat_balances:
            user_balances.append(balance)

    return user_balances


async def get_account_transactions(
    account_id: str, limit: int = 100
) -> list[tuple[JournalEntry, EntryLine]]:
    """Get all transactions affecting a specific account"""
    rows = await db.fetchall(
        """
        SELECT * FROM entry_lines
        WHERE account_id = :id
        ORDER BY id DESC
        LIMIT :limit
        """,
        {"id": account_id, "limit": limit},
    )

    transactions = []
    for row in rows:
        # Parse metadata from JSON string
        metadata = json.loads(row.metadata) if row.metadata else {}
        line = EntryLine(
            id=row.id,
            journal_entry_id=row.journal_entry_id,
            account_id=row.account_id,
            debit=row.debit,
            credit=row.credit,
            description=row.description,
            metadata=metadata,
        )
        entry = await get_journal_entry(line.journal_entry_id)
        if entry:
            transactions.append((entry, line))

    return transactions


# ===== SETTINGS =====


async def create_castle_settings(
    user_id: str, data: CastleSettings
) -> CastleSettings:
    settings = UserCastleSettings(**data.dict(), id=user_id)
    await db.insert("extension_settings", settings)
    return settings


async def get_castle_settings(user_id: str) -> Optional[CastleSettings]:
    return await db.fetchone(
        """
        SELECT * FROM extension_settings
        WHERE id = :user_id
        """,
        {"user_id": user_id},
        CastleSettings,
    )


async def update_castle_settings(
    user_id: str, data: CastleSettings
) -> CastleSettings:
    settings = UserCastleSettings(**data.dict(), id=user_id)
    await db.update("extension_settings", settings)
    return settings


# ===== USER WALLET SETTINGS =====


async def create_user_wallet_settings(
    user_id: str, data: UserWalletSettings
) -> UserWalletSettings:
    settings = StoredUserWalletSettings(**data.dict(), id=user_id)
    await db.insert("user_wallet_settings", settings)
    return settings


async def get_user_wallet_settings(user_id: str) -> Optional[UserWalletSettings]:
    return await db.fetchone(
        """
        SELECT * FROM user_wallet_settings
        WHERE id = :user_id
        """,
        {"user_id": user_id},
        UserWalletSettings,
    )


async def update_user_wallet_settings(
    user_id: str, data: UserWalletSettings
) -> UserWalletSettings:
    settings = StoredUserWalletSettings(**data.dict(), id=user_id)
    await db.update("user_wallet_settings", settings)
    return settings


async def get_all_user_wallet_settings() -> list[StoredUserWalletSettings]:
    """Get all user wallet settings"""
    return await db.fetchall(
        "SELECT * FROM user_wallet_settings ORDER BY id",
        {},
        StoredUserWalletSettings,
    )


# ===== MANUAL PAYMENT REQUESTS =====


async def create_manual_payment_request(
    user_id: str, amount: int, description: str
) -> "ManualPaymentRequest":
    """Create a new manual payment request"""
    from .models import ManualPaymentRequest

    request_id = urlsafe_short_hash()
    request = ManualPaymentRequest(
        id=request_id,
        user_id=user_id,
        amount=amount,
        description=description,
        status="pending",
        created_at=datetime.now(),
    )

    await db.execute(
        """
        INSERT INTO manual_payment_requests (id, user_id, amount, description, status, created_at)
        VALUES (:id, :user_id, :amount, :description, :status, :created_at)
        """,
        {
            "id": request.id,
            "user_id": request.user_id,
            "amount": request.amount,
            "description": request.description,
            "status": request.status,
            "created_at": request.created_at,
        },
    )

    return request


async def get_manual_payment_request(request_id: str) -> Optional["ManualPaymentRequest"]:
    """Get a manual payment request by ID"""
    from .models import ManualPaymentRequest

    return await db.fetchone(
        "SELECT * FROM manual_payment_requests WHERE id = :id",
        {"id": request_id},
        ManualPaymentRequest,
    )


async def get_user_manual_payment_requests(
    user_id: str, limit: int = 100
) -> list["ManualPaymentRequest"]:
    """Get all manual payment requests for a specific user"""
    from .models import ManualPaymentRequest

    return await db.fetchall(
        """
        SELECT * FROM manual_payment_requests
        WHERE user_id = :user_id
        ORDER BY created_at DESC
        LIMIT :limit
        """,
        {"user_id": user_id, "limit": limit},
        ManualPaymentRequest,
    )


async def get_all_manual_payment_requests(
    status: Optional[str] = None, limit: int = 100
) -> list["ManualPaymentRequest"]:
    """Get all manual payment requests, optionally filtered by status"""
    from .models import ManualPaymentRequest

    if status:
        return await db.fetchall(
            """
            SELECT * FROM manual_payment_requests
            WHERE status = :status
            ORDER BY created_at DESC
            LIMIT :limit
            """,
            {"status": status, "limit": limit},
            ManualPaymentRequest,
        )
    else:
        return await db.fetchall(
            """
            SELECT * FROM manual_payment_requests
            ORDER BY created_at DESC
            LIMIT :limit
            """,
            {"limit": limit},
            ManualPaymentRequest,
        )


async def approve_manual_payment_request(
    request_id: str, reviewed_by: str, journal_entry_id: str
) -> Optional["ManualPaymentRequest"]:
    """Approve a manual payment request"""
    from .models import ManualPaymentRequest

    await db.execute(
        """
        UPDATE manual_payment_requests
        SET status = 'approved', reviewed_at = :reviewed_at, reviewed_by = :reviewed_by, journal_entry_id = :journal_entry_id
        WHERE id = :id
        """,
        {
            "id": request_id,
            "reviewed_at": datetime.now(),
            "reviewed_by": reviewed_by,
            "journal_entry_id": journal_entry_id,
        },
    )

    return await get_manual_payment_request(request_id)


async def reject_manual_payment_request(
    request_id: str, reviewed_by: str
) -> Optional["ManualPaymentRequest"]:
    """Reject a manual payment request"""
    from .models import ManualPaymentRequest

    await db.execute(
        """
        UPDATE manual_payment_requests
        SET status = 'rejected', reviewed_at = :reviewed_at, reviewed_by = :reviewed_by
        WHERE id = :id
        """,
        {
            "id": request_id,
            "reviewed_at": datetime.now(),
            "reviewed_by": reviewed_by,
        },
    )

    return await get_manual_payment_request(request_id)


# ===== BALANCE ASSERTION OPERATIONS =====


async def create_balance_assertion(
    data: CreateBalanceAssertion, created_by: str
) -> BalanceAssertion:
    """Create a new balance assertion"""
    from decimal import Decimal

    assertion_id = urlsafe_short_hash()
    assertion_date = data.date if data.date else datetime.now()

    assertion = BalanceAssertion(
        id=assertion_id,
        date=assertion_date,
        account_id=data.account_id,
        expected_balance_sats=data.expected_balance_sats,
        expected_balance_fiat=data.expected_balance_fiat,
        fiat_currency=data.fiat_currency,
        tolerance_sats=data.tolerance_sats,
        tolerance_fiat=data.tolerance_fiat,
        status=AssertionStatus.PENDING,
        created_by=created_by,
        created_at=datetime.now(),
    )

    # Manually insert with Decimal fields converted to strings
    await db.execute(
        """
        INSERT INTO balance_assertions (
            id, date, account_id, expected_balance_sats, expected_balance_fiat,
            fiat_currency, tolerance_sats, tolerance_fiat, status, created_by, created_at
        ) VALUES (
            :id, :date, :account_id, :expected_balance_sats, :expected_balance_fiat,
            :fiat_currency, :tolerance_sats, :tolerance_fiat, :status, :created_by, :created_at
        )
        """,
        {
            "id": assertion.id,
            "date": assertion.date,
            "account_id": assertion.account_id,
            "expected_balance_sats": assertion.expected_balance_sats,
            "expected_balance_fiat": str(assertion.expected_balance_fiat) if assertion.expected_balance_fiat else None,
            "fiat_currency": assertion.fiat_currency,
            "tolerance_sats": assertion.tolerance_sats,
            "tolerance_fiat": str(assertion.tolerance_fiat),
            "status": assertion.status.value,
            "created_by": assertion.created_by,
            "created_at": assertion.created_at,
        },
    )
    return assertion


async def get_balance_assertion(assertion_id: str) -> Optional[BalanceAssertion]:
    """Get a balance assertion by ID"""
    from decimal import Decimal

    row = await db.fetchone(
        "SELECT * FROM balance_assertions WHERE id = :id",
        {"id": assertion_id},
    )

    if not row:
        return None

    # Parse Decimal fields from TEXT storage
    return BalanceAssertion(
        id=row["id"],
        date=row["date"],
        account_id=row["account_id"],
        expected_balance_sats=row["expected_balance_sats"],
        expected_balance_fiat=Decimal(row["expected_balance_fiat"]) if row["expected_balance_fiat"] else None,
        fiat_currency=row["fiat_currency"],
        tolerance_sats=row["tolerance_sats"],
        tolerance_fiat=Decimal(row["tolerance_fiat"]) if row["tolerance_fiat"] else Decimal("0"),
        checked_balance_sats=row["checked_balance_sats"],
        checked_balance_fiat=Decimal(row["checked_balance_fiat"]) if row["checked_balance_fiat"] else None,
        difference_sats=row["difference_sats"],
        difference_fiat=Decimal(row["difference_fiat"]) if row["difference_fiat"] else None,
        status=AssertionStatus(row["status"]),
        created_by=row["created_by"],
        created_at=row["created_at"],
        checked_at=row["checked_at"],
    )


async def get_balance_assertions(
    account_id: Optional[str] = None,
    status: Optional[AssertionStatus] = None,
    limit: int = 100,
) -> list[BalanceAssertion]:
    """Get balance assertions with optional filters"""
    from decimal import Decimal

    if account_id and status:
        rows = await db.fetchall(
            """
            SELECT * FROM balance_assertions
            WHERE account_id = :account_id AND status = :status
            ORDER BY date DESC
            LIMIT :limit
            """,
            {"account_id": account_id, "status": status.value, "limit": limit},
        )
    elif account_id:
        rows = await db.fetchall(
            """
            SELECT * FROM balance_assertions
            WHERE account_id = :account_id
            ORDER BY date DESC
            LIMIT :limit
            """,
            {"account_id": account_id, "limit": limit},
        )
    elif status:
        rows = await db.fetchall(
            """
            SELECT * FROM balance_assertions
            WHERE status = :status
            ORDER BY date DESC
            LIMIT :limit
            """,
            {"status": status.value, "limit": limit},
        )
    else:
        rows = await db.fetchall(
            """
            SELECT * FROM balance_assertions
            ORDER BY date DESC
            LIMIT :limit
            """,
            {"limit": limit},
        )

    assertions = []
    for row in rows:
        assertions.append(
            BalanceAssertion(
                id=row["id"],
                date=row["date"],
                account_id=row["account_id"],
                expected_balance_sats=row["expected_balance_sats"],
                expected_balance_fiat=Decimal(row["expected_balance_fiat"]) if row["expected_balance_fiat"] else None,
                fiat_currency=row["fiat_currency"],
                tolerance_sats=row["tolerance_sats"],
                tolerance_fiat=Decimal(row["tolerance_fiat"]) if row["tolerance_fiat"] else Decimal("0"),
                checked_balance_sats=row["checked_balance_sats"],
                checked_balance_fiat=Decimal(row["checked_balance_fiat"]) if row["checked_balance_fiat"] else None,
                difference_sats=row["difference_sats"],
                difference_fiat=Decimal(row["difference_fiat"]) if row["difference_fiat"] else None,
                status=AssertionStatus(row["status"]),
                created_by=row["created_by"],
                created_at=row["created_at"],
                checked_at=row["checked_at"],
            )
        )

    return assertions


async def check_balance_assertion(assertion_id: str) -> BalanceAssertion:
    """
    Check a balance assertion by comparing expected vs actual balance.
    Updates the assertion with the check results.
    """
    from decimal import Decimal

    assertion = await get_balance_assertion(assertion_id)
    if not assertion:
        raise ValueError(f"Balance assertion {assertion_id} not found")

    # Get actual account balance
    account = await get_account(assertion.account_id)
    if not account:
        raise ValueError(f"Account {assertion.account_id} not found")

    # Calculate balance at the assertion date
    actual_balance = await get_account_balance(assertion.account_id)

    # Get fiat balance if needed
    actual_fiat_balance = None
    if assertion.fiat_currency and account.user_id:
        user_balance = await get_user_balance(account.user_id)
        actual_fiat_balance = user_balance.fiat_balances.get(assertion.fiat_currency, Decimal("0"))

    # Check sats balance
    difference_sats = actual_balance - assertion.expected_balance_sats
    sats_match = abs(difference_sats) <= assertion.tolerance_sats

    # Check fiat balance if applicable
    fiat_match = True
    difference_fiat = None
    if assertion.expected_balance_fiat is not None and actual_fiat_balance is not None:
        difference_fiat = actual_fiat_balance - assertion.expected_balance_fiat
        fiat_match = abs(difference_fiat) <= assertion.tolerance_fiat

    # Determine overall status
    status = AssertionStatus.PASSED if (sats_match and fiat_match) else AssertionStatus.FAILED

    # Update assertion with check results
    await db.execute(
        """
        UPDATE balance_assertions
        SET checked_balance_sats = :checked_sats,
            checked_balance_fiat = :checked_fiat,
            difference_sats = :diff_sats,
            difference_fiat = :diff_fiat,
            status = :status,
            checked_at = :checked_at
        WHERE id = :id
        """,
        {
            "id": assertion_id,
            "checked_sats": actual_balance,
            "checked_fiat": str(actual_fiat_balance) if actual_fiat_balance is not None else None,
            "diff_sats": difference_sats,
            "diff_fiat": str(difference_fiat) if difference_fiat is not None else None,
            "status": status.value,
            "checked_at": datetime.now(),
        },
    )

    # Return updated assertion
    return await get_balance_assertion(assertion_id)


async def delete_balance_assertion(assertion_id: str) -> None:
    """Delete a balance assertion"""
    await db.execute(
        "DELETE FROM balance_assertions WHERE id = :id",
        {"id": assertion_id},
    )