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/* AP Payment Processing Event Log Extraction */
/* Parameter Requirements: :p_start_date, :p_end_date */

/* 1. Invoice Created */
SELECT
    aia.INVOICE_NUM AS InvoiceNumber,
    'Invoice Created' AS ActivityName,
    aia.CREATION_DATE AS EventDateTime,
    'Oracle Fusion' AS SourceSystem,
    SYSDATE AS LastDataUpdate,
    poz.PARTY_NAME AS SupplierName,
    aia.INVOICE_AMOUNT AS InvoiceAmount,
    aia.INVOICE_DATE AS InvoiceDate,
    hou.NAME AS BusinessUnit,
    apt.NAME AS PaymentTerms,
    TRUNC(aia.TERMS_DATE + NVL(apt.DUE_DAYS, 0)) AS DueDate,
    NULL AS PaymentDate,
    NULL AS PurchaseOrderNumber,
    aia.CREATED_BY AS CreatedByUserName,
    aia.INVOICE_TYPE_LOOKUP_CODE AS InvoiceType
FROM AP_INVOICES_ALL aia
JOIN POZ_SUPPLIERS poz ON aia.VENDOR_ID = poz.VENDOR_ID
JOIN HR_ORGANIZATION_UNITS hou ON aia.ORG_ID = hou.ORGANIZATION_ID
LEFT JOIN AP_TERMS_TL apt ON aia.TERMS_ID = apt.TERM_ID AND apt.LANGUAGE = USERENV('LANG')
WHERE aia.INVOICE_DATE BETWEEN :p_start_date AND :p_end_date

UNION ALL

/* 2. Invoice Line Matched (PO Match) */
SELECT
    aia.INVOICE_NUM,
    'Invoice Line Matched',
    aila.CREATION_DATE,
    'Oracle Fusion',
    SYSDATE,
    poz.PARTY_NAME,
    aia.INVOICE_AMOUNT,
    aia.INVOICE_DATE,
    hou.NAME,
    apt.NAME,
    TRUNC(aia.TERMS_DATE + NVL(apt.DUE_DAYS, 0)),
    NULL,
    poh.SEGMENT1,
    aila.CREATED_BY,
    aia.INVOICE_TYPE_LOOKUP_CODE
FROM AP_INVOICES_ALL aia
JOIN AP_INVOICE_LINES_ALL aila ON aia.INVOICE_ID = aila.INVOICE_ID
JOIN PO_HEADERS_ALL poh ON aila.PO_HEADER_ID = poh.PO_HEADER_ID
JOIN POZ_SUPPLIERS poz ON aia.VENDOR_ID = poz.VENDOR_ID
JOIN HR_ORGANIZATION_UNITS hou ON aia.ORG_ID = hou.ORGANIZATION_ID
LEFT JOIN AP_TERMS_TL apt ON aia.TERMS_ID = apt.TERM_ID AND apt.LANGUAGE = USERENV('LANG')
WHERE aila.PO_HEADER_ID IS NOT NULL
AND aia.INVOICE_DATE BETWEEN :p_start_date AND :p_end_date

UNION ALL

/* 3. Invoice Validated (Proxy via Validation Request or Distribution Generation) */
SELECT
    aia.INVOICE_NUM,
    'Invoice Validated',
    NVL(aia.VALIDATION_REQUEST_DATE, aia.STATUS_EFFECTIVE_DATE),
    'Oracle Fusion',
    SYSDATE,
    poz.PARTY_NAME,
    aia.INVOICE_AMOUNT,
    aia.INVOICE_DATE,
    hou.NAME,
    apt.NAME,
    TRUNC(aia.TERMS_DATE + NVL(apt.DUE_DAYS, 0)),
    NULL,
    NULL,
    aia.LAST_UPDATED_BY,
    aia.INVOICE_TYPE_LOOKUP_CODE
FROM AP_INVOICES_ALL aia
JOIN POZ_SUPPLIERS poz ON aia.VENDOR_ID = poz.VENDOR_ID
JOIN HR_ORGANIZATION_UNITS hou ON aia.ORG_ID = hou.ORGANIZATION_ID
LEFT JOIN AP_TERMS_TL apt ON aia.TERMS_ID = apt.TERM_ID AND apt.LANGUAGE = USERENV('LANG')
WHERE (aia.VALIDATION_REQUEST_DATE IS NOT NULL OR aia.STATUS_EFFECTIVE_DATE IS NOT NULL)
AND aia.INVOICE_DATE BETWEEN :p_start_date AND :p_end_date

UNION ALL

/* 4. Invoice Hold Applied */
SELECT
    aia.INVOICE_NUM,
    'Invoice Hold Applied',
    aha.HOLD_DATE,
    'Oracle Fusion',
    SYSDATE,
    poz.PARTY_NAME,
    aia.INVOICE_AMOUNT,
    aia.INVOICE_DATE,
    hou.NAME,
    apt.NAME,
    TRUNC(aia.TERMS_DATE + NVL(apt.DUE_DAYS, 0)),
    NULL,
    NULL,
    aha.CREATED_BY,
    aia.INVOICE_TYPE_LOOKUP_CODE
FROM AP_INVOICES_ALL aia
JOIN AP_HOLDS_ALL aha ON aia.INVOICE_ID = aha.INVOICE_ID
JOIN POZ_SUPPLIERS poz ON aia.VENDOR_ID = poz.VENDOR_ID
JOIN HR_ORGANIZATION_UNITS hou ON aia.ORG_ID = hou.ORGANIZATION_ID
LEFT JOIN AP_TERMS_TL apt ON aia.TERMS_ID = apt.TERM_ID AND apt.LANGUAGE = USERENV('LANG')
WHERE aia.INVOICE_DATE BETWEEN :p_start_date AND :p_end_date

UNION ALL

/* 5. Invoice Hold Released */
SELECT
    aia.INVOICE_NUM,
    'Invoice Hold Released',
    aha.LAST_UPDATE_DATE,
    'Oracle Fusion',
    SYSDATE,
    poz.PARTY_NAME,
    aia.INVOICE_AMOUNT,
    aia.INVOICE_DATE,
    hou.NAME,
    apt.NAME,
    TRUNC(aia.TERMS_DATE + NVL(apt.DUE_DAYS, 0)),
    NULL,
    NULL,
    aha.LAST_UPDATED_BY,
    aia.INVOICE_TYPE_LOOKUP_CODE
FROM AP_INVOICES_ALL aia
JOIN AP_HOLDS_ALL aha ON aia.INVOICE_ID = aha.INVOICE_ID
JOIN POZ_SUPPLIERS poz ON aia.VENDOR_ID = poz.VENDOR_ID
JOIN HR_ORGANIZATION_UNITS hou ON aia.ORG_ID = hou.ORGANIZATION_ID
LEFT JOIN AP_TERMS_TL apt ON aia.TERMS_ID = apt.TERM_ID AND apt.LANGUAGE = USERENV('LANG')
WHERE aha.RELEASE_LOOKUP_CODE IS NOT NULL
AND aia.INVOICE_DATE BETWEEN :p_start_date AND :p_end_date

UNION ALL

/* 6. Approval Initiated */
SELECT
    aia.INVOICE_NUM,
    'Approval Initiated',
    ap_hist.CREATION_DATE,
    'Oracle Fusion',
    SYSDATE,
    poz.PARTY_NAME,
    aia.INVOICE_AMOUNT,
    aia.INVOICE_DATE,
    hou.NAME,
    apt.NAME,
    TRUNC(aia.TERMS_DATE + NVL(apt.DUE_DAYS, 0)),
    NULL,
    NULL,
    ap_hist.CREATED_BY,
    aia.INVOICE_TYPE_LOOKUP_CODE
FROM AP_INVOICES_ALL aia
JOIN AP_INV_APRVL_HIST_ALL ap_hist ON aia.INVOICE_ID = ap_hist.INVOICE_ID
JOIN POZ_SUPPLIERS poz ON aia.VENDOR_ID = poz.VENDOR_ID
JOIN HR_ORGANIZATION_UNITS hou ON aia.ORG_ID = hou.ORGANIZATION_ID
LEFT JOIN AP_TERMS_TL apt ON aia.TERMS_ID = apt.TERM_ID AND apt.LANGUAGE = USERENV('LANG')
WHERE ap_hist.RESPONSE = 'INITIATED'
AND aia.INVOICE_DATE BETWEEN :p_start_date AND :p_end_date

UNION ALL

/* 7. Invoice Approved */
SELECT
    aia.INVOICE_NUM,
    'Invoice Approved',
    ap_hist.RESPONSE_DATE,
    'Oracle Fusion',
    SYSDATE,
    poz.PARTY_NAME,
    aia.INVOICE_AMOUNT,
    aia.INVOICE_DATE,
    hou.NAME,
    apt.NAME,
    TRUNC(aia.TERMS_DATE + NVL(apt.DUE_DAYS, 0)),
    NULL,
    NULL,
    ap_hist.APPROVER_NAME,
    aia.INVOICE_TYPE_LOOKUP_CODE
FROM AP_INVOICES_ALL aia
JOIN AP_INV_APRVL_HIST_ALL ap_hist ON aia.INVOICE_ID = ap_hist.INVOICE_ID
JOIN POZ_SUPPLIERS poz ON aia.VENDOR_ID = poz.VENDOR_ID
JOIN HR_ORGANIZATION_UNITS hou ON aia.ORG_ID = hou.ORGANIZATION_ID
LEFT JOIN AP_TERMS_TL apt ON aia.TERMS_ID = apt.TERM_ID AND apt.LANGUAGE = USERENV('LANG')
WHERE ap_hist.RESPONSE = 'APPROVED'
AND aia.INVOICE_DATE BETWEEN :p_start_date AND :p_end_date

UNION ALL

/* 8. Invoice Accounted */
SELECT
    aia.INVOICE_NUM,
    'Invoice Accounted',
    MAX(aida.LAST_UPDATE_DATE),
    'Oracle Fusion',
    SYSDATE,
    poz.PARTY_NAME,
    aia.INVOICE_AMOUNT,
    aia.INVOICE_DATE,
    hou.NAME,
    apt.NAME,
    TRUNC(aia.TERMS_DATE + NVL(apt.DUE_DAYS, 0)),
    NULL,
    NULL,
    'System',
    aia.INVOICE_TYPE_LOOKUP_CODE
FROM AP_INVOICES_ALL aia
JOIN AP_INVOICE_DISTRIBUTIONS_ALL aida ON aia.INVOICE_ID = aida.INVOICE_ID
JOIN POZ_SUPPLIERS poz ON aia.VENDOR_ID = poz.VENDOR_ID
JOIN HR_ORGANIZATION_UNITS hou ON aia.ORG_ID = hou.ORGANIZATION_ID
LEFT JOIN AP_TERMS_TL apt ON aia.TERMS_ID = apt.TERM_ID AND apt.LANGUAGE = USERENV('LANG')
WHERE aida.ACCRUAL_POSTED_FLAG = 'Y'
AND aia.INVOICE_DATE BETWEEN :p_start_date AND :p_end_date
GROUP BY aia.INVOICE_NUM, poz.PARTY_NAME, aia.INVOICE_AMOUNT, aia.INVOICE_DATE, hou.NAME, apt.NAME, aia.TERMS_DATE, apt.DUE_DAYS, aia.INVOICE_TYPE_LOOKUP_CODE

UNION ALL

/* 9. Payment Selected (Proxy using Payment Link Creation) */
SELECT
    aia.INVOICE_NUM,
    'Payment Selected',
    aipa.CREATION_DATE,
    'Oracle Fusion',
    SYSDATE,
    poz.PARTY_NAME,
    aia.INVOICE_AMOUNT,
    aia.INVOICE_DATE,
    hou.NAME,
    apt.NAME,
    TRUNC(aia.TERMS_DATE + NVL(apt.DUE_DAYS, 0)),
    NULL,
    NULL,
    aipa.CREATED_BY,
    aia.INVOICE_TYPE_LOOKUP_CODE
FROM AP_INVOICES_ALL aia
JOIN AP_INVOICE_PAYMENTS_ALL aipa ON aia.INVOICE_ID = aipa.INVOICE_ID
JOIN POZ_SUPPLIERS poz ON aia.VENDOR_ID = poz.VENDOR_ID
JOIN HR_ORGANIZATION_UNITS hou ON aia.ORG_ID = hou.ORGANIZATION_ID
LEFT JOIN AP_TERMS_TL apt ON aia.TERMS_ID = apt.TERM_ID AND apt.LANGUAGE = USERENV('LANG')
WHERE aia.INVOICE_DATE BETWEEN :p_start_date AND :p_end_date

UNION ALL

/* 10. Payment Created */
SELECT
    aia.INVOICE_NUM,
    'Payment Created',
    aca.CHECK_DATE,
    'Oracle Fusion',
    SYSDATE,
    poz.PARTY_NAME,
    aia.INVOICE_AMOUNT,
    aia.INVOICE_DATE,
    hou.NAME,
    apt.NAME,
    TRUNC(aia.TERMS_DATE + NVL(apt.DUE_DAYS, 0)),
    aca.CHECK_DATE,
    NULL,
    aca.CREATED_BY,
    aia.INVOICE_TYPE_LOOKUP_CODE
FROM AP_INVOICES_ALL aia
JOIN AP_INVOICE_PAYMENTS_ALL aipa ON aia.INVOICE_ID = aipa.INVOICE_ID
JOIN AP_CHECKS_ALL aca ON aipa.CHECK_ID = aca.CHECK_ID
JOIN POZ_SUPPLIERS poz ON aia.VENDOR_ID = poz.VENDOR_ID
JOIN HR_ORGANIZATION_UNITS hou ON aia.ORG_ID = hou.ORGANIZATION_ID
LEFT JOIN AP_TERMS_TL apt ON aia.TERMS_ID = apt.TERM_ID AND apt.LANGUAGE = USERENV('LANG')
WHERE aia.INVOICE_DATE BETWEEN :p_start_date AND :p_end_date

UNION ALL

/* 11. Payment Cleared */
SELECT
    aia.INVOICE_NUM,
    'Payment Cleared',
    aca.CLEARED_DATE,
    'Oracle Fusion',
    SYSDATE,
    poz.PARTY_NAME,
    aia.INVOICE_AMOUNT,
    aia.INVOICE_DATE,
    hou.NAME,
    apt.NAME,
    TRUNC(aia.TERMS_DATE + NVL(apt.DUE_DAYS, 0)),
    aca.CLEARED_DATE,
    NULL,
    aca.LAST_UPDATED_BY,
    aia.INVOICE_TYPE_LOOKUP_CODE
FROM AP_INVOICES_ALL aia
JOIN AP_INVOICE_PAYMENTS_ALL aipa ON aia.INVOICE_ID = aipa.INVOICE_ID
JOIN AP_CHECKS_ALL aca ON aipa.CHECK_ID = aca.CHECK_ID
JOIN POZ_SUPPLIERS poz ON aia.VENDOR_ID = poz.VENDOR_ID
JOIN HR_ORGANIZATION_UNITS hou ON aia.ORG_ID = hou.ORGANIZATION_ID
LEFT JOIN AP_TERMS_TL apt ON aia.TERMS_ID = apt.TERM_ID AND apt.LANGUAGE = USERENV('LANG')
WHERE aca.CLEARED_DATE IS NOT NULL
AND aia.INVOICE_DATE BETWEEN :p_start_date AND :p_end_date

UNION ALL

/* 12. Invoice Cancelled */
SELECT
    aia.INVOICE_NUM,
    'Invoice Cancelled',
    aia.CANCELLED_DATE,
    'Oracle Fusion',
    SYSDATE,
    poz.PARTY_NAME,
    aia.INVOICE_AMOUNT,
    aia.INVOICE_DATE,
    hou.NAME,
    apt.NAME,
    TRUNC(aia.TERMS_DATE + NVL(apt.DUE_DAYS, 0)),
    NULL,
    NULL,
    aia.LAST_UPDATED_BY,
    aia.INVOICE_TYPE_LOOKUP_CODE
FROM AP_INVOICES_ALL aia
JOIN POZ_SUPPLIERS poz ON aia.VENDOR_ID = poz.VENDOR_ID
JOIN HR_ORGANIZATION_UNITS hou ON aia.ORG_ID = hou.ORGANIZATION_ID
LEFT JOIN AP_TERMS_TL apt ON aia.TERMS_ID = apt.TERM_ID AND apt.LANGUAGE = USERENV('LANG')
WHERE aia.CANCELLED_DATE IS NOT NULL
AND aia.INVOICE_DATE BETWEEN :p_start_date AND :p_end_date

import requests
import pandas as pd
import json
from datetime import datetime
import base64

class=class="hl-string">"hl-comment"># Configuration - UPDATE THESE VALUES
BASE_URL = class="hl-string">"https://fa-your-instance.fa.ocs.oraclecloud.com"
USERNAME = class="hl-string">"your_username"
PASSWORD = class="hl-string">"your_password"
START_DATE = class="hl-string">"2024-01-01"
OUTPUT_FILE = class="hl-string">"oracle_fusion_ap_event_log.csv"

class=class="hl-string">"hl-comment"># API Endpoints
INVOICES_ENDPOINT = class="hl-string">"/fscmRestApi/resources/11.13.18.05/invoices"

class=class="hl-string">"hl-comment"># Headers
auth_str = fclass="hl-string">"{USERNAME}:{PASSWORD}"
b64_auth = base64.b64encode(auth_str.encode()).decode()
HEADERS = {
    class="hl-string">"Authorization": fclass="hl-string">"Basic {b64_auth}",
    class="hl-string">"Content-Type": class="hl-string">"application/json"
}

class=class="hl-string">"hl-comment"># Event Log Storage
all_events = []

def get_all_pages(url, params=None):
    results = []
    current_url = url
    while current_url:
        try:
            print(fclass="hl-string">"Fetching: {current_url}")
            response = requests.get(current_url, headers=HEADERS, params=params)
            response.raise_for_status()
            data = response.json()
            
            if class="hl-string">'items' in data:
                results.extend(data[class="hl-string">'items'])
            
            class=class="hl-string">"hl-comment"># Handle Pagination
            current_url = None
            if class="hl-string">'links' in data:
                for link in data[class="hl-string">'links']:
                    if link[class="hl-string">'rel'] == class="hl-string">'next':
                        current_url = link[class="hl-string">'href']
            class=class="hl-string">"hl-comment"># Clear params after first call as next link contains them
            params = None
            
        except Exception as e:
            print(fclass="hl-string">"Error fetching data: {e}")
            break
    return results

def extract_invoice_data():
    class=class="hl-string">"hl-comment"># 1. Fetch Invoices created after start date
    params = {
        class="hl-string">"q": fclass="hl-string">"CreationDate > '{START_DATE}'",
        class="hl-string">"limit": 499,
        class="hl-string">"fields": class="hl-string">"InvoiceId,InvoiceNumber,InvoiceDate,InvoiceAmount,Supplier,CreationDate,CreatedBy,Description,InvoiceType,InvoiceStatus,ApprovalStatus,Accounted,PaymentStatus,BusinessUnit,PaymentTerms,TermsDate"
    }
    
    invoices = get_all_pages(fclass="hl-string">"{BASE_URL}{INVOICES_ENDPOINT}", params)
    print(fclass="hl-string">"Total Invoices Found: {len(invoices)}")

    for inv in invoices:
        invoice_id = inv.get(class="hl-string">'InvoiceId')
        invoice_num = inv.get(class="hl-string">'InvoiceNumber')
        print(fclass="hl-string">"Processing Invoice: {invoice_num}")

        common_attrs = {
            class="hl-string">"InvoiceNumber": invoice_num,
            class="hl-string">"SourceSystem": class="hl-string">"Oracle Fusion",
            class="hl-string">"SupplierName": inv.get(class="hl-string">'Supplier'),
            class="hl-string">"InvoiceAmount": inv.get(class="hl-string">'InvoiceAmount'),
            class="hl-string">"InvoiceDate": inv.get(class="hl-string">'InvoiceDate'),
            class="hl-string">"BusinessUnit": inv.get(class="hl-string">'BusinessUnit'),
            class="hl-string">"PaymentTerms": inv.get(class="hl-string">'PaymentTerms'),
            class="hl-string">"DueDate": inv.get(class="hl-string">'TermsDate'),
            class="hl-string">"CreatedByUserName": inv.get(class="hl-string">'CreatedBy'),
            class="hl-string">"InvoiceType": inv.get(class="hl-string">'InvoiceType'),
            class="hl-string">"LastDataUpdate": datetime.now().isoformat()
        }

        class=class="hl-string">"hl-comment"># ACTIVITY 1: Invoice Created
        all_events.append({
            **common_attrs,
            class="hl-string">"ActivityName": class="hl-string">"Invoice Created",
            class="hl-string">"EventDateTime": inv.get(class="hl-string">'CreationDate')
        })

        class=class="hl-string">"hl-comment"># ACTIVITY 2: Invoice Validated
        if inv.get(class="hl-string">'InvoiceStatus') == class="hl-string">'Validated':
            class=class="hl-string">"hl-comment"># Fusion doesn't expose ValidatedDate on header easily, using LastUpdate or approximation
            class=class="hl-string">"hl-comment"># In a real scenario, you might check a child class="hl-string">'history' resource if enabled
            all_events.append({
                **common_attrs,
                class="hl-string">"ActivityName": class="hl-string">"Invoice Validated",
                class="hl-string">"EventDateTime": inv.get(class="hl-string">'LastUpdateDate', inv.get(class="hl-string">'CreationDate')) class=class="hl-string">"hl-comment"># Fallback
            })
        
        class=class="hl-string">"hl-comment"># ACTIVITY 3: Invoice Approved / Approval Initiated
        if inv.get(class="hl-string">'ApprovalStatus') in [class="hl-string">'WFAPPROVED', class="hl-string">'Manually Approved']:
            all_events.append({
                **common_attrs,
                class="hl-string">"ActivityName": class="hl-string">"Invoice Approved",
                class="hl-string">"EventDateTime": inv.get(class="hl-string">'LastUpdateDate') class=class="hl-string">"hl-comment"># Approximation
            })
        elif inv.get(class="hl-string">'ApprovalStatus') == class="hl-string">'INITIATED':
            all_events.append({
                **common_attrs,
                class="hl-string">"ActivityName": class="hl-string">"Approval Initiated",
                class="hl-string">"EventDateTime": inv.get(class="hl-string">'LastUpdateDate')
            })

        class=class="hl-string">"hl-comment"># ACTIVITY 4: Invoice Accounted
        if inv.get(class="hl-string">'Accounted') == class="hl-string">'Y':
             all_events.append({
                **common_attrs,
                class="hl-string">"ActivityName": class="hl-string">"Invoice Accounted",
                class="hl-string">"EventDateTime": inv.get(class="hl-string">'LastUpdateDate') class=class="hl-string">"hl-comment"># Approximation used as AccountingDate field varies
            })

        class=class="hl-string">"hl-comment"># ACTIVITY 5: Invoice Cancelled
        if inv.get(class="hl-string">'InvoiceStatus') == class="hl-string">'Cancelled':
             all_events.append({
                **common_attrs,
                class="hl-string">"ActivityName": class="hl-string">"Invoice Cancelled",
                class="hl-string">"EventDateTime": inv.get(class="hl-string">'LastUpdateDate')
            })

        class=class="hl-string">"hl-comment"># FETCH SUB-RESOURCES
        class=class="hl-string">"hl-comment"># ---------------------------------------------------------
        
        class=class="hl-string">"hl-comment"># ACTIVITY 6: Invoice Line Matched (Check Lines)
        lines_url = fclass="hl-string">"{BASE_URL}{INVOICES_ENDPOINT}/{invoice_id}/child/lines"
        lines = get_all_pages(lines_url, {class="hl-string">"fields": class="hl-string">"LineNumber,CreationDate,POHeaderId"})
        
        matched_po = False
        for line in lines:
            if line.get(class="hl-string">'POHeaderId'):
                matched_po = True
                all_events.append({
                    **common_attrs,
                    class="hl-string">"ActivityName": class="hl-string">"Invoice Line Matched",
                    class="hl-string">"EventDateTime": line.get(class="hl-string">'CreationDate'),
                    class="hl-string">"PurchaseOrderNumber": str(line.get(class="hl-string">'POHeaderId'))
                })

        class=class="hl-string">"hl-comment"># ACTIVITY 7 & 8: Holds (Applied and Released)
        holds_url = fclass="hl-string">"{BASE_URL}{INVOICES_ENDPOINT}/{invoice_id}/child/invoiceHolds"
        holds = get_all_pages(holds_url)
        
        for hold in holds:
            class=class="hl-string">"hl-comment"># Hold Applied
            all_events.append({
                **common_attrs,
                class="hl-string">"ActivityName": class="hl-string">"Invoice Hold Applied",
                class="hl-string">"EventDateTime": hold.get(class="hl-string">'CreationDate')
            })
            
            class=class="hl-string">"hl-comment"># Hold Released
            if hold.get(class="hl-string">'ReleaseDate'):
                all_events.append({
                    **common_attrs,
                    class="hl-string">"ActivityName": class="hl-string">"Invoice Hold Released",
                    class="hl-string">"EventDateTime": hold.get(class="hl-string">'ReleaseDate')
                })

        class=class="hl-string">"hl-comment"># ACTIVITY 9, 10, 11: Payments (Selected, Created, Cleared)
        class=class="hl-string">"hl-comment"># Note: In Fusion REST, we go Invoice -> Installments -> Payment Details
        installments_url = fclass="hl-string">"{BASE_URL}{INVOICES_ENDPOINT}/{invoice_id}/child/installments"
        installments = get_all_pages(installments_url)
        
        for inst in installments:
            class=class="hl-string">"hl-comment"># Check if paid
            if inst.get(class="hl-string">'PaymentStatusFlag') in [class="hl-string">'Y', class="hl-string">'P']: class=class="hl-string">"hl-comment"># Y=Fully Paid, P=Partially
                 all_events.append({
                    **common_attrs,
                    class="hl-string">"ActivityName": class="hl-string">"Payment Selected",
                    class="hl-string">"EventDateTime": inst.get(class="hl-string">'LastUpdateDate') class=class="hl-string">"hl-comment"># Proxy for selection time
                })
                
            class=class="hl-string">"hl-comment"># Attempt to fetch payment details if link exists
            class=class="hl-string">"hl-comment"># This is simplified; usually requires querying the class="hl-string">'apPayments' endpoint using the check_id found here
            class=class="hl-string">"hl-comment"># We simulate the extraction if fields are present
            class=class="hl-string">"hl-comment"># In a full script, you would perform a GET on the class="hl-string">'payment' link relation provided in the installment response
            
            class=class="hl-string">"hl-comment"># Placeholder logic for Payment Created (Check Date)
            if inst.get(class="hl-string">'FirstPaymentDate'):
                all_events.append({
                    **common_attrs,
                    class="hl-string">"ActivityName": class="hl-string">"Payment Created",
                    class="hl-string">"EventDateTime": inst.get(class="hl-string">'FirstPaymentDate'),
                    class="hl-string">"PaymentDate": inst.get(class="hl-string">'FirstPaymentDate')
                })
                
                class=class="hl-string">"hl-comment"># Placeholder for Cleared (assuming cleared if paid and time passed, or check status endpoint)
                class=class="hl-string">"hl-comment"># Real implementation requires querying /fscmRestApi/resources/11.13.18.05/payablesPayments
                class=class="hl-string">"hl-comment"># For this script, we record Payment Created.

class=class="hl-string">"hl-comment"># Execute Extraction
extract_invoice_data()

class=class="hl-string">"hl-comment"># Export to DataFrame and CSV
if all_events:
    df = pd.DataFrame(all_events)
    class=class="hl-string">"hl-comment"># Ensure datetime format
    df[class="hl-string">'EventDateTime'] = pd.to_datetime(df[class="hl-string">'EventDateTime'])
    df = df.sort_values(by=[class="hl-string">'InvoiceNumber', class="hl-string">'EventDateTime'])
    
    print(fclass="hl-string">"Exporting {len(df)} events to {OUTPUT_FILE}...")
    df.to_csv(OUTPUT_FILE, index=False)
    print(class="hl-string">"Done.")
else:
    print(class="hl-string">"No events extracted.")