-- ===================================================================
-- MARS-828: Final Summary Report
-- ===================================================================
-- Purpose: Complete status of MARS-828 implementation
-- Author: Grzegorz Michalski
-- Date: 2026-01-28
-- ===================================================================

SET SERVEROUTPUT ON SIZE UNLIMITED
SET LINESIZE 200
SET PAGESIZE 2000

PROMPT
PROMPT ================================================================
PROMPT MARS-828: FINAL IMPLEMENTATION SUMMARY REPORT
PROMPT ================================================================
PROMPT

-- 1. Package Status
PROMPT 1. PACKAGE STATUS
PROMPT ================================================================
SELECT 
    object_name,
    object_type,
    status,
    TO_CHAR(last_ddl_time, 'YYYY-MM-DD HH24:MI:SS') as last_modified
FROM all_objects 
WHERE owner = 'CT_MRDS' 
  AND object_name = 'FILE_ARCHIVER'
  AND object_type IN ('PACKAGE', 'PACKAGE BODY')
ORDER BY object_type;

SELECT 
    'Version: ' || CT_MRDS.FILE_ARCHIVER.GET_VERSION() AS info 
FROM DUAL
UNION ALL
SELECT 
    'Build Date: ' || SUBSTR(CT_MRDS.FILE_ARCHIVER.GET_BUILD_INFO(), 
                             INSTR(CT_MRDS.FILE_ARCHIVER.GET_BUILD_INFO(), 'Build Date:') + 12, 19)
FROM DUAL;

-- 2. Package Version Tracking
PROMPT
PROMPT 2. PACKAGE VERSION TRACKING
PROMPT ================================================================
SELECT 
    PACKAGE_NAME,
    PACKAGE_VERSION,
    PACKAGE_BUILD_DATE,
    TO_CHAR(TRACKING_DATE, 'YYYY-MM-DD HH24:MI:SS') AS tracked_on,
    CT_MRDS.ENV_MANAGER.CHECK_PACKAGE_CHANGES(PACKAGE_OWNER, PACKAGE_NAME) AS status
FROM CT_MRDS.A_PACKAGE_VERSION_TRACKING
WHERE PACKAGE_OWNER = 'CT_MRDS'
  AND PACKAGE_NAME = 'FILE_ARCHIVER'
ORDER BY TRACKING_DATE DESC
FETCH FIRST 1 ROW ONLY;

-- 3. Database Schema Changes
PROMPT
PROMPT 3. DATABASE SCHEMA CHANGES
PROMPT ================================================================
PROMPT New columns in A_SOURCE_FILE_CONFIG:
SELECT 
    column_name,
    data_type || 
    CASE 
        WHEN data_type = 'VARCHAR2' THEN '(' || data_length || ')'
        WHEN data_type = 'NUMBER' THEN '(' || NVL(TO_CHAR(data_precision), '*') || 
                                       CASE WHEN data_scale IS NOT NULL THEN ',' || data_scale END || ')'
        ELSE ''
    END AS data_type,
    nullable,
    data_default
FROM all_tab_columns
WHERE owner = 'CT_MRDS'
  AND table_name = 'A_SOURCE_FILE_CONFIG'
  AND column_name IN ('ARCHIVAL_STRATEGY', 'MINIMUM_AGE_MONTHS')
ORDER BY column_name;

PROMPT
PROMPT Constraints:
SELECT 
    constraint_name,
    constraint_type,
    search_condition
FROM all_constraints
WHERE owner = 'CT_MRDS'
  AND table_name = 'A_SOURCE_FILE_CONFIG'
  AND constraint_name = 'CHK_ARCHIVAL_STRATEGY';

PROMPT
PROMPT Triggers:
SELECT 
    trigger_name,
    status,
    trigger_type,
    triggering_event
FROM all_triggers
WHERE owner = 'CT_MRDS'
  AND trigger_name = 'TRG_BI_A_SRC_FILE_CFG_ARCH_VAL';

-- 4. Archival Strategy Distribution
PROMPT
PROMPT 4. ARCHIVAL STRATEGY DISTRIBUTION
PROMPT ================================================================
SELECT 
    ARCHIVAL_STRATEGY,
    COUNT(*) AS config_count,
    ROUND(COUNT(*) * 100.0 / SUM(COUNT(*)) OVER (), 2) AS percentage
FROM CT_MRDS.A_SOURCE_FILE_CONFIG
WHERE SOURCE_FILE_TYPE = 'INPUT'
GROUP BY ARCHIVAL_STRATEGY
ORDER BY config_count DESC;

-- 5. Strategy Examples by Source
PROMPT
PROMPT 5. STRATEGY EXAMPLES BY SOURCE
PROMPT ================================================================
SELECT 
    A_SOURCE_KEY AS source,
    ARCHIVAL_STRATEGY AS strategy,
    MINIMUM_AGE_MONTHS AS min_age,
    DAYS_FOR_ARCHIVE_THRESHOLD AS threshold_days,
    COUNT(*) AS tables
FROM CT_MRDS.A_SOURCE_FILE_CONFIG
WHERE SOURCE_FILE_TYPE = 'INPUT'
GROUP BY A_SOURCE_KEY, ARCHIVAL_STRATEGY, MINIMUM_AGE_MONTHS, DAYS_FOR_ARCHIVE_THRESHOLD
HAVING A_SOURCE_KEY IN ('C2D', 'LM', 'CSDB', 'TOP', 'CEPH', 'TMS')
ORDER BY A_SOURCE_KEY, ARCHIVAL_STRATEGY;

-- 6. CSDB Configuration (Special Case - 6 months retention)
PROMPT
PROMPT 6. CSDB DEBT CONFIGURATION (6-Month Retention Requirement)
PROMPT ================================================================
SELECT 
    SOURCE_FILE_ID,
    TABLE_ID,
    ARCHIVAL_STRATEGY,
    MINIMUM_AGE_MONTHS,
    'Retains data for ' || MINIMUM_AGE_MONTHS || ' months before archival' AS retention_policy
FROM CT_MRDS.A_SOURCE_FILE_CONFIG
WHERE A_SOURCE_KEY = 'CSDB'
  AND SOURCE_FILE_TYPE = 'INPUT'
  AND TABLE_ID LIKE 'CSDB_DEBT%'
ORDER BY TABLE_ID;

-- 7. Implementation Testing Summary
PROMPT
PROMPT 7. IMPLEMENTATION TESTING SUMMARY
PROMPT ================================================================
DECLARE
    vCurrentMonth DATE := TRUNC(SYSDATE, 'MM');
    v3MonthsAgo DATE := ADD_MONTHS(TRUNC(SYSDATE, 'MM'), -3);
    v6MonthsAgo DATE := ADD_MONTHS(TRUNC(SYSDATE, 'MM'), -6);
    v30DaysAgo TIMESTAMP := SYSTIMESTAMP - INTERVAL '30' DAY;
BEGIN
    DBMS_OUTPUT.PUT_LINE('Reference Dates for Strategy Testing:');
    DBMS_OUTPUT.PUT_LINE('--------------------------------------');
    DBMS_OUTPUT.PUT_LINE('Current Month Start: ' || TO_CHAR(vCurrentMonth, 'YYYY-MM-DD'));
    DBMS_OUTPUT.PUT_LINE('3 Months Ago:        ' || TO_CHAR(v3MonthsAgo, 'YYYY-MM-DD'));
    DBMS_OUTPUT.PUT_LINE('6 Months Ago:        ' || TO_CHAR(v6MonthsAgo, 'YYYY-MM-DD'));
    DBMS_OUTPUT.PUT_LINE('30 Days Ago:         ' || TO_CHAR(v30DaysAgo, 'YYYY-MM-DD HH24:MI:SS'));
    DBMS_OUTPUT.PUT_LINE('');
    
    DBMS_OUTPUT.PUT_LINE('WHERE Clause Logic by Strategy:');
    DBMS_OUTPUT.PUT_LINE('--------------------------------------');
    DBMS_OUTPUT.PUT_LINE('1. THRESHOLD_BASED:');
    DBMS_OUTPUT.PUT_LINE('   extract(day from (systimestamp - workflow_start)) > DAYS_FOR_ARCHIVE_THRESHOLD');
    DBMS_OUTPUT.PUT_LINE('   Example: Data older than 30 days archived');
    DBMS_OUTPUT.PUT_LINE('');
    
    DBMS_OUTPUT.PUT_LINE('2. CURRENT_MONTH_ONLY:');
    DBMS_OUTPUT.PUT_LINE('   TRUNC(workflow_start, ''MM'') < TRUNC(SYSDATE, ''MM'')');
    DBMS_OUTPUT.PUT_LINE('   Example: All data from previous months archived');
    DBMS_OUTPUT.PUT_LINE('   Current month data (' || TO_CHAR(vCurrentMonth, 'YYYY-MM') || ') retained');
    DBMS_OUTPUT.PUT_LINE('');
    
    DBMS_OUTPUT.PUT_LINE('3. MINIMUM_AGE_MONTHS (CSDB = 6 months):');
    DBMS_OUTPUT.PUT_LINE('   workflow_start < ADD_MONTHS(TRUNC(SYSDATE, ''MM''), -6)');
    DBMS_OUTPUT.PUT_LINE('   Example: Data before ' || TO_CHAR(v6MonthsAgo, 'YYYY-MM-DD') || ' archived');
    DBMS_OUTPUT.PUT_LINE('   Last 6 months retained');
    DBMS_OUTPUT.PUT_LINE('');
    
    DBMS_OUTPUT.PUT_LINE('4. HYBRID (TOP = current month + 3 months):');
    DBMS_OUTPUT.PUT_LINE('   TRUNC(workflow_start, ''MM'') < TRUNC(SYSDATE, ''MM'')');
    DBMS_OUTPUT.PUT_LINE('   AND workflow_start < ADD_MONTHS(TRUNC(SYSDATE, ''MM''), -3)');
    DBMS_OUTPUT.PUT_LINE('   Example: Previous months AND before ' || TO_CHAR(v3MonthsAgo, 'YYYY-MM-DD'));
    DBMS_OUTPUT.PUT_LINE('   Both conditions must be met');
END;
/

-- 8. Business Requirements Validation
PROMPT
PROMPT 8. BUSINESS REQUIREMENTS VALIDATION
PROMPT ================================================================
DECLARE
    vCsdbCount NUMBER;
    vLmCount NUMBER;
    vTopCount NUMBER;
BEGIN
    -- Requirement 1: CSDB 6-month retention
    SELECT COUNT(*) INTO vCsdbCount
    FROM CT_MRDS.A_SOURCE_FILE_CONFIG
    WHERE A_SOURCE_KEY = 'CSDB'
      AND TABLE_ID LIKE 'CSDB_DEBT%'
      AND ARCHIVAL_STRATEGY = 'MINIMUM_AGE_MONTHS'
      AND MINIMUM_AGE_MONTHS = 6;
    
    -- Requirement 2: LM/TOP current month only
    SELECT COUNT(*) INTO vLmCount
    FROM CT_MRDS.A_SOURCE_FILE_CONFIG
    WHERE A_SOURCE_KEY IN ('LM', 'TOP')
      AND ARCHIVAL_STRATEGY IN ('CURRENT_MONTH_ONLY', 'HYBRID');
    
    DBMS_OUTPUT.PUT_LINE('Requirement 1: CSDB 6-month retention');
    DBMS_OUTPUT.PUT_LINE('  Status: ' || CASE WHEN vCsdbCount >= 4 THEN 'PASS ✓' ELSE 'FAIL ✗' END);
    DBMS_OUTPUT.PUT_LINE('  Configured tables: ' || vCsdbCount || ' (expected: 4)');
    DBMS_OUTPUT.PUT_LINE('');
    
    DBMS_OUTPUT.PUT_LINE('Requirement 2: Non-current month archival (LM/TOP)');
    DBMS_OUTPUT.PUT_LINE('  Status: ' || CASE WHEN vLmCount > 0 THEN 'PASS ✓' ELSE 'FAIL ✗' END);
    DBMS_OUTPUT.PUT_LINE('  Configured tables: ' || vLmCount);
    DBMS_OUTPUT.PUT_LINE('');
    
    DBMS_OUTPUT.PUT_LINE('Overall Implementation: ' || 
        CASE WHEN vCsdbCount >= 4 AND vLmCount > 0 THEN 'SUCCESS ✓✓✓' ELSE 'INCOMPLETE' END);
END;
/

PROMPT
PROMPT ================================================================
PROMPT MARS-828: IMPLEMENTATION COMPLETE
PROMPT ================================================================
PROMPT
PROMPT Summary of Changes:
PROMPT - FILE_ARCHIVER upgraded to v3.0.0
PROMPT - Added ARCHIVAL_STRATEGY column (4 strategies supported)
PROMPT - Added MINIMUM_AGE_MONTHS column for age-based retention
PROMPT - Created validation trigger (TRG_BI_A_SRC_FILE_CFG_ARCH_VAL)
PROMPT - Implemented GET_ARCHIVAL_WHERE_CLAUSE private function
PROMPT - Updated ARCHIVE_TABLE_DATA to use strategy-based filtering
PROMPT - Updated GATHER_TABLE_STAT to use strategy-based statistics
PROMPT
PROMPT Business Requirements Met:
PROMPT ✓ CSDB data retention: 6 months (MINIMUM_AGE_MONTHS strategy)
PROMPT ✓ General archival: Current month only (CURRENT_MONTH_ONLY/HYBRID)
PROMPT ✓ Backward compatibility: THRESHOLD_BASED (existing behavior)
PROMPT
PROMPT Files Deployed:
PROMPT - 01_MARS_828_install_add_archival_strategy_columns.sql
PROMPT - 02_MARS_828_install_archival_strategy_trigger.sql
PROMPT - 03_MARS_828_install_CT_MRDS_FILE_ARCHIVER_SPEC.sql
PROMPT - 04_MARS_828_install_CT_MRDS_FILE_ARCHIVER_BODY.sql
PROMPT - 05_MARS_828_verify_installation.sql
PROMPT - 06_MARS_828_track_version.sql
PROMPT - 07_MARS_828_verify_packages_version.sql
PROMPT
PROMPT Rollback Available: rollback_mars828.sql
PROMPT ================================================================
