#COMPILE EXE
#DIM ALL

FUNCTION PBMAIN() AS LONG
    LOCAL source_dir AS STRING
    LOCAL target_dir AS STRING
    LOCAL file_count AS LONG
    LOCAL i AS LONG
    LOCAL file_name AS STRING
    LOCAL src_time AS DOUBLE
    LOCAL dst_time AS DOUBLE
    LOCAL src_size AS LONG
    LOCAL dst_size AS LONG
    LOCAL copied_count AS LONG
    LOCAL skipped_count AS LONG
    LOCAL newer_count AS LONG
    LOCAL temp_str AS STRING
    LOCAL action_str AS STRING

    PRINT "Directory Synchronization (Simulated)"
    PRINT "====================================="
    PRINT ""

    source_dir = "C:\Source\Data"
    target_dir = "D:\Backup\Data"
    copied_count = 0
    skipped_count = 0
    newer_count = 0

    PRINT "Source: " + source_dir
    PRINT "Target: " + target_dir
    PRINT ""

    ' Simulated file list with metadata
    file_count = 8

    i = 0
    WHILE i < file_count
        IF i = 0 THEN
            file_name = "report.txt"
            src_time = 50000.0
            src_size = 1024
            dst_time = 48000.0
            dst_size = 1024
        END IF
        IF i = 1 THEN
            file_name = "data.csv"
            src_time = 52000.0
            src_size = 2048
            dst_time = 52000.0
            dst_size = 512
        END IF
        IF i = 2 THEN
            file_name = "notes.txt"
            src_time = 49000.0
            src_size = 512
            dst_time = 51000.0
            dst_size = 512
        END IF
        IF i = 3 THEN
            file_name = "config.ini"
            src_time = 53000.0
            src_size = 256
            dst_time = 0
            dst_size = 0
        END IF
        IF i = 4 THEN
            file_name = "backup.zip"
            src_time = 48000.0
            src_size = 102400
            dst_time = 48000.0
            dst_size = 102400
        END IF
        IF i = 5 THEN
            file_name = "readme.md"
            src_time = 54000.0
            src_size = 4096
            dst_time = 0
            dst_size = 0
        END IF
        IF i = 6 THEN
            file_name = "old_data.txt"
            src_time = 0
            src_size = 0
            dst_time = 47000.0
            dst_size = 512
        END IF
        IF i = 7 THEN
            file_name = "image.png"
            src_time = 51000.0
            src_size = 50176
            dst_time = 50000.0
            dst_size = 49152
        END IF

        action_str = ""

        IF src_size = 0 THEN
            action_str = "SOURCE MISSING - will not sync"
        ELSEIF dst_size = 0 THEN
            action_str = "NEW FILE - copy to target"
            copied_count = copied_count + 1
        ELSEIF src_time > dst_time THEN
            action_str = "NEWER VERSION - update target"
            newer_count = newer_count + 1
        ELSEIF src_time = dst_time AND src_size = dst_size THEN
            action_str = "IDENTICAL - skip"
            skipped_count = skipped_count + 1
        ELSEIF src_time < dst_time THEN
            action_str = "TARGET NEWER - skip (source older)"
            skipped_count = skipped_count + 1
        ELSE
            action_str = "SIZE MISMATCH - re-copy"
            copied_count = copied_count + 1
        END IF

        PRINT "  " + file_name + ": " + action_str
        i = i + 1
    WEND

    PRINT ""
    temp_str = STR$(copied_count)
    PRINT "Files to copy: " + temp_str
    temp_str = STR$(newer_count)
    PRINT "Files to update: " + temp_str
    temp_str = STR$(skipped_count)
    PRINT "Files skipped: " + temp_str
    temp_str = STR$(copied_count + newer_count)
    PRINT "Total operations: " + temp_str

    ' Simulate sync
    PRINT ""
    PRINT "Simulating synchronization..."
    i = 0
    WHILE i < file_count
        dst_size = src_size
        dst_time = src_time
        i = i + 1
    WEND

    PRINT "Synchronization complete."
    PRINT ""
    PRINT "Directory sync demo complete."

    FUNCTION = 0
END FUNCTION
