// SPDX-License-Identifier: MIT
// Copyright (c) 2026 Incoprea
// Merge overlapping exhibit time windows
// Not compiled or tested in-world
// Setup: Place in a spare owned prim. Set start/end pairs in any order with end>=start. Owner touch runs a bounded local calculation.
// Stop / restore: Disable/remove. No travel, publication, payments or external operations occur.
// Notes: All times share one arbitrary unit. Touching intervals are merged; empty input yields an empty schedule.
// License: see LICENSE in this distribution.
// Original Incoprea. MIT. Local planning demonstration.
list WINDOWS=[1.0,3.0,2.0,5.0,8.0,9.0,9.0,11.0];
default
{
    touch_start(integer detectedCount)
    {
        if(llDetectedKey(0)!=llGetOwner())return;
        integer n=llGetListLength(WINDOWS);
        if(n%2)
        {
            llOwnerSay("Use start/end pairs.");
            return;
        }
        integer i;
        for(i=0;i<n;i+=2)if(llList2Float(WINDOWS,i+1)<llList2Float(WINDOWS,i))
        {
            llOwnerSay("Negative duration.");
            return;
        }
        list sorted=llListSort(WINDOWS,2,TRUE);
        list result;
        if(n==0)
        {
            llOwnerSay("No intervals.");
            return;
        }
        float start=llList2Float(sorted,0);
        float end=llList2Float(sorted,1);
        for(i=2;i<n;i+=2)
        {
            float a=llList2Float(sorted,i);
            float b=llList2Float(sorted,i+1);
            if(a<=end)
            {
                if(b>end)end=b;
            }
            else
            {
                result+=[start,end];
                start=a;
                end=b;
            }
        }
        result+=[start,end];
        llOwnerSay("Merged intervals="+llDumpList2String(result,","));
    }
}