#!/bin/bash
#
#  Copyright (c) 2025, The OpenThread Authors.
#  All rights reserved.
#
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#  modification, are permitted provided that the following conditions are met:
#  1. Redistributions of source code must retain the above copyright
#     notice, this list of conditions and the following disclaimer.
#  2. Redistributions in binary form must reproduce the above copyright
#     notice, this list of conditions and the following disclaimer in the
#     documentation and/or other materials provided with the distribution.
#  3. Neither the name of the copyright holder nor the
#     names of its contributors may be used to endorse or promote products
#     derived from this software without specific prior written permission.
#
#  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
#  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
#  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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#  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
#  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
#  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
#  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
#  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
#  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
#  POSSIBILITY OF SUCH DAMAGE.
#

set_dut_destination()
{
    local OT_CTL="${1:-ot-ctl}"

    sudo "${OT_CTL}" extaddr

    # Command to get the extaddr value and trim any trailing whitespace/newline
    EXTADDR=$(sudo "${OT_CTL}" extaddr | head -n 1 | tr -d '[:space:]')

    # Check if the command executed successfully
    if [[ $? -ne 0 || -z $EXTADDR ]]; then
        echo "Extaddr not found."
        return 1
    fi

    # Directory containing the .bru files
    DIRECTORY="./actions"

    # Find and replace "destination": lines in text files
    for file in "$DIRECTORY"/*.bru; do
        if [[ -f $file ]]; then
            # Create a temporary file for detecting changes
            tmpfile=$(mktemp)
            cp "$file" "$tmpfile"

            sed -i -E "s/\"destination\":.*$/\"destination\": \"$EXTADDR\",/" "$file"

            # Compare the original file with the modified file
            if ! cmp -s "$tmpfile" "$file"; then
                echo "Updated $file"
            fi

            # Clean up the temporary file
            rm "$tmpfile"
        fi
    done

    echo "Set DUT destination complete."
}

set_dut_destination "$1"
