awk '
BEGIN {
    print "chr\ttranscript_start\ttranscript_stop\ttranslation_start\ttranslation_stop\tstrand\tgene_name\ttranscript_id\ttype\texon_starts\texon_ends\tadditional_info"
}
{
    split($9, attrs, "; ")
    gene_id = ""
    transcript_id = ""
    gene_name = ""
    
    # Extract attributes
    for (i in attrs) {
        if (attrs[i] ~ /gene_id/) {
            split(attrs[i], gene, " ")
            gene_id = gene[2]
        }
        if (attrs[i] ~ /transcript_id/) {
            split(attrs[i], trans, " ")
            transcript_id = trans[2]
        }
        if (attrs[i] ~ /gene_name/) {
            split(attrs[i], name, " ")
            gene_name = name[2]
        }
    }

    if ($3 == "transcript") {
        transcript_start = $4
        transcript_stop = $5
        translation_start = "."  # Placeholder
        translation_stop = "."   # Placeholder
        strand = $7

        # Initialize exon lists for this transcript
        exon_starts[transcript_id] = ""
        exon_ends[transcript_id] = ""
        
        # Store transcript info
        transcripts[transcript_id] = $1 "\t" transcript_start "\t" transcript_stop "\t" translation_start "\t" translation_stop "\t" strand "\t" gene_name "\t" transcript_id "\ttranscript"
    }

    if ($3 == "exon") {
        # Get the current transcript_id
        for (i in attrs) {
            if (attrs[i] ~ /transcript_id/) {
                split(attrs[i], trans, " ")
                current_transcript_id = trans[2]
                break
            }
        }
        exon_starts[current_transcript_id] = (exon_starts[current_transcript_id] ? exon_starts[current_transcript_id] "," : "") $4
        exon_ends[current_transcript_id] = (exon_ends[current_transcript_id] ? exon_ends[current_transcript_id] "," : "") $5
    }
}
END {
    for (trans_id in transcripts) {
        print transcripts[trans_id] "\t" exon_starts[trans_id] "\t" exon_ends[trans_id] "\t" ""
    }
}' adr_gland_filtered2.gtf > output.bed