pre-push

#!/bin/bash

# Exit immediately if a command exits with a non-zero status
set -e

# Function to output error messages
error() {
    echo "Error: $1" >&2
    exit 1
}

# Read from stdin to get information about refs being pushed
while read local_ref local_sha remote_ref remote_sha
do
    # Check if the ref being pushed is a tag
    if [[ "$remote_ref" == refs/tags/* ]]; then
        tag_name="${remote_ref#refs/tags/}"
        
        echo "Processing tag: $tag_name"

        # Find all .hery files in the root directory
        hery_files=($(find . -maxdepth 1 -type f -name "*.hery" -printf "%f\n"))

        if [ ${#hery_files[@]} -eq 0 ]; then
            error "No .hery files found in the root directory."
        fi

        for hery_file in "${hery_files[@]}"
        do
            base_name="${hery_file%.hery}"
            hidden_dir=".$base_name"

            echo "Checking for directory: $hidden_dir"

            # Check if the hidden directory exists
            if [ ! -d "$hidden_dir" ]; then
                error "Directory '$hidden_dir' not found for file '$hery_file'."
            fi

            schema_file="$hidden_dir/schema.hery.json"

            echo "Checking for schema file: $schema_file"

            # Check if schema.hery.json exists
            if [ ! -f "$schema_file" ]; then
                error "File '$schema_file' not found."
            fi

            # Extract the 'id' property from the JSON schema
            id_value=$(grep -oP '"id"\s*:\s*"\K[^"]+' "$schema_file")

            if [ -z "$id_value" ]; then
                error "The 'id' property is missing in '$schema_file'."
            fi

            # Check if 'id' starts with 'urn:hery:<name>:'
            expected_prefix="urn:hery:$base_name:"
            if [[ "$id_value" != $expected_prefix* ]]; then
                error "The 'id' in '$schema_file' does not start with '$expected_prefix'. Found: '$id_value'"
            fi

            # Extract the suffix from the URN
            urn_suffix="${id_value#$expected_prefix}"

            # Check if the tag name matches the URN suffix
            if [ "$tag_name" != "$urn_suffix" ]; then
                error "Tag name '$tag_name' does not match the URN suffix '$urn_suffix' in '$schema_file'. Please ensure the tag version matches the URN suffix."
            fi

            echo "Tag '$tag_name' passed all checks for '$hery_file'."
        done
    fi
done

echo "All tags passed the checks."
exit 0