#!/bin/bash

JSON_FILE="config.json"

read_json() {
    local JSON_FILE="$1"
    local SECTION="$2"
    local KEY="$3"

    jq -r ".${SECTION}.${KEY}" "$JSON_FILE"
}

# Function to write a value to a JSON configuration file
write_json() {
    local JSON_FILE="$1"
    local SECTION="$2"
    local KEY="$3"
    local VALUE="$4"
    
     # It important to check if the file is valid  otherwise stuff breaks
     if ! jq -e . < "$JSON_FILE" > /dev/null 2>&1; then
        echo "Error: JSON file is not valid JSON."
        return 1
    fi
    
    # Using jq to set the value. The original file is replaced with a new file with the updated value.
    jq ".${SECTION}.${KEY} = \"$VALUE\"" "$JSON_FILE" > "temp.json" && mv "temp.json" "$JSON_FILE"
   
}

create_json() {
    local JSON_FILE="$1"
    echo '{"bashini": "new"}' | jq '.' > "$JSON_FILE" # well we need something in there
    write_json "$JSON_FILE" "restic" "password" "backupsarefun" # for the openwrt backup script here for testing
}

check_json() {
    local JSON_FILE="$1"
    if [ ! -f "$JSON_FILE" ]; then
        create_json "$JSON_FILE"
    fi
}

check_json "$JSON_FILE"