#!/bin/bash

[ -n "$_INCGD_json" ] && return || readonly _INCGD_json=1
source /usr/lib/set-root-pw/json-parser.sh


json_parser="/bin/bash /usr/lib/set-root-pw/json-parser.sh"

# USAGE: json_read path "to the" requested item, but only if it's leaf node
# will fetch "my cool value" from the following JSON
# "path": {
#   "to the": {
#     "requested": {
#       "item": "my cool value"
#     }
#   }
# }
json_read()
{
    # Create JSON.sh key to search json tree
    searchpath="\["
    for pt_part in "$@"; do
        searchpath="${searchpath}\"\?$pt_part\"\?,";
    done
    searchpath="${searchpath%,*}\]"

    # Search and trim json path at the start of the string
    $json_parser -l | grep "${searchpath}" | \
        awk -F ']\t' '{print $2}' | \
        sed -e 's/^"//' \
            -e 's/"$//' 2> /dev/null
}

# USAGE: json_get_branch path "to the" requested
# will fetch json branch {"item": "my cool value"} from the following JSON
# "path": {
#   "to the": {
#     "requested": {
#       "item": "my cool value"
#     }
#   }
# }
json_get_branch()
{
    # Create JSON.sh key to search json tree
    searchpath="\["
    for pt_part in "$@"; do
        searchpath="${searchpath}\"\?$pt_part\"\?,";
    done
    searchpath="${searchpath%,*}\]"

    # Search and trim json path at the start of the string
    $json_parser | grep "${searchpath}" | \
        sed -e 's/^\["[^"]\+"\]\s\+//' \
            -e 's/^"//' \
            -e 's/"$//' 2> /dev/null
}