#!/usr/bin/env fish
# This run(.fish) script serves as a central place to store frequently run commands for this project.
# Source: https://github.com/mitchell/run.fish

### Config ###
# Top-level configurations, like function prefixes and argument delimeters
#
set -g run_func_prefix 'run'
set -g run_arg_delimeter ':'

function define_aliases
    alias run_h='run_hello'
    alias run_l='run_lang'

    alias lang_f='lang_fr'
end


### Commands ###
# Add, edit, and remove commands freely below.
# To add a command simply create a function with this naming scheme: {run_func_prefix}_{name}.
#
function run_hello -d 'Say hello to the world'
    echo 'hello, world!'
end

function run_hey -a name -d 'Say hey to someone specific'
    echo "hey, $name!"
end

function run_lang -a command -d 'Groups lang subcommands'
    function lang_en -d 'Say hello in english'
        run_hello
    end

    function lang_fr -a name -d 'Say hello the world or someone specific, in french'
        if test -n "$name"
            echo "bonjour, $name!"
        else
            echo 'bonjour, le monde!'
        end
    end

    execute_command 'lang' $command
end

### Default Commands ###
# Do not edit, unless you want to alter how the default commands work.
#
# Below is a set of default commands, like help and commands. They introspect on any valid run
# script.
#
# Examples:
# ./run help
# ./run help:hello
# ./run commands
#
function "$run_func_prefix"_commands -d 'List all available commands'
    functions --names | grep $run_func_prefix'_' | string replace $run_func_prefix'_' ''
end

function "$run_func_prefix"_help -a command -d 'Print command definition'
    if test -n "$command"
        functions $run_func_prefix'_'$command
    else
        echo 'Here are the available commands:'
        $run_func_prefix'_commands'
        echo \n"To see a command's definition and description do `./run help$run_arg_delimeter{command}`"
    end
end

### Command Execution ###
# Do not edit, unless you want to alter how the script executes commands.
#
# This script can execute 1 or more commands like make. It can also receive 1 argument per
# command or subcommand in the following format: {name}{run_arg_delimeter}{argument}.
#
# Examples:
# ./run hello
# ./run hey:mitchell
# ./run lang:fr:mitchell
# ./run hello hey:mitchell lang:fr
#
function main
    define_aliases

    for command in $argv
        set -l last_status $status
        test $last_status -gt 0; and exit $last_status

        execute_command $run_func_prefix $command
    end
end

function execute_command -a prefix command
    set -l args (string split --max 1 $run_arg_delimeter $command)
    set -l func $prefix'_'$args[1]

    if functions -q $func
        $func $args[2]
    else
        echo "$prefix command '$command' does not exist"
        exit 1
    end
end

main $argv