#!/usr/bin/env fish

function __fisher_format_source_safe
    if not command fish_indent $argv ^ /dev/null
        command fish_indent
    end
end

function __fisher_home_humanize
    set -l tilde "$fisher_color_param~$fisher_color_close"
    sed "s|$HOME|$tilde|"
end

function __fisher_run_commands -a message commands
    set -l fish_debug_copy $fish_debug
    set fish_debug

    set -l tmp (mktemp -t fisherman.XXX)

    fish -c "$commands" > /dev/null ^ $tmp &

    while true
        for spinner in ⠋ ⠙ ⠹ ⠸ ⠼ ⠴ ⠦ ⠧ ⠇ ⠏
            set -l message (printf "%s\n" $message | __fisher_home_humanize)
            printf "  $fisher_color_param$spinner$fisher_color_close $message\r"
            sleep 0.05
        end

        set -l last_job (jobs -l | command awk -v FS=\t '
            /[0-9]+\t/{
                jobs[++job_count] = $1
            }

            END {
                for (i = 1; i <= job_count; i++) {
                    print(jobs[i])
                }

                exit job_count == 0
            }
        ')

        if test -z "$last_job"
            break
        end
    end

    if test -s $tmp
        cat $tmp

        printf "\r $fisher_error_symbol\n\n"

        printf "Sorry, but I couldn't install fisherman. Some things you can try:\n\n"

        printf "%s\n" " $fisher_arrow_symbol Upgrade your Git version (^2.0)"
        printf "%s\n" " $fisher_arrow_symbol Upgrade your Fish version (^2.2.0)"
        printf "%s\n" " $fisher_arrow_symbol Make sure you can write to $fisher_home"
        printf "%s\n"
        printf "%s\n" "For more help visit "$fisher_color_uline"http://issues.fisherman.sh$fisher_color_close"

        command rm -f $tmp

        set fish_debug $fish_debug_copy

        exit 1
    end

    set fish_debug $fish_debug_copy

    command rm -f $tmp

    printf "\r $fisher_check_symbol \n"
end

function __fisher_install_fisherman
    set xdg_home ~/.local/share
    set xdg_config ~/.config

    if test ! -z "$XDG_DATA_HOME"
        set xdg_home "$XDG_DATA_HOME"
    end

    if test ! -z "$XDG_CONFIG_HOME"
        set xdg_config "$XDG_CONFIG_HOME"
    end

    set fisher_home "$xdg_home/fisherman"
    set fisher_config "$xdg_config/fisherman"
    set fish_config "$xdg_config/fish"

    if test ! -z "$FISHER_HOME"
        set fisher_home "$FISHER_HOME"
    end

    if test ! -z "$FISHER_CONFIG"
        set fisher_config "$FISHER_CONFIG"
    end

    set -l config "$fish_config/config.fish"

    if test -d $fisher_home
        printf " $fisher_error_symbol %s\n\n" "fisherman is already installed. To reinstall:"

        printf " $fisher_arrow_symbol %s\n" "Remove $fisher_home" \
            | __fisher_home_humanize

        if test -s $config
            printf " $fisher_arrow_symbol %s\n" "Remove this configuration from $fish_config" \
                | __fisher_home_humanize

            printf "%s\n"
            set -l indent "    "
            grep "fisher" $config | __fisher_format_source_safe --ansi | sed "s/^/ $indent /"

            set_color normal
        end

        printf "\n%s\n" "For more help visit "$fisher_color_uline"http://issues.fisherman.sh$fisher_color_close"

        exit 1
    end

    if test "$version" = 2.1.2
        printf "%s\n" (set_color ff0
            )" • Please upgrade to fish 2.2.0 for best results.$fisher_color_close"
    end

    __fisher_run_commands \
        "Downloading fisherman to $fisher_home" \
        "git clone --quiet --depth 1 $fisher_remote_uri $fisher_home"


    set -l home ~

    __fisher_run_commands \
        "Installing fisherman to $fisher_config" \
        "
            set -e fish_greeting
            
            mkdir -p $fisher_config/{cache,functions,completions,conf.d,man}

            mkdir -p $fish_config
            pushd $fish_config

            touch config.fish

            echo 'set -g fisher_home $fisher_home' | sed 's|/\$||;s|$home|~|' >> fisherconf
            echo 'set -g fisher_config $fisher_config' | sed 's|$home|~|' >> fisherconf
            echo 'source \$fisher_home/config.fish' >> fisherconf

            command awk 'FNR==NR{ print; a[\$0]; next } !(\$0 in a) || /^\$/' config.fish fisherconf > config.fish.tmp
            command mv config.fish.tmp config.fish
            command rm fisherconf

            fish -c '__fisher_index_update 0'
        "

    set -l gray (set_color aaa)

    printf " $fisher_check_symbol ""$gray"" Done! Enter $fisherman""``fisher``""$fisher_color_close ""$gray""to get started\n\n"

    printf " $fisher_arrow_symbol Plugins    "$fisher_color_uline"http://plugins.fisherman.sh$fisher_color_close\n"
    printf " $fisher_arrow_symbol Community  "$fisher_color_uline"http://slack.fisherman.sh$fisher_color_close\n"

    if set -q CI
        exit
    end

    exec fish < /dev/tty
end

set -g fisher_color_param (set_color green)
set -g fisher_color_uline (set_color -u)
set -g fisher_color_error (set_color red)
set -g fisher_color_close (set_color normal)

set -g fisher_check_symbol $fisher_color_param"✔"$fisher_color_close
set -g fisher_error_symbol $fisher_color_error"✘"$fisher_color_close
set -g fisher_arrow_symbol $fisher_color_param"▸"$fisher_color_close

set -g fisher_remote_uri "https://github.com/fisherman/fisherman"

__fisher_install_fisherman