# Copyright (C) 2026 Rootiest
# SPDX-License-Identifier: AGPL-3.0-or-later

# SYNOPSIS
#   __fish_config_sync_logging
#
# DESCRIPTION
#   Synchronises C5 logging state: creates or removes the Kitty sentinel
#   file ($XDG_CONFIG_HOME/fish/.logging_disabled), generates or removes the
#   paru/yay AUR-helper log wrappers, and starts or stops tmux pipe-pane
#   capture for the current pane — all based on the combined value of
#   __fish_config_opinionated (master) and __fish_config_op_logging (C5).
#   Called by --on-variable event handlers whenever either variable changes.
#   Safe to call at any time; wrapper removal only affects files bearing
#   the generated version-marker comment.
#
# RETURNS
#   0  Always
#
# EXAMPLE
#   __fish_config_sync_logging
function __fish_config_sync_logging --description 'Sync C5 logging state: sentinel file, paru/yay wrappers, and tmux pipe-pane'
    set -l config_home $XDG_CONFIG_HOME
    if test -z "$config_home"
        set config_home "$HOME/.config"
    end
    set -l sentinel "$config_home/fish/.logging_disabled"
    set -l paru_wrapper "$HOME/.local/bin/paru"
    set -l yay_wrapper "$HOME/.local/bin/yay"
    set -l wrapper_version 1

    if __fish_config_op_enabled __fish_config_op_logging
        # Logging enabled: remove sentinel and regenerate wrappers if binaries exist
        rm -f $sentinel

        # Restart tmux pipe-pane for the current pane if inside tmux
        _tmux_pipe_log

        if test -x /usr/bin/paru
            mkdir -p (dirname $paru_wrapper)
            printf '%s\n' \
                '#!/usr/bin/env bash' \
                "# paru-wrapper-version: $wrapper_version" \
                '# Auto-generated by conf.d/paru-wrapper.fish — do not edit by hand.' \
                '# Tees paru output to a timestamped log file and prunes old ones.' \
                'set -o pipefail' \
                '' \
                'log_dir="${SCROLLBACK_HISTORY_DIR:-$HOME/.terminal_history}"' \
                'mkdir -p "$log_dir"' \
                'log_file="$log_dir/paru_$(date +%Y-%m-%d_%H-%M-%S).log"' \
                '' \
                '/usr/bin/paru "$@" 2>&1 | tee "$log_file"' \
                '' \
                'max_files="${SCROLLBACK_HISTORY_MAX_FILES:-100}"' \
                'mapfile -t logs < <(ls -1t "$log_dir"/paru_*.log 2>/dev/null)' \
                'excess=$(( ${#logs[@]} - max_files ))' \
                'for (( i = ${#logs[@]} - 1; i >= ${#logs[@]} - excess && i >= 0; i-- )); do' \
                '    rm -f "${logs[$i]}"' \
                'done' \
                >$paru_wrapper
            chmod +x $paru_wrapper
        end

        if test -x /usr/bin/yay
            mkdir -p (dirname $yay_wrapper)
            printf '%s\n' \
                '#!/usr/bin/env bash' \
                "# yay-wrapper-version: $wrapper_version" \
                '# Auto-generated by conf.d/yay-wrapper.fish — do not edit by hand.' \
                '# Tees yay output to a timestamped log file and prunes old ones.' \
                'set -o pipefail' \
                '' \
                'log_dir="${SCROLLBACK_HISTORY_DIR:-$HOME/.terminal_history}"' \
                'mkdir -p "$log_dir"' \
                'log_file="$log_dir/yay_$(date +%Y-%m-%d_%H-%M-%S).log"' \
                '' \
                '/usr/bin/yay "$@" 2>&1 | tee "$log_file"' \
                '' \
                'max_files="${SCROLLBACK_HISTORY_MAX_FILES:-100}"' \
                'mapfile -t logs < <(ls -1t "$log_dir"/yay_*.log 2>/dev/null)' \
                'excess=$(( ${#logs[@]} - max_files ))' \
                'for (( i = ${#logs[@]} - 1; i >= ${#logs[@]} - excess && i >= 0; i-- )); do' \
                '    rm -f "${logs[$i]}"' \
                'done' \
                >$yay_wrapper
            chmod +x $yay_wrapper
        end
    else
        # Logging disabled: create sentinel and remove any generated wrappers
        mkdir -p (dirname $sentinel)
        touch $sentinel

        if test -f $paru_wrapper
            and grep -q "# paru-wrapper-version:" $paru_wrapper 2>/dev/null
            rm -f $paru_wrapper
        end

        if test -f $yay_wrapper
            and grep -q "# yay-wrapper-version:" $yay_wrapper 2>/dev/null
            rm -f $yay_wrapper
        end

        # Stop tmux pipe-pane for the current pane if inside tmux
        if set -q TMUX
            tmux pipe-pane 2>/dev/null
        end
    end
end