# Generic user-level (home-manager) config. Reusable across users — nothing
# user-specific here. Identity (home.username/homeDirectory/stateVersion, git
# user.name/email), host topology (SSH hosts, Syncthing peers) and personal app
# choices (grayjay, Claude Code, …) live in the inventory, not in this module.

{ config, pkgs, ... }:

let
  terminal = "foot";
  browser = "librewolf";
  editor = "nvim";
in
{
  imports = [ ./gpg.nix ./media.nix ];

  home.sessionVariables = {
    TERMINAL = terminal;
    BROWSER = browser;
    EDITOR = editor;
    # Keep $HOME clean: route node/npm out of ~ into XDG dirs.
    NODE_REPL_HISTORY = "${config.xdg.stateHome}/node_repl_history";
    NPM_CONFIG_CACHE = "${config.xdg.cacheHome}/npm";
    NPM_CONFIG_USERCONFIG = "${config.xdg.configHome}/npm/npmrc";
    # Python REPL: UTF-8 I/O, custom startup file, XDG-routed history.
    PYTHONIOENCODING = "UTF-8";
    PYTHONSTARTUP = "${config.xdg.configHome}/python/startup";
    PYTHON_HISTFILE = "${config.xdg.cacheHome}/python/history";
    # psql / wget / readline configs, XDG-routed (the rc files are declared
    # via xdg.configFile below).
    PSQLRC = "${config.xdg.configHome}/psql/rc";
    WGETRC = "${config.xdg.configHome}/wget/wgetrc";
    INPUTRC = "${config.xdg.configHome}/readline/inputrc";
    # Rust/cargo: keep registry cache, git checkouts and `cargo install` bins
    # out of ~/.cargo (the toolchain itself comes from the flake's rust devShell).
    CARGO_HOME = "${config.xdg.dataHome}/cargo";
    # Mute the harmless "Wayland does not support QWindow::requestActivate()"
    # spam Qt apps (keepassxc) print; scoped to that one log category only.
    QT_LOGGING_RULES = "qt.qpa.wayland=false";
    # GUI helper for ssh passphrase/PIN prompts. Not forced: with a tty ssh still
    # prompts inline; the helper is only used when a caller sets
    # SSH_ASKPASS_REQUIRE (e.g. a headless/agent context).
    SSH_ASKPASS = "${pkgs.ksshaskpass}/bin/ksshaskpass";
  };
  # Sets XDG_{CONFIG,DATA,CACHE}_HOME and enables xdg.configFile management.
  xdg.enable = true;

  home.packages = with pkgs; [
    librewolf
    keepassxc   # config in ~/.config/keepassxc
    # claude-code is installed by programs.claude-code below (its wrapped
    # finalPackage) — do NOT also list it here, or buildEnv conflicts on the
    # wrapper binary.
    nodejs
    highlight   # `ccat` alias: syntax-highlighted cat
    libreoffice
    ksshaskpass   # Qt GUI prompt for ssh passphrase/PIN (see SSH_ASKPASS above)
  ];

  # ---- Per-tool config files, routed into XDG dirs ---------------------
  xdg.configFile = {
    "python/startup".source = ./assets/python-startup.py;

    # psql: unlimited, per-database history file (kept out of $HOME).
    "psql/rc".text = ''
      \set HISTFILE ${config.xdg.cacheHome}/psql/history-:DBNAME
      \set HISTSIZE -1
    '';

    # wget: keep its HSTS db in the cache dir, not ~/.
    "wget/wgetrc".text = ''
      hsts-file=${config.xdg.cacheHome}/wget/hsts
    '';

    # readline: affects any libreadline program (python, psql, bash...).
    # zsh ignores it — it uses ZLE (see programs.zsh below). Binds Up/Down to
    # prefix history search with the cursor jumped to end of line.
    "readline/inputrc".text = ''
      $include /etc/inputrc
      "\C-x\C-p": history-search-backward
      "\C-x\C-n": history-search-forward
      "\e[A": "\C-x\C-p\C-e"
      "\e[B": "\C-x\C-n\C-e"
      "\eOA": "\C-x\C-p\C-e"
      "\eOB": "\C-x\C-n\C-e"
    '';
  };

  programs.home-manager.enable = true;

  programs.git = {
    enable = true;
    settings = {
      pull.rebase = true;
      init.defaultBranch = "master";

      # Detect whitespace errors; speed up untracked-file scans.
      apply.whitespace = "fix";
      core.whitespace = "space-before-tab,-indent-with-non-tab,trailing-space";
      core.untrackedCache = true;
      branch.sort = "-committerdate";
      color.ui = "auto";
      diff.renames = "copies";
      help.autocorrect = 1;
      merge.log = true;
      push = { default = "simple"; followTags = true; };
      submodule.recurse = true;

      # github: / gh: / gist: remote shorthands.
      url."git@github.com:".insteadOf = "gh:";
      url."git://github.com/".insteadOf = "github:";

      alias = {
        l = "log --pretty=oneline -n 20 --graph --abbrev-commit";
        logs = "log --show-signature";
        logo = "log --pretty=format:\"%C(auto)%h%x09%ad%x09%<(16,trunc)%an%x09%s%x09%d\"";
        s = "status -s";
        d = "!\"git diff-index --quiet HEAD -- || clear; git --no-pager diff --patch-with-stat\"";
        p = "pull --recurse-submodules";
        c = "clone --recursive";
        ca = "!git add -A && git commit -av";
        go = "!f() { git checkout -b \"$1\" 2> /dev/null || git checkout \"$1\"; }; f";
        amend = "commit --amend --reuse-message=HEAD";
        reb = "!r() { git rebase -i HEAD~$1; }; r";
        aliases = "config --get-regexp alias";
        contributors = "shortlog --summary --numbered";
        whoami = "config user.email";
        # Delete local branches already merged into the current branch.
        dm = "!git branch --merged | grep -v '\\*' | xargs -n 1 git branch -d";
      };
    };
  };

  programs.foot = {
    enable = true;
    settings = {
      main = {
        font = "JetBrainsMono Nerd Font:size=11";
        pad = "8x8";
      };
      colors-dark = {
        alpha = 0.9;
      };
    };
  };

  # App launcher ($mod+d in Hyprland). Wayland-native, launches apps detached
  # so their stderr goes to the journal, not whatever terminal you're in.
  programs.fuzzel = {
    enable = true;
    settings.main.font = "JetBrainsMono Nerd Font:size=11";
  };

  programs.fzf.enable = true;   # provides the ^f "cd into fzf dir" binding

  # direnv + nix-direnv: a project's `.envrc` with `use flake` auto-loads any
  # devShell on cd-in (and caches the eval) — general per-directory environments,
  # not tied to one language. First consumer is the shared Rust dev shell (see
  # the `devShells` comment in flake.nix). Zsh integration is on by default.
  programs.direnv = {
    enable = true;
    nix-direnv.enable = true;
  };

  programs.zsh = {
    enable = true;
    autosuggestion.enable = true;
    syntaxHighlighting.enable = true;
    enableCompletion = true;
    # Keep the completion dump in the cache dir, not ~/.zcompdump.
    completionInit = ''
      _zcd="${config.xdg.cacheHome}/zsh"; [ -d "$_zcd" ] || mkdir -p "$_zcd"
      autoload -U compinit && compinit -d "$_zcd/zcompdump"
    '';
    defaultKeymap = "viins";               # vi keybindings
    history = {
      path = "${config.xdg.cacheHome}/zsh/history";
      size = 1000000;
      save = 1000000;
      ignoreAllDups = true;   # drop older duplicate of a re-run command
      ignoreSpace = true;     # don't record space-prefixed commands
      share = true;
    };

    shellAliases = {
      vim = "nvim";
      vimdiff = "nvim -d";
      cp = "cp -iv";
      mv = "mv -iv";
      rm = "rm -vI";
      mkd = "mkdir -pv";
      ls = "ls -hN --color=auto --group-directories-first";
      grep = "grep --color=auto";
      diff = "diff --color=auto";
      ccat = "highlight --out-format=ansi";
      ka = "killall";
      g = "git";
      e = editor;
      v = editor;
    };

    # Interactive bits with no first-class HM option: prompt, autocd,
    # completion-menu styling, vi cursor shaping, and a few keybinds.
    initContent = ''
      # Colored prompt: [user@host ~]$
      autoload -U colors && colors
      PS1="%B%{$fg[red]%}[%{$fg[yellow]%}%n%{$fg[green]%}@%{$fg[blue]%}%M %{$fg[magenta]%}%~%{$fg[red]%}]%{$reset_color%}$%b "

      setopt autocd interactive_comments
      stty stop undef          # free up ctrl-s
      export KEYTIMEOUT=1

      # Completion menu: arrow-select, include dotfiles, vi keys in the menu.
      zstyle ':completion:*' menu select
      zmodload zsh/complist
      _comp_options+=(globdots)
      bindkey -M menuselect 'h' vi-backward-char
      bindkey -M menuselect 'k' vi-up-line-or-history
      bindkey -M menuselect 'l' vi-forward-char
      bindkey -M menuselect 'j' vi-down-line-or-history
      bindkey -v '^?' backward-delete-char
      bindkey '^[[P' delete-char

      # Beam cursor in insert mode, block in normal mode.
      function zle-keymap-select () {
        case $KEYMAP in
          vicmd) echo -ne '\e[1 q';;
          viins|main) echo -ne '\e[5 q';;
        esac
      }
      zle -N zle-keymap-select
      zle-line-init() { zle -K viins; echo -ne "\e[5 q"; }
      zle -N zle-line-init
      echo -ne '\e[5 q'
      preexec() { echo -ne '\e[5 q'; }

      # Edit current line in $EDITOR with ctrl-e; quick bc and fzf-cd binds.
      autoload edit-command-line; zle -N edit-command-line
      bindkey '^e' edit-command-line
      bindkey -s '^a' 'bc -lq\n'
      bindkey -s '^f' 'cd "$(dirname "$(fzf)")"\n'

      # Up/Down: search history by the text already typed before the cursor,
      # then place the cursor at the end of the matched line.
      autoload -U history-search-end
      zle -N history-beginning-search-backward-end history-search-end
      zle -N history-beginning-search-forward-end history-search-end
      bindkey "^[[A" history-beginning-search-backward-end
      bindkey "^[[B" history-beginning-search-forward-end
    '';
  };

  home.pointerCursor = {
    name = "Adwaita";
    package = pkgs.adwaita-icon-theme;
    size = 24;
    gtk.enable = true;
  };

  gtk = {
    enable = true;
    theme = {
      name = "Adwaita-dark";
      package = pkgs.gnome-themes-extra;
    };
    # Keep the GTK2 rc out of $HOME (default ~/.gtkrc-2.0). Setting this also
    # makes home-manager export GTK2_RC_FILES so GTK2 apps still find it.
    gtk2.configLocation = "${config.xdg.configHome}/gtk-2.0/gtkrc";
  };

  wayland.windowManager.hyprland = {
    enable = true;
    configType = "hyprlang";

    settings = {
      monitor = ",preferred,auto,1";

      general = {
        layout = "master";
        gaps_in = 5;
        gaps_out = 10;
        border_size = 2;
      };

      decoration = {
        rounding = 0;
        shadow.enabled = false;
        blur.enabled = false;
      };

      animations = {
        enabled = false;
      };

      input = {
        kb_layout = "de";
        follow_mouse = 1;
      };

      "$mod" = "SUPER";

      # Drag to move ($mod+LMB) / resize ($mod+RMB) any window. Needed to reach
      # oversized floating dialogs (e.g. GTK save/upload pickers) whose confirm
      # button lands off-screen on short displays.
      bindm = [
        "$mod,	mouse:272,	movewindow"
        "$mod,	mouse:273,	resizewindow"
      ];

      bind = [
        "$mod,		Return,	exec,		footclient"
        "$mod,		q,	killactive"
        "$mod SHIFT,	q,	exit"
        "$mod,		f,	fullscreen,	1"
        "$mod SHIFT,	f,	fullscreen,	0"
        "$mod,		w,	exec,		${browser}"
        "$mod,		d,	exec,		fuzzel"
        "$mod,		j,	layoutmsg,	cyclenext"
        "$mod SHIFT,	j,	layoutmsg,	swapnext"
        "$mod,		k,	layoutmsg,	cycleprev"
        "$mod SHIFT,	k,	layoutmsg,	swapprev"
        "$mod,		h,	layoutmsg,	splitratio -0.05"
        "$mod,		l,	layoutmsg,	splitratio +0.05"
      ] ++ (
        # Dynamic definitions for viewing workspaces 1 to 9 and moving windows between them.
        # References physical key codes for robustness with the SHIFT key, e.g. `code:10` instead of `1`.
        builtins.concatLists (
          builtins.genList (i:
            let target = i + 1; in [
              "$mod,		code:1${toString i}, workspace,		${toString target}"
              "$mod SHIFT,	code:1${toString i}, movetoworkspace,	${toString target}"
            ]
          ) 9
        )
      ) ++ [
        ",	XF86MonBrightnessUp,	exec,	brightnessctl set 15%+"
        ",	XF86MonBrightnessDown,	exec,	brightnessctl set 15%-"
        ",	XF86AudioMute,		exec,	wpctl set-mute @DEFAULT_AUDIO_SINK@ toggle"
        ",	XF86AudioRaiseVolume,	exec,	wpctl set-volume @DEFAULT_AUDIO_SINK@ 3%+"
        ",	XF86AudioLowerVolume,	exec,	wpctl set-volume @DEFAULT_AUDIO_SINK@ 3%-"
      ];

      exec-once = [
        "waybar"
        # foot in server/daemon mode: $mod+Return runs `footclient`, which
        # attaches to this one process → faster new-window startup, shared RAM.
        # Uses foot's default socket, which footclient also defaults to.
        # Tradeoff: if the server dies, all foot windows die with it.
        "foot --server"
        # wallpaper (see modules/media.nix): start the awww daemon, then restore
        # the persisted choice. awww keeps no state across restarts, so re-push
        # the ~/.local/share/bg symlink if it exists.
        "awww-daemon"
        "sh -c '[ -e \"$HOME/.local/share/bg\" ] && awww img \"$HOME/.local/share/bg\"'"
      ];
    };
  };

  # Notification daemon. notify-send clients (e.g. imv's info/delete toasts in
  # modules/media.nix, gpg-agent errors) need a running server on the bus.
  # Minimal to match the desktop: Nerd Font, no rounding, square border.
  # Secret Service provider (freedesktop org.freedesktop.secrets). Bare Wayland
  # session has none otherwise; apps using libsecret/qtkeychain need it.
  services.gnome-keyring.enable = true;

  services.mako = {
    enable = true;
    settings = {
      font = "JetBrainsMono Nerd Font 10";
      border-radius = 0;
      default-timeout = 5000;
    };
  };

  programs.waybar = {
    enable = true;
    settings = {
      mainBar = {
        layer = "top";
        position = "top";
        height = 28;
        modules-left = [ "hyprland/workspaces" ];
        modules-center = [ "clock" ];
        modules-right = [ "pulseaudio" "network" "battery" ];

        "hyprland/workspaces" = {
          format = "{id}";
        };

        clock = {
          format = "{:%H:%M %a %d %b}";
        };

        pulseaudio = {
          format = "{volume}% {icon}";
          format-muted = "󰝟";
          format-icons = {
            default = [ "󰕿" "󰖀" "󰕾" ];
            headphone = "󰋋";
          };
        };

        network = {
          format-wifi = "{essid} 󰖩";
          format-ethernet = "eth 󰈀";
          format-disconnected = "󰖪";
        };

        battery = {
          states = {
            warning = 30;
            critical = 15;
          };
          format = "{capacity}% {icon}";
          format-charging = "{capacity}% 󰂄";
          format-plugged = "{capacity}% 󰚥";
          format-icons = [ "󰁺" "󰁻" "󰁼" "󰁽" "󰁾" "󰁿" "󰂀" "󰂁" "󰂂" "󰁹" ];
        };
      };
    };

    style = ''
      * {
        font-family: "JetBrainsMono Nerd Font";
        font-size: 13px;
      }
      window#waybar {
        background: #222222;
        color: #bbbbbb;
      }
      #pulseaudio, #network, #battery {
        padding: 0 12px;
      }
      #battery.warning {
        color: #e5c07b;
      }
      #battery.critical {
        color: #e06c75;
      }
      #battery.charging {
        color: #98c379;
      }
    '';
  };
}