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{ pkgs, ... }:
let
  unicode = x: builtins.fromJSON ''"${x}"'';
  script = pkgs.writeShellApplication {
    name = "jj-prompt";
    runtimeInputs = [ pkgs.jujutsu ];
    text =
      let
        bookmarkMax = 10;
        tagMax = 10;
        descriptionMax = 24;
      in
      ''
        jj log -r@ -n1 --ignore-working-copy --no-graph --color never -T '
                separate(" ",
                  bookmarks.map(|x| if(
                    x.name().substr(0, ${builtins.toString bookmarkMax}).starts_with(x.name()),
                    "󰃀 " ++ x.name().substr(0, ${builtins.toString bookmarkMax}),
                    "󰃀 " ++ x.name().substr(0, ${builtins.toString (bookmarkMax - 1)}) ++ "…")
                  ).join(" "),
                  tags.map(|x| if(
                    x.name().substr(0, ${builtins.toString tagMax}).starts_with(x.name()),
                    "󰓹 " ++ x.name().substr(0, ${builtins.toString tagMax}),
                    "󰓹 " ++ x.name().substr(0, ${builtins.toString (tagMax - 1)}) ++ "…")
                  ).join(" "),
                  if(
                    description.first_line().substr(0, ${builtins.toString descriptionMax}).starts_with(description.first_line()),
                    "󰍡 " ++ description.first_line().substr(0, ${builtins.toString descriptionMax}),
                    "󰍡 " ++ description.first_line().substr(0, ${
                      builtins.toString (descriptionMax - 1)
                    }) ++ "…"
                  ),
                  "•",
                  change_id.shortest(),
                  commit_id.shortest(),
                  if(empty, "(empty)"),
                  if(conflict, "(conflict)"),
                  if(divergent, "(divergent)"),
                  if(hidden, "(hidden)"),
                )
              '
      '';
  };
in
{
  programs.oh-my-posh = {
    enable = true;
    settings = {
      "$schema" = "https://raw.githubusercontent.com/JanDeDobbeleer/oh-my-posh/main/themes/schema.json";
      blocks = [
        {
          alignment = "left";
          segments = [
            {
              background = "p:lavender";
              foreground = "p:black";
              leading_diamond = unicode "\\ue0b6";
              properties = {
                display_host = false;
              };
              style = "diamond";
              template = " {{ if .SSHSession }}${unicode "\\udb80\\udf18"} {{ end }}{{ if .Env.IN_NIX_SHELL }}${unicode "\\udb84\\udd05"} {{ end }}{{ .UserName }}@{{ .HostName }} ";
              trailing_diamond = unicode "\\ue0b0";
              type = "session";
            }
            {
              background = "p:orange";
              foreground = "p:black";
              powerline_symbol = unicode "\\ue0b0";
              properties = {
                home_icon = "~";
                style = "folder";
              };
              style = "powerline";
              template = " ${unicode "\\ue613"} {{ path .Path .Location }} ";
              type = "path";
            }
            {
              background = "p:green";
              background_templates = [
                "{{ if or (.Working.Changed) (.Staging.Changed) }}p:yellow{{ end }}"
                "{{ if and (gt .Ahead 0) (gt .Behind 0) }}p:red{{ end }}"
                "{{ if gt .Ahead 0 }}#49416D{{ end }}"
                "{{ if gt .Behind 0 }}#7A306C{{ end }}"
              ];
              foreground = "p:black";
              foreground_templates = [
                "{{ if or (.Working.Changed) (.Staging.Changed) }}p:black{{ end }}"
                "{{ if and (gt .Ahead 0) (gt .Behind 0) }}p:white{{ end }}"
                "{{ if gt .Ahead 0 }}p:white{{ end }}"
              ];
              powerline_symbol = unicode "\\ue0b0";
              properties = {
                branch_max_length = 25;
                fetch_status = true;
                fetch_upstream_icon = true;
                git_icon = unicode "\\ue702";
                github_icon = unicode "\\uf408";
                upstream_icons = {
                  "codeberg.org" = unicode "\\ue2a6";
                  "git.jojodev.com" = unicode "\\udb83\\udd9e";
                  "gitea.com" = unicode "\\udb83\\udd9e";
                };
              };
              style = "powerline";
              template = "{{ if not (glob \".jj\")}} {{ if .UpstreamURL }}{{ url .UpstreamIcon .UpstreamURL }} {{ end }}{{ .HEAD }}{{if .BranchStatus }} {{ .BranchStatus }}{{ end }}{{ if .Working.Changed }} ${unicode "\\uf044"} {{ .Working.String }}{{ end }}{{ if .Staging.Changed }} ${unicode "\\uf046"} {{ .Staging.String }}{{ end }} {{ end }}";
              type = "git";
            }
            {
              background = "p:green";
              foreground = "p:black";
              powerline_symbol = unicode "\\ue0b0";
              properties = {
                script = "${script}/bin/jj-prompt";
              };
              style = "powerline";
              template = "{{ if (glob \".jj\")}} {{ .Output }} {{ end }}";
              type = "command";
            }
            {
              background = "p:blue";
              background_templates = [ "{{ if gt .Code 0 }}p:red{{ end }}" ];
              foreground = "p:black";
              leading_diamond = "<transparent,background>${unicode "\\ue0b0"}</>";
              properties = {
                always_enabled = true;
              };
              style = "diamond";
              template = " {{ if gt .Code 0 }}${unicode "\\uf00d"}{{ else }}${unicode "\\uf00c"}{{ end }} ";
              trailing_diamond = unicode "\\ue0b4";
              type = "exit";
            }
          ];
          type = "prompt";
        }
      ];
      console_title_template = "{{ .Folder }}";
      final_space = true;
      palette = {
        black = "#1E1E1E";
        blue = "#89B4FA";
        green = "#A6E3A1";
        lavender = "#B4BEFE";
        orange = "#FAB387";
        red = "#F38BA8";
        white = "#CDD6F4";
        yellow = "#F9E2AF";
      };
      version = 2;
    };
  };
}