import { PluginSettingTab, Setting } from "obsidian";
import type { App } from "obsidian";
import type BeaverCalendarPlugin from "./main";

export type ViewMode = "list" | "calendar";
export type GroupBy = "sphere" | "project" | "status" | "due";
export type SortBy = "manual" | "priority" | "due";

export interface BeaverCalendarSettings {
  boardsFolder: string;
  archiveFolder: string;
  view: ViewMode;
  groupBy: GroupBy;
  listSort: SortBy;
  calendarSort: SortBy;
  showDone: boolean;
  includeArchive: boolean;
  railCollapsed: boolean;
  undatedCollapsed: boolean;
  /** The lane the last task was written into, so the composer opens there. */
  lastLanePath: string;
  lastLaneProject: string;
}

export const DEFAULT_SETTINGS: BeaverCalendarSettings = {
  boardsFolder: "Boards",
  archiveFolder: "archive",
  view: "list",
  groupBy: "sphere",
  listSort: "due",
  calendarSort: "priority",
  showDone: false,
  includeArchive: false,
  railCollapsed: false,
  undatedCollapsed: false,
  lastLanePath: "",
  lastLaneProject: "",
};

export function normalizeFolder(value: string): string {
  return value.trim().replace(/^\/+/u, "").replace(/\/+$/u, "");
}

export class BeaverCalendarSettingsTab extends PluginSettingTab {
  constructor(
    app: App,
    private readonly plugin: BeaverCalendarPlugin,
  ) {
    super(app, plugin);
  }

  display(): void {
    const { containerEl } = this;
    containerEl.empty();

    new Setting(containerEl)
      .setName("Boards folder")
      .setDesc(
        "Every markdown file in this folder is a sphere, and every second-level heading inside it is a project.",
      )
      .addText((text) =>
        text
          .setPlaceholder("Boards")
          .setValue(this.plugin.settings.boardsFolder)
          .onChange(async (value) => {
            this.plugin.settings.boardsFolder = normalizeFolder(value);
            await this.plugin.saveSettings();
            await this.plugin.store.reloadAll();
          }),
      );

    new Setting(containerEl)
      .setName("Archive folder")
      .setDesc(
        "A subfolder mirroring the boards folder, where the archive command " +
          "puts completed tasks: a board at Boards/work.md archives into " +
          "Boards/archive/work.md, itself a Kanban board with the same lanes. " +
          "The command also lifts a board's old *** archive section in there.",
      )
      .addText((text) =>
        text
          .setPlaceholder("archive")
          .setValue(this.plugin.settings.archiveFolder)
          .onChange(async (value) => {
            this.plugin.settings.archiveFolder =
              normalizeFolder(value) || "archive";
            await this.plugin.saveSettings();
            await this.plugin.store.reloadAll();
          }),
      );

    new Setting(containerEl)
      .setName("Include the archive")
      .setDesc(
        "Widen the show-completed toggle to reach archived tasks - both the " +
          "archive folder and whatever still sits below a board's *** " +
          "separator. With this off, show-completed only reveals completed " +
          "tasks still in their lanes. Archived tasks carry an Archive badge " +
          "instead of a project one.",
      )
      .addToggle((toggle) =>
        toggle
          .setValue(this.plugin.settings.includeArchive)
          .onChange(async (value) => {
            this.plugin.settings.includeArchive = value;
            this.plugin.store.includeArchive = value;
            await this.plugin.saveSettings();
          }),
      );

    new Setting(containerEl)
      .setName("Show completed")
      .setDesc("Completed tasks are hidden from the list and the calendar by default.")
      .addToggle((toggle) =>
        toggle
          .setValue(this.plugin.settings.showDone)
          .onChange(async (value) => {
            this.plugin.settings.showDone = value;
            this.plugin.store.showDone = value;
            await this.plugin.saveSettings();
          }),
      );
  }
}