import { dateFromInput, runJxa } from "../apple-events.js";

const LISTS_SCRIPT = String.raw`
function run() {
  const app = Application("/System/Applications/Reminders.app");
  function stringValue(value) {
    try {
      return value === null || value === undefined ? null : String(value);
    } catch (_) {
      return null;
    }
  }
  function accountName(list) {
    try {
      const container = list.container();
      return stringValue(container.name ? container.name() : container);
    } catch (_) {
      return null;
    }
  }
  return JSON.stringify(app.lists().map(function (list) {
    return {
      id: String(list.id()),
      name: String(list.name()),
      account: accountName(list),
      shared: null,
      assignmentMetadata: {
        available: null,
        note: "Apple Reminders automation does not expose shared-list participant metadata directly."
      }
    };
  }));
}`;

const REMINDERS_LIST_SCRIPT = String.raw`
function run(argv) {
  const input = JSON.parse(argv[0]);
  const app = Application("/System/Applications/Reminders.app");
  const lists = app.lists();
  const found = [];
  function stringValue(value) {
    try {
      return value === null || value === undefined ? null : String(value);
    } catch (_) {
      return null;
    }
  }
  function compact(value) {
    if (!value) return null;
    const text = String(value).trim();
    return text ? text : null;
  }
  function propertyValue(object, names) {
    for (let i = 0; i < names.length; i++) {
      try {
        const getter = object[names[i]];
        if (typeof getter !== "function") continue;
        const value = getter.call(object);
        const text = compact(stringValue(value));
        if (text && !text.startsWith("[object ")) return text;
        if (value && typeof value.name === "function") {
          const name = compact(stringValue(value.name()));
          if (name) return name;
        }
      } catch (_) {}
    }
    return null;
  }
  function assignmentHint(title, notes) {
    const titleMatch = title.match(/\(([^()\n]{2,80})\)\s*$/);
    if (titleMatch) return { assignee: titleMatch[1].trim(), source: "title" };

    const explicit = notes.match(/\b(?:assigned to|assignee)\s*:\s*([^.;,\n]{2,80})/i);
    if (explicit) return { assignee: explicit[1].trim(), source: "notes" };

    const captured = notes.match(/\bCaptured\s+\d{4}-\d{2}-\d{2},\s*([^.;,\n]{2,80})\s*[.;]/i);
    if (captured) return { assignee: captured[1].trim(), source: "notes" };

    return { assignee: null, source: null };
  }
  function assignmentFor(reminder, title, notes) {
    const nativeAssignee = propertyValue(reminder, [
      "assignedTo",
      "assignee",
      "assignment",
      "responsiblePerson",
      "principal"
    ]);
    if (nativeAssignee) {
      return {
        assignee: nativeAssignee,
        source: "remindersAutomation",
        available: true
      };
    }

    const hint = assignmentHint(title, notes);
    return {
      assignee: hint.assignee,
      source: hint.source,
      available: hint.assignee !== null
    };
  }
  for (let l = 0; l < lists.length && found.length < input.limit; l++) {
    const list = lists[l];
    const name = String(list.name());
    if (input.list && name !== input.list) continue;
    const reminders = list.reminders();
    for (let r = 0; r < reminders.length && found.length < input.limit; r++) {
      const reminder = reminders[r];
      const completed = Boolean(reminder.completed());
      if (input.completed !== null && completed !== input.completed) continue;
      let due = null;
      try {
        const value = reminder.dueDate();
        due = value ? value.toISOString() : null;
      } catch (_) {}
      const title = String(reminder.name());
      const notes = String(reminder.body() || "");
      found.push({
        id: String(reminder.id()),
        list: name,
        title: title,
        completed: completed,
        due: due,
        notes: notes,
        assignment: assignmentFor(reminder, title, notes)
      });
    }
  }
  return JSON.stringify(found);
}`;

const REMINDER_CREATE_SCRIPT = String.raw`
function run(argv) {
  const input = JSON.parse(argv[0]);
  const app = Application("/System/Applications/Reminders.app");
  const lists = app.lists();
  let destination = null;
  for (let l = 0; l < lists.length; l++) {
    if (!input.list || String(lists[l].name()) === input.list) {
      destination = lists[l];
      break;
    }
  }
  if (!destination) throw new Error("Reminders list not found");
  const properties = {name: input.title, body: input.notes || ""};
  if (input.due) properties.dueDate = new Date(input.due);
  const reminder = app.Reminder(properties);
  destination.reminders.push(reminder);
  return JSON.stringify({
    id: String(reminder.id()),
    list: String(destination.name()),
    title: String(reminder.name())
  });
}`;

export function listReminderLists() {
  return runJxa(LISTS_SCRIPT);
}

export function listReminders(input) {
  return runJxa(REMINDERS_LIST_SCRIPT, input);
}

export function createReminder(input) {
  if (input.due) {
    dateFromInput(input.due, "due");
  }
  return runJxa(REMINDER_CREATE_SCRIPT, input);
}