diff --git a/main/todoist-widget.lua b/main/todoist-widget.lua
new file mode 100644
index 0000000..be06cb1
--- /dev/null
+++ b/main/todoist-widget.lua
@@ -0,0 +1,830 @@
+-- type = "widget"
+-- name = "Todoist"
+-- description = "Integration with Todoist"
+-- data_source = "https://todoist.com/app/"
+-- author = "Timo Peters & Andrey Gavrilov"
+-- aio_version = "4.4.1-beta11"
+-- version = "2.3
+
+-- modules
+local json = require "json"
+local fmt = require "fmt"
+local md_colors = require "md_colors"
+
+-- constants
+local dot = "⬤ "
+local exclamation = "❗"
+local today_meta = "<!--meta:today-->"
+local overdue_meta = "<!--meta:overdue-->"
+local hour = 60 * 60
+local day = 24 * hour
+local week = 7 * day
+local decay_time = 6 * hour
+local colors = {
+    md_colors.red_500,
+    md_colors.orange_500,
+    md_colors.blue_500,
+}
+
+-- vars
+local projects = {}
+local sections = {}
+local tasks = {}
+local dialog_id = ""
+local lines_id = {}
+local task = 0
+
+function on_alarm()
+    -- settings format: { "token", project_id }
+
+    if next(settings:get()) == nil or settings:get()[1] == "" then
+        settings:set({"", 0})
+    end
+
+    local token = settings:get()[1]
+    if token == "" then
+        ui:show_text("Tap to enter your API token!")
+        return
+    end
+
+    api_set_token(token)
+    api_get_projects()
+end
+
+function on_network_result_projects(res)
+    files:write("todoist_projects", res)
+    api_get_sections()
+end
+
+function on_network_result_sections(res)
+    files:write("todoist_sections", res)
+    api_get_tasks()
+end
+
+function on_network_result_tasks(res, err)
+    files:write("todoist_tasks", res)
+    files:write("todoist_time", os.time())
+    on_resume()
+end
+
+function on_resume()
+    if settings:get()[1] == "" then
+        on_alarm()
+        return
+    end
+
+    if not files:read("todoist_projects") then
+        files:write("todoist_projects", json.encode({}))
+    end
+    if not files:read("todoist_sections") then
+        files:write("todoist_sections", json.encode({}))
+    end
+    if not files:read("todoist_tasks") then
+        files:write("todoist_tasks", json.encode({}))
+    end
+
+    projects = json.decode(files:read("todoist_projects"))
+    sections = json.decode(files:read("todoist_sections"))
+    tasks = json.decode(files:read("todoist_tasks"))
+
+    redraw()
+end
+
+function on_click(idx)
+    if settings:get()[1] == "" then
+        dialog_id = "settings"
+        ui:show_edit_dialog("Enter your API token")
+    elseif idx == 1 then
+        select_project()
+    elseif idx == #lines_id then
+        create_task()
+    else
+        open_task(lines_id[idx])
+    end
+end
+
+function select_project()
+    local tab = {}
+    table.insert(tab, "All projects")
+    for i,v in ipairs(projects) do
+        table.insert(tab, v.name)
+    end
+
+    dialog_id = "projects"
+    ui:show_radio_dialog("Select project", tab, get_project_idx() + 1)
+end
+
+function on_dialog_projects(res)
+    local args = settings:get()
+
+    if res > 1 then
+        args[2] = projects[res-1].id
+    else
+        args[2] = 0
+    end
+
+    settings:set(args)
+    on_resume()
+end
+
+function get_project_idx()
+    local project = tonumber(settings:get()[2])
+    for i,v in ipairs(projects) do
+        if project == v.id then
+            return i
+        end
+    end
+    return 0
+end
+
+function on_settings()
+    dialog_id = "settings"
+    ui:show_edit_dialog("Enter your API token", "", settings:get()[1])
+end
+
+function on_dialog_settings(res)
+    local args = settings:get()
+    args[1] = res
+    settings:set(args)
+    on_alarm()
+end
+
+function redraw()
+    local project_name = ""
+    local first_line = ""
+    local lines = {}
+    local tasks = {}
+    lines_id = {}
+
+    local project_id = tonumber(settings:get()[2])
+    local project_name = fmt.bold(get_project_name(project_id))
+    --project_name = fmt.colored(project_name, get_project_color(project_id))
+
+    if os.time() - files:read("todoist_time") > decay_time then
+        first_line = project_name.." (outdated)"
+    else
+        first_line = project_name
+    end
+
+    table.insert(lines_id, project_id)
+
+    tasks = insert_tasks(tasks, project_id, 0)
+
+    for i,v in ipairs(sections) do
+        tasks = insert_tasks(tasks, project_id, v.id)
+    end
+
+    table.insert(lines_id, 0)
+
+    table.insert(lines, first_line)
+    concat_tables(lines, tasks)
+    table.insert(lines, fmt.secondary("Add task"))
+
+    local today_str = "empty"
+
+    if #tasks > 0 then
+        today_str = "today: "..get_today_tasks_num(tasks)
+    end
+
+    local overdue_str = ""
+    local overdue_num = get_overdue_tasks_num(tasks)
+
+    if (overdue_num > 0) then
+        overdue_str = ", "..fmt.red("overdue: "..get_overdue_tasks_num(tasks))
+    end
+
+    local folded_str = project_name.." ("..today_str..overdue_str..")"
+
+    ui:show_lines(lines, nil, folded_str)
+end
+
+function get_today_tasks_num(tasks)
+    return get_tasks_num_with_meta(tasks, today_meta)
+end
+
+function get_overdue_tasks_num(tasks)
+    return get_tasks_num_with_meta(tasks, overdue_meta)
+end
+
+function get_tasks_num_with_meta(tasks, meta)
+    local num = 0
+    for i,v in ipairs(tasks) do
+        if v:find(meta, 1, true) then
+            num = num + 1
+        end
+    end
+
+    return num
+end
+
+function get_project_name(project_id)
+    local project = get_project(project_id)
+
+    if project ~= nil then
+        return project.name
+    else
+        return "All projects"
+    end
+end
+
+function get_project_color(project_id)
+    local project = get_project(project_id)
+
+    if project ~= nil then
+        return todoist_colors[project.color]
+    else
+        return fmt.primary()
+    end
+end
+
+function get_section_name(id)
+    for i,v in ipairs(sections) do
+        if v.id == id then
+            return v.name
+        end
+    end
+end
+
+function insert_tasks(tab, pr, sec)
+    local is_sec = true
+
+    table.sort(tasks, function (a,b)
+        return a.order < b.order
+    end)
+
+    for i,v in ipairs(tasks) do
+        if ((pr == v.project_id) or (pr == 0)) and (sec == v.section_id) and (not v.parent) and not v.completed then
+            if is_sec and sec ~= 0 then
+                table.insert(tab, "<b><i>" .. get_section_name(sec) .. "</i></b>")
+                table.insert(lines_id, sec)
+                is_sec = false
+            end
+
+            local line = task_text(v)..task_date(v)
+
+            table.insert(tab, "%%mkd%%"..line)
+            table.insert(lines_id, v.id)
+
+            tab = insert_subtasks(tab, v.id, 1)
+        end
+    end
+    return tab
+end
+
+function insert_subtasks(tab, id, lev)
+    local curr_time = os.time()
+
+    for i,v in ipairs(tasks) do
+        if (v.parent_id == id) and not v.completed then
+            local line = task_text(v)..task_date(v)
+
+            for i = 1, lev do
+                line = "&nbsp;&nbsp;&nbsp;&nbsp;"..line
+            end
+
+            table.insert(tab, "%%mkd%%"..line)
+            table.insert(lines_id, v.id)
+
+            tab = insert_subtasks(tab, v.id, lev + 1)
+        end
+    end
+    return tab
+end
+
+function open_task(task_id)
+    local t = find_task(task_id)
+    if t == nil then return end
+
+    dialog_id = "task"
+    task = t.id
+
+    local color = 6
+    if t.priority > 1 then
+        color = 5 - t.priority
+    end
+
+    local text = t.content
+    if t.description ~= nil then
+        text = t.content.."\n"..t.description
+    end
+
+    ui:show_rich_editor{
+        text = text,
+        date = iso8601_datetime_to_local(t.created),
+        due_date = parse_due_date(t.due),
+        colors = colors,
+        color = color,
+        new = false
+    }
+end
+
+function on_dialog_task(res)
+    if res == -1 then
+        api_delete_task(task)
+    else
+        local body = create_task_json(res)
+        api_edit_task(task, body)
+    end
+end
+
+function create_task()
+    dialog_id = "create"
+
+    ui:show_rich_editor{
+        due_date = 0,
+        colors = colors,
+        color = 6
+    }
+end
+
+function on_dialog_create(res)
+    local project = tonumber(settings:get()[2])
+    local body = create_task_json(res, project)
+
+    api_create_task(body)
+end
+
+function on_long_click(idx)
+    open_context_menu(lines_id[idx])
+end
+
+function open_context_menu(id)
+    for i,v in ipairs(tasks) do
+        if v.id == id then
+            dialog_id = "task"
+            task = v.id
+
+            local menu = {
+                { "check", "Done" },
+                { "trash", "Delete" },
+                { "share", "Share" },
+            }
+
+            if v.due ~= nil then
+                if v.due.datetime ~= nil then
+                    concat_tables(menu, {
+                        { "clock", "Add hour" },
+                        { "clock", "Add day" },
+                        { "clock", "Add week" },
+                        { "clock", "Add month" },
+                    })
+                elseif v.due.date ~= nil then
+                    concat_tables(menu, {
+                        { "ban", "Add hour" },
+                        { "clock", "Add day" },
+                        { "clock", "Add week" },
+                        { "clock", "Add month" },
+                    })
+                end
+            end
+
+            ui:show_context_menu(menu)
+            return
+        end
+    end
+    for i,v in ipairs(sections) do
+        if v.id == id then
+            dialog_id = "section"
+            task = v.id
+            ui:show_context_menu{
+                { "trash", "Delete" }
+            }
+            return
+        end
+    end
+    for i,v in ipairs(projects) do
+        if (v.id == id) and (get_project_name(id) ~= "Inbox") then
+            dialog_id = "project"
+            task = v.id
+            ui:show_context_menu{
+                { "trash", "Delete" }
+            }
+            return
+        end
+    end
+
+    ui:show_context_menu{
+        { "repeat", "Refresh" }
+    }
+end
+
+function on_context_menu_click(idx)
+    if dialog_id == "task" then
+        if idx == 1 then
+            api_close_task(task)
+        elseif idx == 2 then
+            api_delete_task(task)
+        elseif idx == 3 then
+            share_task(task)
+        elseif idx == 4 then
+            increase_task_time(task, hour)
+        elseif idx == 5 then
+            increase_task_time(task, day)
+        elseif idx == 6 then
+            increase_task_time(task, week)
+        elseif idx == 7 then
+            increase_task_time(task, "month")
+        end
+    elseif dialog_id == "section" then
+        api_delete_section(task)
+    elseif dialog_id == "project" then
+        api_delete_project(task)
+    else
+        on_alarm()
+    end
+end
+
+function increase_task_time(task_id, added)
+    local task = find_task(task_id)
+    local date = parse_due_date(task.due)
+    local new_date = 0
+
+    if added == "month" then
+        new_date = add_month(date)
+    else
+        new_date = date + added
+    end
+
+    local body = edit_task_time_json(task, new_date)
+    api_edit_task(task_id, body)
+end
+
+function share_task(task_id)
+    local task = find_task(task_id)
+    if task == nil then return end
+
+    system:share_text(task.content)
+end
+
+function on_dialog_action(res)
+    if res == -1 and dialog_id ~= "task" then
+        return
+    end
+
+    if dialog_id == "settings" then
+        on_dialog_settings(res)
+    elseif dialog_id == "projects" then
+        on_dialog_projects(res)
+    elseif dialog_id == "task" then
+        on_dialog_task(res)
+    elseif dialog_id == "create" then
+        on_dialog_create(res)
+    end
+end
+
+function on_network_result_close(res, err)
+    if err == 204 then
+        ui:show_toast("Task closed!")
+        on_alarm()
+        return
+    end
+
+    ui:show_toast("There was an error closing the task!")
+end
+
+function on_network_result_delete(res, err)
+    if err == 204 then
+        ui:show_toast("Task deleted!")
+        on_alarm()
+        return
+    end
+
+    ui:show_toast("There was an error deleting the task!")
+end
+
+function on_network_result_delete_sec(res, err)
+    if err == 204 then
+        ui:show_toast("Section deleted!")
+        on_alarm()
+        return
+    end
+
+    ui:show_toast("There was an error deleting the section!")
+end
+
+function on_network_result_delete_pr(res, err)
+    if err == 204 then
+        ui:show_toast("Project deleted!")
+        local args = settings:get()
+        args[2] = 0
+        settings:set(args)
+        on_alarm()
+        return
+    end
+    ui:show_toast("There was an error deleting the project!")
+end
+
+function on_network_result_create(res, err)
+    if err == 200 then
+        ui:show_toast("Task created!")
+        on_alarm()
+        return
+    end
+
+    ui:show_toast("There was an error creating the task!")
+end
+
+function on_network_result_task(res, err)
+    if err == 204 then
+        ui:show_toast("Task updated!")
+        on_alarm()
+        return
+    end
+
+    ui:show_toast("There was an error updating the task!")
+end
+
+function on_network_error_create() show_no_connection() end
+function on_network_error_task() show_no_connection() end
+function on_network_error_close() show_no_connection() end
+function on_network_error_delete() show_no_connection() end
+function on_network_error_delete_sec() show_no_connection() end
+function on_network_error_delete_pr() show_no_connection() end
+
+function show_no_connection()
+    ui:show_toast("No connection!")
+end
+
+-- Utils
+
+function concat_tables(t1, t2)
+    for _,v in ipairs(t2) do
+        table.insert(t1, v)
+    end
+end
+
+function find_task(task_id)
+    for i,v in ipairs(tasks) do
+        if v.id == task_id then
+            return v
+        end
+    end
+
+    return nil
+end
+
+function get_project(project_id)
+    for i,v in ipairs(projects) do
+        if project_id == v.id then
+            return v
+        end
+    end
+    return nil
+end
+
+function edit_task_time_json(task, date)
+    local body = {}
+
+    if task.due.datetime ~= nil then
+        body = {
+            due_datetime = to_iso8601_datetime(date)
+        }
+    else
+        body = {
+            due_date = to_iso8601_date(date)
+        }
+    end
+
+    return json.encode(body)
+end
+
+function create_task_json(res, project)
+    local text_tab = res.text:split("\n")
+    local content = text_tab[1]
+    local desc = table.concat(text_tab, "\n", 2)
+
+    local body = {
+        content = content,
+        description = desc,
+        priority = 1,
+    }
+
+    if res.color < 6 then
+        body.priority = 5 - res.color
+    end
+
+    if res.due_date ~= 0 then
+        if os.date("%H:%M", res.due_date) == "00:00" then
+            body.due_date = to_iso8601_date(res.due_date)
+        else
+            body.due_datetime = to_iso8601_datetime(res.due_date)
+        end
+    end
+
+    if project ~= nil and project > 0 then
+        body.project_id = project
+    end
+
+    return json.encode(body)
+end
+
+function task_text(v)
+    local due_date = parse_due_date(v.due)
+    local color = color_by_priority(v.priority)
+
+    return fmt.colored(dot.." "..v.content, color)
+end
+
+function task_date(v)
+    local due_date = parse_due_date(v.due)
+
+    if due_date == nil then
+        return ""
+    end
+
+    local date = ""
+    local time = ""
+    local meta = ""
+    local str_end = ""
+
+    if is_today(due_date) then
+        date = "today"
+        meta = today_meta
+    else
+        date = os.date("%d %b", due_date)
+    end
+
+    if is_all_day(due_date) then
+        time = ""
+    else
+        time = ", "..os.date("%H:%M", due_date)
+    end
+
+    if is_overdue(due_date) then
+        meta = meta..overdue_meta
+        date = fmt.red(date)
+        time = fmt.red(time)
+        str_end = exclamation
+    end
+
+    return fmt.secondary(" - "..date..time)..meta..str_end
+end
+
+function is_today(date)
+    return os.date("%d %b") == os.date("%d %b", date)
+end
+
+function is_all_day(date)
+    return os.date("%H:%M", date) == "00:00"
+end
+
+function is_overdue(due_date)
+    if due_date == nil then return end
+
+    if is_all_day(due_date) then
+        return due_date + day < os.time()
+    else
+        return due_date < os.time()
+    end
+end
+
+function color_by_priority(priority)
+    local color = ui:get_colors().primary_text
+
+    if priority > 1 then
+        color = colors[5 - priority]
+    end
+
+    return color
+end
+
+function parse_due_date(due)
+    if due ~= nil then
+        if due.datetime ~= nil then
+            return iso8601_datetime_to_local(due.datetime)
+        elseif due.date ~= nil then
+            return parse_iso8601_date(due.date)
+        end
+    end
+
+    return nil
+end
+
+function to_iso8601_datetime(date)
+    return os.date("%Y-%m-%dT%H:%M:00Z", date - system:get_tz_offset())
+end
+
+function to_iso8601_date(date)
+    return os.date("%Y-%m-%d", date)
+end
+
+function iso8601_datetime_to_local(datetime)
+    local offset = 0
+    if datetime:find('Z') then
+        offset = system:get_tz_offset()
+    end
+    return parse_iso8601_datetime(datetime) + offset
+end
+
+function parse_iso8601_datetime(json_date)
+    local pattern = "(%d+)%-(%d+)%-(%d+)%a(%d+)%:(%d+)%:([%d%.]+)([Z%+%-]?)(%d?%d?)%:?(%d?%d?)"
+    local year, month, day, hour, minute,
+        seconds, offsetsign, offsethour, offsetmin = json_date:match(pattern)
+    local timestamp = os.time{year = year, month = month,
+        day = day, hour = hour, min = minute, sec = seconds}
+    local offset = 0
+    if offsetsign ~= '' and offsetsign ~= 'Z' then
+      offset = tonumber(offsethour) * 60 + tonumber(offsetmin)
+      if xoffset == "-" then offset = offset * -1 end
+    end
+
+    return timestamp + offset * 60
+end
+
+function parse_iso8601_date(json_date)
+    local pattern = "(%d+)%-(%d+)%-(%d+)"
+    local year, month, day, hour = json_date:match(pattern)
+    return os.time{year = year, month = month, day = day, hour = 0, min = 0, sec = 0}
+end
+
+function add_month(date)
+    local date_tab = os.date("*t", date)
+
+    if date_tab.month == 12 then
+        date_tab.month = 1
+        date_tab.year = date_tab.year + 1
+    else
+        date_tab.month = date_tab.month + 1
+    end
+
+    local max_days = get_days_in_month(date_tab.month, date_tab.year)
+
+    if date_tab.day > max_days then
+        date_tab.day = max_days
+    end
+
+    return os.time(date_tab)
+end
+
+function get_days_in_month(mnth, yr)
+    return os.date('*t',os.time{year=yr,month=mnth+1,day=0})['day']
+end
+
+-- Todoist API
+
+local base_uri = "https://api.todoist.com/rest/v1/"
+
+function api_set_token(token)
+    http:set_headers{ "Authorization: Bearer "..token }
+end
+
+function api_get_projects()
+    http:get(base_uri.."projects", "projects")
+end
+
+function api_get_sections()
+    http:get(base_uri.."sections", "sections")
+end
+
+function api_get_tasks()
+    http:get(base_uri.."tasks", "tasks")
+end
+
+function api_create_task(body)
+    http:post(base_uri.."tasks/", body, "application/json", "create")
+end
+
+function api_delete_task(task_id)
+    http:delete(base_uri.."tasks/"..task_id, "delete")
+end
+
+function api_edit_task(task_id, body)
+    http:post(base_uri.."tasks/"..task_id, body, "application/json", "task")
+end
+
+function api_close_task(task_id)
+    http:post(base_uri.."tasks/"..task_id.."/close", "", "application/json", "close")
+end
+
+function api_delete_section(task_id)
+    http:delete(base_uri.."sections/"..task_id, "delete_sec")
+end
+
+function api_delete_project(task_id)
+    http:delete(base_uri.."projects/"..task_id, "delete_pr")
+end
+
+-- Todoist colors
+
+todoist_colors = {
+    [30] = "#b8256f",
+    [31] = "#db4035",
+    [32] = "#ff9933",
+    [33] = "#fad000",
+    [34] = "#afb83b",
+    [35] = "#7ecc49",
+    [36] = "#299438",
+    [37] = "#6accbc",
+    [38] = "#158fad",
+    [39] = "#14aaf5",
+    [40] = "#96c3eb",
+    [41] = "#4073ff",
+    [42] = "#884dff",
+    [43] = "#af38eb",
+    [44] = "#eb96eb",
+    [45] = "#e05194",
+    [46] = "#ff8d85",
+    [47] = "#808080",
+    [48] = "#b8b8b8",
+    [49] = "#ccac93",
+}