116 lines
3.4 KiB
Lua
116 lines
3.4 KiB
Lua
-- name = "Курсы валют"
|
||
-- description = "Виджет курсов валют. Нажмите на дату чтобы изменить ее."
|
||
-- data_source = "https://github.com/fawazahmed0/currency-api#readme"
|
||
-- type = "widget"
|
||
-- author = "Andrey Gavrilov"
|
||
-- version = "1.0"
|
||
-- arguments_help = "Введите список валютных пар в формате usd:rub btc:usd"
|
||
-- arguments_default = "usd:rub eur:rub"
|
||
|
||
local sx = require "pl.stringx"
|
||
|
||
-- constants
|
||
local red_color = "#f44336"
|
||
local green_color = "#48ad47"
|
||
local text_color = ui:get_secondary_text_color()
|
||
local equals = "<font color=\""..text_color.."\"> = </font>"
|
||
|
||
-- global vars
|
||
local result_curr = ""
|
||
local tabl = {}
|
||
|
||
function on_resume()
|
||
ui:set_folding_flag(true)
|
||
ui:show_lines(tabl)
|
||
end
|
||
|
||
function on_alarm()
|
||
get_rates("latest", "curr")
|
||
end
|
||
|
||
function get_rates(loc_date,id)
|
||
http:get("https://cdn.jsdelivr.net/gh/fawazahmed0/currency-api@1/"..loc_date.."/currencies/usd.json",id)
|
||
end
|
||
|
||
function on_network_result_curr(result)
|
||
result_curr = result
|
||
|
||
local dat = ajson:get_value(result, "object string:date")
|
||
local prev_date = prev_date(dat)
|
||
|
||
get_rates(prev_date, "prev")
|
||
end
|
||
|
||
function on_network_result_prev(result)
|
||
tabl = create_tab(result)
|
||
ui:show_lines(tabl)
|
||
end
|
||
|
||
function on_click(idx)
|
||
ui:show_edit_dialog("Введите дату курсов", "Введите дату курсов в формате 2020.12.31. Пустое значение - текущая дата.")
|
||
end
|
||
|
||
function on_dialog_action(dat)
|
||
if dat == "" then dat = "latest" end
|
||
get_rates(sx.replace(dat, ".", "-"), "curr")
|
||
end
|
||
|
||
function create_tab(result)
|
||
local result_prev = result
|
||
local curs = aio:get_args()
|
||
local tab = {}
|
||
|
||
-- set title
|
||
local dat = ajson:get_value(result_curr, "object string:date")
|
||
ui:set_title(ui:get_default_title().." "..sx.replace(dat, "-", "."))
|
||
|
||
for idx, pair in ipairs(curs) do
|
||
local cur = sx.split(pair, ":")
|
||
|
||
local rate_curr1 = get_rate(result_curr, cur[1])
|
||
local rate_curr2 = get_rate(result_curr, cur[2])
|
||
local rate_prev1 = get_rate(result_prev, cur[1])
|
||
local rate_prev2 = get_rate(result_prev, cur[2])
|
||
|
||
local rate_curr = round(rate_curr2/rate_curr1, 4)
|
||
local rate_prev = round(rate_prev2/rate_prev1, 4)
|
||
local change = round((rate_curr-rate_prev)/rate_prev*100,2)
|
||
|
||
local line = "1 "..string.upper(cur[1])..equals..rate_curr.." "..string.upper(cur[2])
|
||
line = line..get_formatted_change_text(change)
|
||
|
||
tab[idx] = line
|
||
end
|
||
|
||
return tab
|
||
end
|
||
|
||
-- utils --
|
||
|
||
function get_prev_date(dat)
|
||
local prev_date = sx.split(dat, "-")
|
||
local prev_time = os.time{year=prev_date[1], month=prev_date[2], day=prev_date[3]} - (60*60*24)
|
||
return os.date("%Y-%m-%d", prev_time)
|
||
end
|
||
|
||
function get_rate(json, currency)
|
||
return ajson:get_value(json, "object object:usd double:"..currency)
|
||
end
|
||
|
||
function get_formatted_change_text(change)
|
||
if change > 0 then
|
||
return "<font color=\""..green_color.."\"><small> +"..change.."%</small></font>"
|
||
elseif change < 0 then
|
||
return "<font color=\""..red_color.."\"><small> "..change.."%</small></font>"
|
||
else
|
||
return "<font color=\""..text_color.."\"><small> "..change.."%</small></font>"
|
||
end
|
||
end
|
||
|
||
function round(x, n)
|
||
local n = math.pow(10, n or 0)
|
||
local x = x * n
|
||
if x >= 0 then x = math.floor(x + 0.5) else x = math.ceil(x - 0.5) end
|
||
return x / n
|
||
end
|