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