-- Copyright © by Jeff Foley 2017-2023. All rights reserved.
-- Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file.
-- SPDX-License-Identifier: Apache-2.0

local json = require("json")

name = "IPdata"
type = "api"

function start()
    set_rate_limit(1)
end

function check()
    local c
    local cfg = datasrc_config()
    if (cfg ~= nil) then
        c = cfg.credentials
    end

    if (c ~= nil and c.key ~= nil and c.key ~= "") then
        return true
    end
    return false
end

function asn(ctx, addr, asn)
    if (addr == "") then
        return
    end

    local c
    local cfg = datasrc_config()
    if (cfg ~= nil) then
        c = cfg.credentials
    end

    if (c == nil or c.key == nil or c.key == "") then
        return
    end

    local resp, err = request(ctx, {['url']=build_url(addr, c.key)})
    if (err ~= nil and err ~= "") then
        log(ctx, "asn request to service failed: " .. err)
        return
    elseif (resp.status_code < 200 or resp.status_code >= 400) then
        log(ctx, "asn request to service returned with status: " .. resp.status)
        return
    end

    local d = json.decode(resp.body)
    if (d == nil) then
        log(ctx, "failed to decode the JSON response")
        return
    elseif (d.asn == nil or d.name == nil or d.route == nil) then
        return
    end

    new_asn(ctx, {
        ['addr']=addr,
        ['asn']=tonumber(d.asn:gsub(3)),
        ['desc']=d.name,
        ['prefix']=d.route,
    })
end

function build_url(addr, key)
    return "https://api.ipdata.co/" .. addr .. "/asn?api-key=" .. key
end