------------------------------
-- @name    ComicK
-- @url     https://[Log in to view URL]
-- @author  Sravan Balaji
-- @license MIT
------------------------------




----- IMPORTS -----
Http = require('http')
Json = require('json')
--- END IMPORTS ---




----- VARIABLES -----
Client = Http.client({ timeout = 20 })
ApiBase = 'https://[Log in to view URL]'
ImageBase = 'https://[Log in to view URL]'
Limit = 50
Lang = 'ru' -- Language: en = english, fr = french, etc.
Order = 1 -- Chapter Order: 0 = descending, 1 = ascending
--- END VARIABLES ---



----- MAIN -----

--- Searches for manga with given query.
-- @param query Query to search for
-- @return Table of tables with the following fields: name, url
function SearchManga(query)
    local request_url = ApiBase .. '/v1.0/search?&q=' .. query
    local request = Http.request('GET', request_url)
    local result = Client:do_request(request)
    local result_body = Json.decode(result['body'])

    local mangas = {}
    local i = 1

    for _, val in pairs(result_body) do
        local title = val['title']

        if title ~= nil then
            local id = val['id']
            local link = ApiBase .. '/comic/' .. tostring(id) .. '/chapter'
            local manga = { url = link, name = title }

            mangas[i] = manga
            i = i + 1
        end
    end

    return mangas
end

--- Gets the list of all manga chapters.
-- @param mangaURL URL of the manga
-- @return Table of tables with the following fields: name, url
function MangaChapters(mangaURL)
    local request_url = mangaURL .. '?lang=' .. Lang .. '&limit=' .. Limit .. '&chap-order=' .. Order
    local chapters = {}
    local i = 1

    local request = Http.request('GET', request_url)
    local result = Client:do_request(request)
    local result_body = Json.decode(result['body'])
    local num_chapters = result_body['total']
    local num_pages = math.ceil(num_chapters / Limit)

    for j = 1, num_pages do
        request = Http.request('GET', request_url .. '&page=' .. j)
        result = Client:do_request(request)
        result_body = Json.decode(result['body'])

        for _, val in pairs(result_body['chapters']) do
            local hid = val['hid']
            local num = val['chap']
            if num == nil then
                num = 0
            end

            local volume = tostring(val['vol'])
            if volume ~= "nil" then
                volume = "Vol." .. volume
            else
                volume = ""
            end
            local title = val['title']
            local chap = 'Chapter ' .. tostring(num)
            local group_name = val['group_name']

            if title then
                chap = chap .. ': ' .. tostring(title)
            end

            if group_name then
                chap = chap .. ' ['
                for key, group in pairs(group_name) do
                    if key ~= 1 then
                        chap = chap .. ', '
                    end

                    chap = chap .. tostring(group)
                end
                chap = chap .. ']'
            end

            local link = ApiBase .. '/chapter/' .. tostring(hid)
            local chapter = { url = link, name = chap, volume = volume }

            chapters[i] = chapter
            i = i + 1
        end
    end

    return chapters
end

--- Gets the list of all pages of a chapter.
-- @param chapterURL URL of the chapter
-- @return Table of tables with the following fields: url, index
function ChapterPages(chapterURL)
    local request = Http.request('GET', chapterURL)
    local result = Client:do_request(request)
    local result_body = Json.decode(result['body'])
    local chapter_table = result_body['chapter']

    local pages = {}
    local i = 1

    for key, val in pairs(chapter_table['md_images']) do
        local ind = key
        local link = ImageBase .. '/' .. val['b2key']
        local page = { url = link, index = ind }

        pages[i] = page
        i = i + 1
    end

    return pages
end

--- END MAIN ---




----- HELPERS -----
--- END HELPERS ---

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