# Description:
#  Query and interact with your Quandora Q&A knowledge base.
#
# Dependencies:
#   None
#
# Configuration:
#   HUBOT_QUANDORA_DOMAIN
#   HUBOT_QUANDORA_USER
#   HUBOT_QUANDORA_PASSWD
#
# Commands:
#   hubot (q|ask|quandora query) <text> - search text in Quandora
#   hubot qs <n> - display question <n> after a search
#   hubot (qd|quandora domain) - display configured quandora domain
#
# Author:
#   b6

quandora_domain = process.env.HUBOT_QUANDORA_DOMAIN or ""
console.error("Quandora: no domain defined, you need to set HUBOT_QUANDORA_DOMAIN") if quandora_domain == ""

api_url = "https://#{process.env.HUBOT_QUANDORA_DOMAIN}.quandora.com/m/json"
api_user = process.env.HUBOT_QUANDORA_USER or ""
api_passwd = process.env.HUBOT_QUANDORA_PASSWD or ""
if (api_user && api_passwd)
    api_auth = "Basic " + new Buffer(api_user + ':' + api_passwd).toString('base64')
    console.log("Quandora: Got Auth Data, going as " + api_user)
else
    console.log("No auth data: going anonymous")
    api_auth = ""


module.exports = (robot) ->
    robot.respond /(ask|qs|quandora query) (.+)/i, (msg) -> 
        question = msg.match[2]
        msg.http(api_url + "/search")
            .headers("Authorization": api_auth)
            .query({q: question})
            .get() (err, res, body)  ->
                console.log(err)
                console.log(body)
                response = JSON.parse(body)
                if response.type == "question-search-result"
                    robot.brain.data.quandora_latests = response.data.result
                    text = ["Top Matching questions in Quandora:"]
                    i = 0
                    response.data.result.forEach (q) -> 
                        i++
                        qurl = make_qurl(q.uid)
                        text.push "#{i}. #{q.title} [re: #{q.answers}] <#{qurl}>"
                    msg.send(text.join "\n")
                else if response.type == "error"
                    msg.send("Quandora lookup error: #{response.data.message}")
 
    robot.respond /(q|quandora) ([0-9])/i, (msg) -> 
        i = msg.match[2] - 1
        q = robot.brain.data.quandora_latests[i] or null
        if q
            qcontent = [q.title, q.summary, "#{q.votes} votes / #{q.answers} answers",
                    make_qurl(q.uid)]
            msg.send(qcontent.join("\n"))
        else
            msg.send("Can't find question #{i + 1}")

    robot.respond /(quandora domain|qd)/i, (msg) -> 
        msg.send("Quandora Domain: #{quandora_domain}")


make_qurl = (uid) ->
    app_url = "https://app.quandora.com/"
    app_url + "object/" + uid