#--depends-on commands
#--depends-on config
#--require-config google-api-key
#--require-config google-search-id

import json
from src import ModuleManager, utils

URL_GOOGLESEARCH = "https://www.googleapis.com/customsearch/v1"
URL_GOOGLESUGGEST = "http://google.com/complete/search"

@utils.export("channelset", {"setting": "google-safesearch",
    "help": "Turn safe search off/on",
    "validate": utils.bool_or_none, "example": "on"})
class Module(ModuleManager.BaseModule):
    @utils.hook("received.command.g", alias_of="google")
    @utils.hook("received.command.google")
    def google(self, event):
        """
        :help: Get first Google result for a given search term
        :usage: [search term]
        """

        phrase = event["args"] or event["target"].buffer.get()
        if phrase:
            safe_setting = event["target"].get_setting("google-safesearch",
                True)
            safe = "active" if safe_setting else "off"

            page = utils.http.request(URL_GOOGLESEARCH, get_params={
                "q": phrase, "key": self.bot.config[
                "google-api-key"], "cx": self.bot.config[
                "google-search-id"], "prettyPrint": "true",
                "num": 1, "gl": "gb", "safe": safe}, json=True)
            if page:
                if "items" in page.data and len(page.data["items"]):
                    event["stdout"].write(
                        "(%s) %s" % (phrase, page.data["items"][0]["link"]))
                else:
                    event["stderr"].write("No results found")
            else:
                raise utils.EventsResultsError()
        else:
            event["stderr"].write("No phrase provided")

    @utils.hook("received.command.suggest")
    def suggest(self, event):
        """
        :help: Get suggested phrases from Google
        :usage: [phrase]
        """
        phrase = event["args"] or event["target"].buffer.get()
        if phrase:
            page = utils.http.request(URL_GOOGLESUGGEST, get_params={
                "output": "json", "client": "hp", "gl": "gb", "q": phrase})
            if page:
                # google gives us jsonp, so we need to unwrap it.
                page = page.data.split("(", 1)[1][:-1]
                page = json.loads(page)
                suggestions = page[1]
                suggestions = [utils.http.strip_html(s[0]) for s in suggestions]

                if suggestions:
                    event["stdout"].write("%s: %s" % (phrase,
                        ", ".join(suggestions)))
                else:
                    event["stderr"].write("No suggestions found")
            else:
                raise utils.EventsResultsError()
        else:
            event["stderr"].write("No phrase provided")