from . import algolia_helper, fetchers


def _is_automatically_updated(config, attribute):
    for start_url in config['start_urls']:
        if not isinstance(start_url, str):
            if 'variables' in start_url:
                for variable in start_url['variables']:
                    if (variable == attribute):
                        if not isinstance(start_url['variables'][variable],
                                          list):
                            return True
    return False


def get_email_for_config(config, analytics_statuses=None):
    base_template = """Hi there,

Congratulations, your search is now ready!
I've successfully configured the underlying crawler and it will now run every 24h.

You're now a few steps away from having it working on your website:

- Copy the following CSS/JavaScript snippets and add them to your page

<!-- at the end of the HEAD -->
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/@docsearch/css@alpha" />

<!-- at the end of the BODY -->
<script type="text/javascript" src="https://cdn.jsdelivr.net/npm/@docsearch/js@alpha"></script>
<script type="text/javascript">
docsearch({
  appId: 'BH4D9OD16A',
  apiKey: '{{API_KEY}}',
  indexName: '{{INDEX_NAME}}',
  container: '### REPLACE ME ####'{{SEARCH_PARAMETERS}},
  debug: false // Set debug to true if you want to inspect the modal
});
</script>

DocSearch is also available on the NPM registry, and for React, learn more on: https://docsearch.algolia.com/docs/DocSearch-v3

- Add a container in your page if you don't have any yet. Then update the container value in the JavaScript snippet
  to a CSS selector that targets your container or an Element.{{FACETS}}
- Optionally customize the look and feel by following the DocSearch documentation
  (See https://docsearch.algolia.com/docs/styling/)
- You can also check your configuration in our GitHub repository
  (See https://github.com/algolia/docsearch-configs/blob/master/configs/{{INDEX_NAME}}.json).
{{ANALYTICS}}

Please open a pull request on https://github.com/algolia/docsearch-configs if want to leverage your configuration. You can get some inspiration by looking at other existing configs, and reading our documentation: https://docsearch.algolia.com/docs/legacy/config-file

Feel free to get back to us if you have any issues or questions regarding the integration.

We'd also be happy to get your feedback and thoughts about DocSearch - so we can continue to improve it.

Have a nice day :)"""

    base_facet_template = """\n- Replace ${{CAPITALISE_NAME}} with the {{NAME}} you want to search on.
   The list of possible {{NAME}} {{UPDATED}}.
   So as of today you have: {{VALUES}}\n"""

    base_example_template = """
  For example if you want to refine the search to {{EXAMPLE_PHRASE}} just specify: 'facetFilters': [{{EXAMPLE_CODE}}]
"""

    # Let the user know how they can access their Analytics
    analytics_details = ''
    if isinstance(analytics_statuses, dict):
        for email, analytics_status in list(analytics_statuses.items()):
            analytics_details += '- ' + email
            if isinstance(analytics_status, str):
                analytics_details += '''\
 can get access to the full Algolia analytics for your DocSearch index by creating an account,\
 following this link: ''' + analytics_status + '\n'
            else:
                analytics_details += '''\
 has already an Algolia account. Analytics are available from the Algolia dashboard by selecting\
 the application DOCSEARCH (access granted)'''

    facets = algolia_helper.get_facets(config)

    facet_template = ""
    search_parameters = ""

    if facets is not None:
        facet_template = "\n"
        configs = fetchers.get_configs_from_repos()

        example_phrase = []
        example_code = []
        example_options = []

        for name, values in list(facets.items()):
            if name == "no_variables":
                continue
            keys = list(values.keys())
            keys.sort()

            if len(keys) > 0:
                updated = "is automatically fetched from your website" if _is_automatically_updated(
                    configs[config],
                    name) else "is hardcoded in the config"
                facet_template += base_facet_template.replace('{{NAME}}', name) \
                    .replace('{{CAPITALISE_NAME}}', name.upper()) \
                    .replace("{{UPDATED}}", updated) \
                    .replace("{{VALUES}}", ', '.join(keys))

                example_phrase.append('the ' + name + ' "' + keys[0] + '"')
                example_code.append("\"" + name + ":" + keys[0] + "\"")
                example_options.append(
                    "\"" + name + ":$" + name.upper() + "\"")

        if len(example_options) > 0:
            search_parameters += ",\n  searchParameters: { 'facetFilters': [" + (
                ', '.join(example_options)) + "] }"
            facet_template += base_example_template.replace(
                '{{EXAMPLE_PHRASE}}', ' and '.join(example_phrase)) \
                .replace('{{EXAMPLE_CODE}}', ', '.join(example_code))

        if facet_template == "\n":
            facet_template = ""

    api_key = algolia_helper.get_docsearch_key(config)
    api_key = "### REPLACE ME ####" if api_key == 'Not found' else api_key

    template = base_template.replace('{{API_KEY}}', api_key) \
        .replace('{{INDEX_NAME}}', config) \
        .replace('{{FACETS}}', facet_template) \
        .replace('{{SEARCH_PARAMETERS}}', search_parameters) \
        .replace('{{ANALYTICS}}', analytics_details)

    return template