from notifications_utils.template import WithSubjectTemplate

from app.models import SMS_TYPE, TEMPLATE_TYPES
from app.schema_validation.definitions import uuid, personalisation
from app.utils import get_html_email_body_from_template


get_template_by_id_request = {
    "$schema": "http://json-schema.org/draft-04/schema#",
    "description": "schema for parameters allowed when getting template by id",
    "type": "object",
    "properties": {
        "id": uuid,
        "version": {"type": ["integer", "null"], "minimum": 1}
    },
    "required": ["id"],
    "additionalProperties": False,
}

get_template_by_id_response = {
    "$schema": "http://json-schema.org/draft-04/schema#",
    "description": "GET template by id schema response",
    "type": "object",
    "title": "reponse v2/template",
    "properties": {
        "id": uuid,
        "type": {"enum": TEMPLATE_TYPES},
        "created_at": {
            "format": "date-time",
            "type": "string",
            "description": "Date+time created"
        },
        "updated_at": {
            "format": "date-time",
            "type": ["string", "null"],
            "description": "Date+time updated"
        },
        "created_by": {"type": "string"},
        "version": {"type": "integer"},
        "body": {"type": "string"},
        "subject": {"type": ["string", "null"]},
        "name": {"type": "string"},
        "postage": {"type": "string"}
    },
    "required": ["id", "type", "created_at", "updated_at", "version", "created_by", "body", "name"],
}

post_template_preview_request = {
    "$schema": "http://json-schema.org/draft-04/schema#",
    "description": "POST template schema",
    "type": "object",
    "title": "POST v2/template/{id}/preview",
    "properties": {
        "id": uuid,
        "personalisation": personalisation
    },
    "required": ["id"]
}

post_template_preview_response = {
    "$schema": "http://json-schema.org/draft-04/schema#",
    "description": "POST template preview schema response",
    "type": "object",
    "title": "reponse v2/template/{id}/preview",
    "properties": {
        "id": uuid,
        "type": {"enum": TEMPLATE_TYPES},
        "version": {"type": "integer"},
        "body": {"type": "string"},
        "subject": {"type": ["string", "null"]},
        "postage": {"type": "string"},
        "html": {"type": ["string", "null"]},
    },
    "required": ["id", "type", "version", "body"],
    "additionalProperties": False,
}


def create_post_template_preview_response(template, template_object):
    if template.template_type == SMS_TYPE:
        subject = None
        body = str(template_object)
    else:
        subject = template_object.subject
        body = WithSubjectTemplate.__str__(template_object)

    return {
        "id": template.id,
        "type": template.template_type,
        "version": template.version,
        "body": body,
        "html": get_html_email_body_from_template(template_object),
        "subject": subject,
        "postage": template.postage
    }