# -*- coding: utf-8 -*-

from odoo import models, fields, api, _
from odoo.exceptions import ValidationError, UserError
import logging

_logger = logging.getLogger(__name__)

CONDITION_CODE_TEMP = """# Available locals:
#  - time, date, datetime, timedelta: Python libraries.
#  - env: Odoo Environement.
#  - model: Model of the record on which the action is triggered.
#  - obj: Record on which the action is triggered if there is one, otherwise None.
#  - user, Current user object.
#  - workflow: Workflow engine.
#  - syslog : syslog(message), function to log debug information to Odoo logging file or console.
#  - warning: warning(message), Warning Exception to use with raise.


result = True"""


class SoongWorkflowLink(models.Model):
    _name = "soong.workflow.link"
    _description = "Soong Workflow Links"

    name = fields.Char(
        string="Name", help="Enter friendly link name that describe the process."
    )
    workflow_id = fields.Many2one(
        comodel_name="soong.workflow",
        string="Workflow Ref.",
        ondelete="cascade",
        required=True,
    )
    condition_code = fields.Text(
        string="Operation Code",
        default=CONDITION_CODE_TEMP,
        help="Enter condition to pass thru this link.",
    )
    node_from = fields.Many2one(
        comodel_name="soong.workflow.node",
        string="Source Node",
        ondelete="cascade",
        required=True,
    )
    node_to = fields.Many2one(
        comodel_name="soong.workflow.node",
        string="Destination Node",
        ondelete="cascade",
        required=True,
    )

    @api.constrains("node_from", "node_to")
    def check_nodes(self):
        for rec in self:
            if rec.node_from == rec.node_to:
                raise ValidationError(
                    _("Sorry, source & destination nodes can't be the same.")
                )

    @api.onchange("node_from", "node_to")
    def onchange_nodes(self):
        for rec in self:
            if rec.node_from and rec.node_to:
                rec.name = "%s -> %s" % (rec.node_from.name, rec.node_to.name)

    def trigger_link(self):
        # Variables
        cx = self.env.context
        model_name = cx.get("active_model")
        rec_id = cx.get("active_id")
        model_obj = self.env[model_name].sudo()
        rec = model_obj.browse(rec_id)
        # Validation
        if rec.state == self.node_from.node_name:
            rec.state = self.node_to.node_name
        return True