from openerp.osv import osv, fields


class crm_lead_to_project_issue_wizard(osv.TransientModel):
    """ wizard to convert a Lead into a Project Issue and move the Mail Thread """
    _name = "crm.lead2projectissue.wizard"
    _inherit = 'crm.partner.binding'

    _columns = {
        "lead_id": fields.many2one("crm.lead", "Lead", domain=[("type", "=", "lead")]),
        "project_id": fields.many2one("project.project", "Project", domain=[("use_issues", "=", True)])
    }

    _defaults = {
        "lead_id": lambda self, cr, uid, context=None: context.get('active_id')
    }

    def action_lead_to_project_issue(self, cr, uid, ids, context=None):
        # get the wizards and models
        wizards = self.browse(cr, uid, ids, context=context)
        Lead = self.pool["crm.lead"]
        Issue = self.pool["project.issue"]
        Attachment = self.pool['ir.attachment']

        for wizard in wizards:
            # get the lead to transform
            lead = wizard.lead_id

            partner = self._find_matching_partner(cr, uid, context=context)
            if not partner and (lead.partner_name or lead.contact_name):
                partner_ids = Lead.handle_partner_assignation(cr, uid, [lead.id], context=context)
                partner = partner_ids[lead.id]

            # create new project.issue
            vals = {
                "name": lead.name,
                "description": lead.description,
                "email_from": lead.email_from,
                "project_id": wizard.project_id.id,
                "partner_id": partner,
                "user_id": None
            }
            issue_id = Issue.create(cr, uid, vals, context=None)
            issue = Issue.browse(cr, uid, issue_id, context=None)
            # move the mail thread
            Lead.message_change_thread(cr, uid, [lead.id], issue, context=context)
            # Move attachments
            attachment_ids = Attachment.search(
                cr, uid, [('res_model', '=', 'crm.lead'), ('res_id', '=', lead.id)], context=context)
            Attachment.write(
                cr, uid, attachment_ids, {'res_model': 'project.issue', 'res_id': issue_id}, context=context)
            # Archive the lead
            Lead.write(cr, uid, [lead.id], {'active': False}, context=context)
        # return the action to go to the form view of the new Issue
        view_id = self.pool['ir.model.data'].xmlid_to_res_id(
            cr, uid, 'project_issue.project_issue_form_view')
        return {
            'name': 'Issue created',
            'view_type': 'form',
            'view_mode': 'form',
            'view_id': view_id,
            'res_model': 'project.issue',
            'type': 'ir.actions.act_window',
            'res_id': issue_id,
            'context': context
        }