from odoo import models, fields, api


class HostelStudent(models.Model):
    _name = "hostel.student"
    _description = "宿舍学生信息"

    # 学生信息
    name = fields.Char("姓名", required=True)
    gender = fields.Selection([("male", "男"), ("female", "女")], string="性别", required=True)
    age = fields.Integer("年龄", required=True)
    active = fields.Boolean("可用", default=True, help="激活/停用 宿舍记录")
    room_id = fields.Many2one("hostel.room", "房间", help="选择房间号")
    

class HostelRoom(models.Model):
    _name = "hostel.room"
    _description = "宿舍房间信息"

    floor_number = fields.Integer("楼层", required=True)
    room_name = fields.Char("房间名称", required=True)
    room_id = fields.Integer("房间编号", required=True)
    rent_amount = fields.Monetary("租金", help="输入每月租金", currency_field="currency_id")
    currency_id = fields.Many2one('res.currency', string="货币种类")
    hostel_id = fields.Many2one("hostel.hostel", "hostel", help='输入宿舍名称')
    student_ids = fields.One2many("hostel.student", "room_id", "学生")
    
    hostel_amenities_ids = fields.Many2many("hostel.amenities", "hostel_room_amenities_rel", "room_id", "amenitily_id",
    string="设施", domain="[('active', '=', True)]", help="选择宿舍设施")
    # 添加状态字段
    state = fields.Selection([('draft', 'Unavailable'), ('available', 'Available'), ('closed', 'Closed')],
                              'State', default='draft')

    @api.model
    def is_allowed_transition(self, old_state, new_state):
        allowed = {
            'draft': ['available'],
            'available': ['closed'],
            'closed': []
        }
        return (old_state, new_state) in allowed

    def change_state(self, new_state):
        for room in self:
            if room.is_allowed_transition(room.state, new_state):
                room.state = new_state
            else:
                continue

    def make_availabel(self):
        self.change_state('available')

    def make_closed(self):
        self.change_state('closed')