# pyrefly: ignore [missing-import]
from odoo import api, fields, models
# pyrefly: ignore [missing-import]
from odoo.exceptions import ValidationError


class EducationHostelRoom(models.Model):
    _name = 'education.hostel.room'
    _description = 'Hostel Room'
    _order = 'hostel_id, room_number'
    _rec_name = 'display_name'

    hostel_id = fields.Many2one(
        'education.hostel',
        string='Hostel',
        required=True,
        ondelete='restrict',
        index=True,
    )
    floor_id = fields.Many2one(
        'education.hostel.floor',
        string='Floor',
        required=True,
        ondelete='restrict',
        index=True,
    )
    name = fields.Char(string='Room Name', required=True)
    room_number = fields.Char(string='Room Number', required=True, index=True)
    room_type = fields.Selection([
        ('single', 'Single'),
        ('double', 'Double'),
        ('triple', 'Triple'),
        ('four', 'Four Sharing'),
        ('dormitory', 'Dormitory'),
        ('custom', 'Custom'),
    ], string='Room Type', default='double', required=True)
    capacity = fields.Integer(string='Capacity', required=True, default=2)
    gender = fields.Selection([
        ('male', 'Male'),
        ('female', 'Female'),
        ('mixed', 'Mixed'),
    ], string='Gender', default='mixed', required=True)
    warden_notes = fields.Text(string='Warden Notes')
    active = fields.Boolean(default=True)

    bed_ids = fields.One2many('education.hostel.bed', 'room_id', string='Beds')
    member_ids = fields.One2many('education.hostel.member', 'room_id', string='Residents')

    company_id = fields.Many2one(
        'res.company',
        string='Company',
        related='hostel_id.company_id',
        store=True,
        readonly=True,
        index=True,
    )

    display_name = fields.Char(string='Display Name', compute='_compute_display_name', store=True)

    # Computed occupancy
    occupied_beds = fields.Integer(string='Occupied Beds', compute='_compute_occupancy', store=False)
    available_beds = fields.Integer(string='Available Beds', compute='_compute_occupancy', store=False)
    occupancy_percentage = fields.Float(string='Occupancy %', compute='_compute_occupancy', store=False)

    _sql_constraints = [
        ('uniq_room_number_hostel', 'unique(room_number, hostel_id)', 'Room number must be unique within the hostel.'),
    ]

    @api.depends('name', 'room_number', 'hostel_id.name')
    def _compute_display_name(self):
        for rec in self:
            rec.display_name = f"{rec.hostel_id.name or ''} / {rec.room_number or ''} - {rec.name or ''}"

    @api.depends('member_ids', 'member_ids.status', 'capacity')
    def _compute_occupancy(self):
        for rec in self:
            active_members = rec.member_ids.filtered(lambda m: m.status == 'active')
            rec.occupied_beds = len(active_members)
            rec.available_beds = max(0, rec.capacity - rec.occupied_beds)
            rec.occupancy_percentage = (
                round(rec.occupied_beds / rec.capacity * 100, 1)
                if rec.capacity else 0.0
            )

    @api.constrains('capacity')
    def _check_capacity(self):
        for rec in self:
            if rec.capacity <= 0:
                raise ValidationError('Room capacity must be greater than zero.')

    @api.constrains('floor_id', 'hostel_id')
    def _check_floor_hostel(self):
        for rec in self:
            if rec.floor_id and rec.floor_id.hostel_id != rec.hostel_id:
                raise ValidationError(
                    'The selected floor does not belong to the selected hostel.'
                )