from odoo import fields, models


class McProgram(models.Model):
    _name = "mc.program"
    _description = "Program"
    # sequence_no drives sort order everywhere - never sort by display_label.
    # "Class X" sorts alphabetically between "Class I" and "Class XI".
    _order = "sequence_no, name"
    _rec_name = "name"

    name = fields.Char(string="Name", required=True, help='Full label, e.g. "Grade 8 CBSE".')
    code = fields.Char(string="Code", required=True)
    sequence_no = fields.Integer(
        string="Sequence", required=True, default=10,
        help="Drives sort order everywhere. Never sort by display label.",
    )
    display_label = fields.Char(
        string="Display Label", required=True,
        help='School-facing label, e.g. "Grade 8", "Class VIII", "Year 8".',
    )
    board = fields.Char(string="Board", help="e.g. CBSE, ICSE, IB, Cambridge, Ontario.")
    company_id = fields.Many2one(
        "res.company", string="Company", required=True,
        default=lambda self: self.env.company,
    )

    _code_company_uniq = models.Constraint(
        "unique(code, company_id)",
        "A program with this code already exists for this company.",
    )