from odoo import models, fields, api


class NSCDeclarationLine(models.Model):
    _name = 'nsc.declaration.line'
    _description = 'NSC Declaration Line'

    it_declaration_id = fields.Many2one('emp.it.declaration', string="IT Declaration", required=True)
    us80c_id = fields.Many2one('us80c.costing.type', string="80C Costing Type", required=True)

    nsc_entry_ids = fields.One2many('nsc.entry', 'parent_id', string="NSC Entries")
    total_nsc_amount = fields.Float(string="Total NSC Amount", compute="_compute_total_amount", store=True)

    @api.depends('nsc_entry_ids.nsc_amount')
    def _compute_total_amount(self):
        for rec in self:
            rec.total_nsc_amount = sum(entry.nsc_amount for entry in rec.nsc_entry_ids)


class NSCEntry(models.Model):
    _name = 'nsc.entry'
    _description = 'NSC Entry'

    parent_id = fields.Many2one('nsc.declaration.line', string="NSC Declaration")
    nsc_number = fields.Char(string="NSC Number")
    nsc_amount = fields.Float(string="NSC Amount")
    nsc_payment_date = fields.Date(string="NSC Payment Date")