from odoo import api, fields, models


class FlFeeWaiver(models.Model):
    """
    FL Statute 57.082 — Determination of Civil Indigent Status.
    Income threshold: < 200% of federal poverty level.

    2025 Federal Poverty Level (HHS):
      Base (1 person): $15,060/year
      Per additional person: $5,380/year

    Update FPL_BASE and FPL_PER_PERSON constants annually.
    Source: https://aspe.hhs.gov/topics/poverty-economic-mobility/poverty-guidelines
    """
    _name = 'fl.fee.waiver'
    _description = 'Fee Waiver / Civil Indigent Status (FL 57.082)'
    _inherit = ['mail.thread']
    _order = 'create_date desc'

    # 2025 FPL constants — UPDATE ANNUALLY
    FPL_BASE_2025 = 15060       # 1-person household
    FPL_PER_PERSON_2025 = 5380  # Each additional person

    case_id = fields.Many2one(
        'fl.case', string='Case',
        ondelete='cascade', index=True
    )
    party_id = fields.Many2one(
        'res.partner', string='Applicant',
        required=True
    )

    # ── Income & Household ─────────────────────────────────────────────────

    household_size = fields.Integer(
        string='Household Size',
        required=True,
        default=1,
        help='Include all persons in the household (applicant + dependents + spouse/partner)'
    )
    monthly_gross_income = fields.Float(
        string='Monthly Gross Income ($)',
        required=True,
        help='Total gross monthly income from all sources'
    )
    annual_gross_income = fields.Float(
        string='Annual Gross Income ($)',
        compute='_compute_annual', store=True
    )

    # ── FPL Threshold Calculation ──────────────────────────────────────────

    fpl_annual = fields.Float(
        string='Federal Poverty Level — Annual ($)',
        compute='_compute_threshold', store=True,
        help='100% FPL for this household size'
    )
    fpl_200pct_threshold = fields.Float(
        string='200% FPL Threshold ($)',
        compute='_compute_threshold', store=True,
        help='200% FPL — income must be below this to qualify'
    )

    eligible = fields.Boolean(
        string='Fee Waiver Eligible',
        compute='_compute_eligibility', store=True
    )
    eligibility_note = fields.Char(
        string='Eligibility Result',
        compute='_compute_eligibility'
    )

    # ── Miami-Dade Mediator Fee Waiver (FL 44.108) ─────────────────────────

    mediator_fee_waiver_eligible = fields.Boolean(
        string='Mediator Fee Waiver Eligible (FL 44.108)',
        compute='_compute_mediator_waiver', store=True,
        help='Miami-Dade County provides free mediators for qualifying income. '
             'Same income threshold as civil indigent status (200% FPL).'
    )

    # ── Status ────────────────────────────────────────────────────────────

    state = fields.Selection([
        ('draft', 'Draft'),
        ('submitted', 'Submitted to Clerk'),
        ('approved', 'Approved'),
        ('denied', 'Denied'),
    ], string='Status', default='draft', tracking=True)

    application_date = fields.Date(
        string='Application Date',
        default=fields.Date.today
    )
    approval_date = fields.Date(string='Approval Date')
    denial_reason = fields.Text(string='Denial Reason')
    expiration_date = fields.Date(
        string='Expiration Date',
        help='Fee waiver approvals typically expire — check with clerk'
    )
    clerk_stamp_attachment_ids = fields.Many2many(
        'ir.attachment',
        'fl_fee_waiver_attachment_rel',
        'waiver_id', 'attachment_id',
        string='Clerk-Stamped Copy'
    )
    notes = fields.Text(string='Notes')

    # ── Computed ──────────────────────────────────────────────────────────

    @api.depends('monthly_gross_income')
    def _compute_annual(self):
        for rec in self:
            rec.annual_gross_income = (rec.monthly_gross_income or 0.0) * 12

    @api.depends('household_size')
    def _compute_threshold(self):
        for rec in self:
            size = max(rec.household_size or 1, 1)
            fpl = self.FPL_BASE_2025 + (size - 1) * self.FPL_PER_PERSON_2025
            rec.fpl_annual = fpl
            rec.fpl_200pct_threshold = fpl * 2

    @api.depends('annual_gross_income', 'fpl_200pct_threshold')
    def _compute_eligibility(self):
        for rec in self:
            annual = rec.annual_gross_income or 0.0
            threshold = rec.fpl_200pct_threshold or 0.0
            if annual and threshold:
                rec.eligible = annual <= threshold
                if rec.eligible:
                    rec.eligibility_note = (
                        f'✅ ELIGIBLE — Annual income ${annual:,.0f} '
                        f'is below 200% FPL (${threshold:,.0f})'
                    )
                else:
                    excess = annual - threshold
                    rec.eligibility_note = (
                        f'❌ NOT ELIGIBLE — Annual income ${annual:,.0f} '
                        f'exceeds 200% FPL (${threshold:,.0f}) '
                        f'by ${excess:,.0f}'
                    )
            else:
                rec.eligible = False
                rec.eligibility_note = 'Enter income and household size to check eligibility'

    @api.depends('eligible')
    def _compute_mediator_waiver(self):
        # Miami-Dade FL 44.108 — same threshold as civil indigent status
        for rec in self:
            rec.mediator_fee_waiver_eligible = rec.eligible

    def action_submit(self):
        self.state = 'submitted'

    def action_approve(self):
        self.state = 'approved'
        self.approval_date = fields.Date.today()

    def action_deny(self):
        self.state = 'denied'