# -*- coding: utf-8 -*-
from odoo import api, fields, models

RELATION_STATUS_ORDER = [
    'enemy', 'hostile', 'stranger', 'acquaintance', 'friend', 'close_friend', 'family',
]
RELATION_STATUS_LABELS = {
    'enemy': '死敌', 'hostile': '敌对', 'stranger': '陌生人',
    'acquaintance': '熟人', 'friend': '朋友', 'close_friend': '挚友', 'family': '至亲',
}

class GameNpcRelationship(models.Model):
    _name = 'game.npc.relationship'
    _description = 'NPC 关系'
    _rec_name = 'display_name'
    _order = 'affinity desc'

    npc_id = fields.Many2one('game.npc', string='角色', required=True, ondelete='cascade', index=True)
    target_npc_id = fields.Many2one('game.npc', string='对方', required=True, ondelete='cascade', index=True)
    affinity = fields.Integer(string='好感度', default=0,
        help='范围 -100（死敌）~ 100（至亲），0 = 陌生人')
    status = fields.Selection([
        ('enemy', '死敌'), ('hostile', '敌对'), ('stranger', '陌生人'),
        ('acquaintance', '熟人'), ('friend', '朋友'),
        ('close_friend', '挚友'), ('family', '至亲'),
    ], string='关系层级', default='stranger', compute='_compute_status', store=True)

    last_interaction = fields.Datetime(string='最近互动', default=fields.Datetime.now)
    interaction_count = fields.Integer(string='互动次数', default=1)
    notes = fields.Text(string='看法备注',
        help='角色对对方的印象，未来可由 LLM 生成')

    display_name = fields.Char(string='显示名称', compute='_compute_display_name')

    _sql_constraints = [
        ('unique_npc_pair', 'UNIQUE(npc_id, target_npc_id)',
         '同一对 NPC 只能有一条关系记录！'),
    ]

    @api.depends('npc_id', 'target_npc_id')
    def _compute_display_name(self):
        for r in self:
            source = r.npc_id.name or '?'
            target = r.target_npc_id.name or '?'
            r.display_name = f'{source} → {target}'

    @api.depends('affinity')
    def _compute_status(self):
        for r in self:
            r.status = r._calc_status(r.affinity)

    def _calc_status(self, affinity):
        if affinity <= -70: return 'enemy'
        if affinity <= -30: return 'hostile'
        if affinity <= 10: return 'stranger'
        if affinity <= 30: return 'acquaintance'
        if affinity <= 60: return 'friend'
        if affinity <= 80: return 'close_friend'
        return 'family'

    def _update_status(self):
        """将当前好感度同步到关系层级。"""
        for r in self:
            r.status = r._calc_status(r.affinity)