package database

import (
	"gorm.io/gorm"

	"github.com/sundynix/pets-be/internal/model"
)

// 养护方案预置：5 个阶段 × 2 物种，各一套「标准照护」。
//
// 内容按各阶段的真实生理重点配，不是把同一份东西换个名字：
//   幼年期  疫苗序列 + 驱虫 + 社会化，大型犬还要控制生长速度
//   青年期  绝育窗口 + 换成年粮
//   成年期  维持期，重点是把基线数据记下来（体重趋势、年度体检）
//   中年期  年度血检开始有意义，体重和牙结石重点看
//   老年期  体检频率加倍，猫看肾和甲状腺、狗看关节和心脏
//
// 和 record_types / breeds 一样只在表为空时铺一次，之后一切以数据库为准。
//
// 这些是「结构」不是「内容」：方案表空着的话建档最后一步没东西可挑，
// 用户建完档只能自己从零排计划。

func plan(title, desc, repeat, sheet string) model.CareTemplateItem {
	return model.CareTemplateItem{Kind: model.CareKindPlan, Repeat: repeat,
		Title: title, Description: desc, SheetType: sheet}
}
func weekly(title, desc, weekdays, sheet string) model.CareTemplateItem {
	it := plan(title, desc, model.RepeatWeekly, sheet)
	it.Weekdays = weekdays
	return it
}
func monthly(title, desc string, day int, sheet string) model.CareTemplateItem {
	it := plan(title, desc, model.RepeatMonthly, sheet)
	it.MonthDay = day
	return it
}
func once(title, desc string, day int, sheet string) model.CareTemplateItem {
	it := plan(title, desc, model.RepeatOnce, sheet)
	it.Day = day
	return it
}
func remind(rtype, title string, offset int, freq string) model.CareTemplateItem {
	return model.CareTemplateItem{Kind: model.CareKindReminder, ReminderType: rtype,
		Title: title, OffsetDays: offset, Frequency: freq}
}
func important(it model.CareTemplateItem) model.CareTemplateItem {
	it.Priority = "重要"
	return it
}

// TplDef 一套方案的定义（迁移程序要读它）
type tplDef struct {
	Species string
	Stage   string
	Name    string
	Summary string
	Items   []model.CareTemplateItem
}

// CareTemplateDefs 导出给一次性迁移程序用
func CareTemplateDefs() []tplDef { return careTemplateDefs() }

// SeedCareTemplatesForce 不检查表空，直接铺。只给迁移程序用
func SeedCareTemplatesForce(db *gorm.DB) error { return insertCareTemplates(db) }

func careTemplateDefs() []tplDef {
	const (
		J = "幼年期"
		Y = "青年期"
		A = "成年期"
		M = "中年期"
		S = "老年期"
	)
	return []tplDef{
		// ───────────────── 猫 ─────────────────
		{model.SpeciesCat, J, "幼猫标准照护", "少量多餐、疫苗序列和社会化，六月龄前把基础打好", []model.CareTemplateItem{
			important(plan("喂食 3-4 次", "幼猫胃容量小，一天分 3-4 顿，用幼猫粮", model.RepeatDaily, "food")),
			plan("清理猫砂盆", "每天铲一次，顺手看便便形状和颜色", model.RepeatDaily, "litterbox"),
			plan("陪玩 15 分钟", "逗猫棒模拟狩猎，消耗精力也是社会化", model.RepeatDaily, ""),
			weekly("称一次体重", "幼猫每周都在长，体重曲线比单次数值有用", "1", "weight"),
			weekly("检查耳朵和眼睛", "幼猫耳螨和眼部分泌物高发", "4", "ear"),
			once("核对疫苗进度", "对照月龄看第几针，三针核心疫苗要在六月龄前打完", 2, "vaccine"),
			once("首次体内驱虫", "幼猫驱虫比成猫频繁，按体重给药", 5, "deworm"),
			remind("vaccine", "下一针疫苗", 21, "幼猫期每 3-4 周一针，共三针"),
			remind("deworm", "体内外驱虫", 30, "幼猫每月一次"),
			remind("weight", "记录体重", 7, "每周一次"),
		}},
		{model.SpeciesCat, Y, "青年猫标准照护", "绝育窗口、换成猫粮，开始把体重控住", []model.CareTemplateItem{
			plan("喂食 2 次", "六月龄后可以改成早晚两顿", model.RepeatDaily, "food"),
			plan("清理猫砂盆", "每天铲一次", model.RepeatDaily, "litterbox"),
			plan("陪玩 15 分钟", "性成熟后精力旺盛，玩够了才不拆家", model.RepeatDaily, ""),
			weekly("称一次体重", "绝育前后代谢会变，体重要盯紧", "1", "weight"),
			weekly("梳毛", "换毛期减少毛球", "4", "brush"),
			once("咨询绝育时间", "多数猫 6-8 月龄可做，术前要空腹和体检", 3, "vet"),
			once("换成猫粮", "一岁前后用 7 天时间按比例过渡，别一次换完", 14, "food"),
			remind("vaccine", "年度加强疫苗", 60, "一年一次"),
			remind("deworm", "体内外驱虫", 60, "每 2-3 个月一次"),
		}},
		{model.SpeciesCat, A, "成年猫标准照护", "维持期，重点是把基线数据记下来", []model.CareTemplateItem{
			plan("喂食和换水", "定时定量，水每天换", model.RepeatDaily, "food"),
			plan("清理猫砂盆", "每天铲一次，便便异常是最早的信号", model.RepeatDaily, "litterbox"),
			weekly("梳毛", "长毛猫每天，短毛猫每周两次", "2,5", "brush"),
			weekly("刷牙", "牙结石是成年猫最常被忽略的问题", "6", "tooth"),
			monthly("称一次体重", "成年后体重该是平的，涨跌超过 5% 要留意", 1, "weight"),
			monthly("洗猫砂盆", "整盆倒空清洗一次", 15, "litterbox"),
			once("安排年度体检", "成年期一年一次，做基础血检建立基线", 7, "checkup"),
			remind("vaccine", "年度加强疫苗", 90, "一年一次"),
			remind("deworm", "体内外驱虫", 90, "每 3 个月一次"),
			remind("monthlyReport", "看看这个月的记录", 30, "每月一次"),
		}},
		{model.SpeciesCat, M, "中年猫标准照护", "七岁起代谢变慢，年度血检开始能查出早期问题", []model.CareTemplateItem{
			plan("喂食和换水", "中年后容易发胖，按体重控制热量", model.RepeatDaily, "food"),
			plan("清理猫砂盆", "尿量和尿块大小要留意，肾病最早从这里看出来", model.RepeatDaily, "litterbox"),
			weekly("梳毛", "自我梳理会减少，需要帮忙", "2,5", "brush"),
			weekly("刷牙", "牙结石到这个年龄已经开始影响进食", "6", "tooth"),
			monthly("称一次体重", "不明原因掉体重是中年猫要警惕的信号", 1, "weight"),
			monthly("检查口腔", "看牙龈颜色和有没有结石", 15, ""),
			once("安排年度体检", "血检 + 尿检，重点看肾功能和甲状腺", 7, "checkup"),
			remind("vaccine", "年度加强疫苗", 90, "一年一次"),
			remind("deworm", "体内外驱虫", 90, "每 3 个月一次"),
			remind("weight", "记录体重", 30, "每月一次"),
		}},
		{model.SpeciesCat, S, "老年猫标准照护", "体检半年一次，肾和甲状腺是重点", []model.CareTemplateItem{
			important(plan("记录饮水量", "多饮多尿是慢性肾病最典型的早期表现", model.RepeatDaily, "water")),
			plan("喂食", "老年猫可能需要处方粮，少量多次更好消化", model.RepeatDaily, "food"),
			plan("清理猫砂盆", "尿块变大或变多要立刻记下来", model.RepeatDaily, "litterbox"),
			weekly("梳毛", "老年猫自己舔不到的地方要帮它梳", "2,5", "brush"),
			weekly("称一次体重", "老年期体重变化要按周盯，不是按月", "1", "weight"),
			monthly("检查关节活动", "跳不上原来能跳的地方就是信号", 1, ""),
			once("安排半年体检", "血检 + 尿检 + 甲状腺，老年期半年一次", 7, "checkup"),
			remind("vaccine", "年度加强疫苗", 90, "一年一次（可与医生商量减免）"),
			remind("deworm", "体内外驱虫", 90, "每 3 个月一次"),
			remind("monthlyReport", "看看这个月的记录", 30, "每月一次"),
		}},

		// ───────────────── 狗 ─────────────────
		{model.SpeciesDog, J, "幼犬标准照护", "疫苗序列、社会化，大型犬还要控制生长速度", []model.CareTemplateItem{
			important(plan("喂食 3-4 次", "幼犬一天分 3-4 顿；大型犬别过量补钙，长太快伤关节", model.RepeatDaily, "food")),
			plan("外出排便和散步", "疫苗打齐前避免去流浪动物多的地方", model.RepeatDaily, ""),
			plan("基础训练 10 分钟", "坐、等待、唤回。幼犬期是社会化窗口，错过很难补", model.RepeatDaily, ""),
			weekly("称一次体重", "幼犬长得快，体重曲线也是喂食量的依据", "1", "weight"),
			weekly("检查爪垫和耳朵", "散步后看有没有扎伤，垂耳犬要重点看耳道", "4", "ear"),
			once("核对疫苗进度", "对照月龄看第几针，狂犬疫苗按当地规定单独安排", 2, "vaccine"),
			once("首次体内驱虫", "按体重给药，幼犬比成犬频繁", 5, "deworm"),
			remind("vaccine", "下一针疫苗", 21, "幼犬期每 3-4 周一针"),
			remind("deworm", "体内外驱虫", 30, "幼犬每月一次"),
			remind("weight", "记录体重", 7, "每周一次"),
		}},
		{model.SpeciesDog, Y, "青年犬标准照护", "骨骼刚闭合，可以加运动量了；绝育窗口也在这里", []model.CareTemplateItem{
			plan("喂食 2 次", "改成早晚两顿", model.RepeatDaily, "food"),
			plan("散步 30 分钟以上", "骨骼闭合后可以正常运动，之前不宜长距离跑跳", model.RepeatDaily, ""),
			plan("训练 10 分钟", "把幼犬期学的固化下来", model.RepeatDaily, ""),
			weekly("称一次体重", "换成犬粮期间容易长胖", "1", "weight"),
			weekly("梳毛", "换毛期每天，平时每周两次", "2,5", "brush"),
			once("咨询绝育时间", "大型犬建议等骨骼闭合后再做", 3, "vet"),
			once("换成犬粮", "用 7 天按比例过渡，别一次换完", 14, "food"),
			remind("vaccine", "年度加强疫苗", 60, "一年一次"),
			remind("deworm", "体内外驱虫", 60, "每 2-3 个月一次"),
		}},
		{model.SpeciesDog, A, "成年犬标准照护", "维持期，重点是把基线数据记下来", []model.CareTemplateItem{
			plan("喂食和换水", "定时定量，水每天换", model.RepeatDaily, "food"),
			plan("散步 30-60 分钟", "运动量不够是成年犬发胖和行为问题的主因", model.RepeatDaily, ""),
			weekly("梳毛", "顺手摸一遍有没有肿块", "2,5", "brush"),
			weekly("刷牙", "牙结石是成年犬最常被忽略的问题", "6", "tooth"),
			monthly("称一次体重", "成年后体重该是平的，涨跌超过 5% 要留意", 1, "weight"),
			monthly("剪指甲", "听到走路哒哒响就该剪了", 15, "nail"),
			once("安排年度体检", "一年一次，做基础血检建立基线", 7, "checkup"),
			remind("vaccine", "年度加强疫苗", 90, "一年一次"),
			remind("deworm", "体内外驱虫", 90, "每 3 个月一次"),
			remind("monthlyReport", "看看这个月的记录", 30, "每月一次"),
		}},
		{model.SpeciesDog, M, "中年犬标准照护", "体重和关节是重点，年度血检开始有意义", []model.CareTemplateItem{
			plan("喂食和换水", "代谢变慢，按体重下调热量", model.RepeatDaily, "food"),
			plan("散步 30 分钟", "保持规律但降低强度，避免急停急转", model.RepeatDaily, ""),
			weekly("梳毛并摸一遍身体", "中年后肿块发生率上升，每周摸一遍是最便宜的筛查", "2,5", "brush"),
			weekly("刷牙", "牙结石到这个年龄已经开始影响进食", "6", "tooth"),
			monthly("称一次体重", "中年犬超重会直接加重关节负担", 1, "weight"),
			monthly("检查关节活动", "起身变慢、不愿上楼就是信号", 15, ""),
			once("安排年度体检", "血检 + 关节检查，大型犬加拍髋关节", 7, "checkup"),
			remind("vaccine", "年度加强疫苗", 90, "一年一次"),
			remind("deworm", "体内外驱虫", 90, "每 3 个月一次"),
			remind("weight", "记录体重", 30, "每月一次"),
		}},
		{model.SpeciesDog, S, "老年犬标准照护", "体检半年一次，关节和心脏是重点", []model.CareTemplateItem{
			important(plan("记录精神和食欲", "老年犬变化来得快，每天一句话记下来", model.RepeatDaily, "")),
			plan("喂食", "老年犬可能需要处方粮，少量多次更好消化", model.RepeatDaily, "food"),
			plan("散步 15-20 分钟", "短而多次，比一次走久对关节友好", model.RepeatDaily, ""),
			weekly("梳毛并摸一遍身体", "重点摸有没有新长的肿块", "2,5", "brush"),
			weekly("称一次体重", "老年期体重变化要按周盯", "1", "weight"),
			monthly("检查关节和牙齿", "起身、上楼、咀嚼有没有变吃力", 1, ""),
			once("安排半年体检", "血检 + 心脏听诊 + 关节，老年期半年一次", 7, "checkup"),
			remind("vaccine", "年度加强疫苗", 90, "一年一次（可与医生商量减免）"),
			remind("deworm", "体内外驱虫", 90, "每 3 个月一次"),
			remind("monthlyReport", "看看这个月的记录", 30, "每月一次"),
		}},
	}
}

// seedCareTemplates 只在方案表为空时铺一次
func seedCareTemplates(db *gorm.DB) error {
	var count int64
	if err := db.Model(&model.CareTemplate{}).Count(&count).Error; err != nil {
		return err
	}
	if count > 0 {
		return nil
	}
	return insertCareTemplates(db)
}

func insertCareTemplates(db *gorm.DB) error {
	for i, d := range careTemplateDefs() {
		tpl := model.CareTemplate{
			Species: d.Species, Stage: d.Stage, Name: d.Name,
			Summary: d.Summary, Sort: (i + 1) * 10, Enabled: true,
		}
		if err := db.Create(&tpl).Error; err != nil {
			return err
		}
		items := make([]model.CareTemplateItem, 0, len(d.Items))
		for j, it := range d.Items {
			it.TemplateID = tpl.ID
			it.Sort = j
			items = append(items, it)
		}
		if len(items) > 0 {
			if err := db.Create(&items).Error; err != nil {
				return err
			}
		}
	}
	return nil
}