package repository

import (
	"context"
	"electricity_bill_calc/global"
	"electricity_bill_calc/logger"
	"electricity_bill_calc/model"
	"electricity_bill_calc/tools"
	"electricity_bill_calc/tools/serial"
	"electricity_bill_calc/types"

	"github.com/doug-martin/goqu/v9"
	_ "github.com/doug-martin/goqu/v9/dialect/postgres"
	"github.com/georgysavva/scany/v2/pgxscan"
	"github.com/jackc/pgx/v5"
	"go.uber.org/zap"
)

type _ParkRepository struct {
	log *zap.Logger
	ds  goqu.DialectWrapper
}

var ParkRepository = _ParkRepository{
	log: logger.Named("Repository", "Park"),
	ds:  goqu.Dialect("postgres"),
}

// 列出指定用户下的所有园区
func (pr _ParkRepository) ListAllParks(uid string) ([]*model.Park, error) {
	pr.log.Info("列出指定用户下的所有园区", zap.String("uid", uid))
	ctx, cancel := global.TimeoutContext()
	defer cancel()

	var parks = make([]*model.Park, 0)
	parkQuerySql, parkParams, _ := pr.ds.
		From("park").
		Select(
			"id", "user_id", "name", "area", "tenement_quantity", "capacity", "category",
			"meter_04kv_type", "region", "address", "contact", "phone", "enabled", "price_policy", "tax_rate",
			"basic_pooled", "adjust_pooled", "loss_pooled", "public_pooled", "created_at", "last_modified_at",
			"deleted_at",
		).
		Where(
			goqu.I("user_id").Eq(uid),
			goqu.I("deleted_at").IsNull(),
		).
		Order(goqu.I("created_at").Asc()).
		Prepared(true).ToSQL()
	if err := pgxscan.Select(ctx, global.DB, &parks, parkQuerySql, parkParams...); err != nil {
		pr.log.Error("列出指定用户下的所有园区失败！", zap.Error(err))
		return make([]*model.Park, 0), err
	}
	return parks, nil
}

// 检查并确定指定园区的归属情况
func (pr _ParkRepository) IsParkBelongs(pid, uid string) (bool, error) {
	pr.log.Info("检查并确定指定园区的归属情况", zap.String("pid", pid), zap.String("uid", uid))
	ctx, cancel := global.TimeoutContext()
	defer cancel()

	var count int64
	parkQuerySql, parkParams, _ := pr.ds.
		From("park").
		Select(goqu.COUNT("*")).
		Where(
			goqu.I("id").Eq(pid),
			goqu.I("user_id").Eq(uid),
		).
		Prepared(true).ToSQL()
	if err := pgxscan.Get(ctx, global.DB, &count, parkQuerySql, parkParams...); err != nil {
		pr.log.Error("检查并确定指定园区的归属情况失败！", zap.Error(err))
		return false, err
	}
	return count > 0, nil
}

// 创建一个属于指定用户的新园区。该创建功能不会对园区的名称进行检查。
func (pr _ParkRepository) CreatePark(ownerId string, park *model.Park) (bool, error) {
	pr.log.Info("创建一个属于指定用户的新园区", zap.String("ownerId", ownerId))
	ctx, cancel := global.TimeoutContext()
	defer cancel()

	timeNow := types.Now()
	serial.StringSerialRequestChan <- 1
	code := serial.Prefix("P", <-serial.StringSerialResponseChan)
	createSql, createArgs, _ := pr.ds.
		Insert("park").
		Cols(
			"id", "user_id", "name", "abbr", "area", "tenement_quantity", "capacity", "category",
			"meter_04kv_type", "region", "address", "contact", "phone", "enabled", "price_policy", "tax_rate",
			"basic_pooled", "adjust_pooled", "loss_pooled", "public_pooled", "created_at", "last_modified_at",
		).
		Vals(goqu.Vals{
			code,
			ownerId, park.Name, tools.PinyinAbbr(park.Name),
			park.Area, park.TenementQuantity, park.Capacity, park.Category,
			park.MeterType, park.Region, park.Address, park.Contact, park.Phone, park.Enabled, park.PricePolicy, park.TaxRate,
			park.BasicPooled, park.AdjustPooled, park.LossPooled, park.PublicPooled, timeNow, timeNow,
		}).
		Prepared(true).ToSQL()
	rs, err := global.DB.Exec(ctx, createSql, createArgs...)
	if err != nil {
		pr.log.Error("创建一个属于指定用户的新园区失败！", zap.Error(err))
		return false, err
	}
	return rs.RowsAffected() > 0, nil
}

// 获取指定园区的详细信息
func (pr _ParkRepository) RetrieveParkDetail(pid string) (*model.Park, error) {
	pr.log.Info("获取指定园区的详细信息", zap.String("pid", pid))
	ctx, cancel := global.TimeoutContext()
	defer cancel()

	var park model.Park
	parkSql, parkArgs, _ := pr.ds.
		From("park").
		Select(
			"id", "user_id", "name", "area", "tenement_quantity", "capacity", "category",
			"meter_04kv_type", "region", "address", "contact", "phone", "enabled", "price_policy", "tax_rate",
			"basic_pooled", "adjust_pooled", "loss_pooled", "public_pooled", "created_at", "last_modified_at",
			"deleted_at",
		).
		Where(goqu.I("id").Eq(pid)).
		Prepared(true).ToSQL()
	if err := pgxscan.Get(ctx, global.DB, &park, parkSql, parkArgs...); err != nil {
		pr.log.Error("获取指定园区的详细信息失败！", zap.Error(err))
		return nil, err
	}
	return &park, nil
}

// 获取园区对应的用户ID
func (pr _ParkRepository) RetrieveParkBelongs(pid string) (string, error) {
	pr.log.Info("获取园区对应的用户ID", zap.String("pid", pid))
	ctx, cancel := global.TimeoutContext()
	defer cancel()

	var uid string
	parkSql, parkArgs, _ := pr.ds.
		From("park").
		Select(goqu.I("user_id")).
		Where(goqu.I("id").Eq(pid)).
		Prepared(true).ToSQL()
	if err := pgxscan.Get(ctx, global.DB, &uid, parkSql, parkArgs...); err != nil {
		pr.log.Error("获取园区对应的用户ID失败！", zap.Error(err))
		return "", err
	}
	return uid, nil
}

// 更新指定园区的信息
func (pr _ParkRepository) UpdatePark(pid string, park *model.Park) (bool, error) {
	pr.log.Info("更新指定园区的信息", zap.String("pid", pid))
	ctx, cancel := global.TimeoutContext()
	defer cancel()

	timeNow := types.Now()
	updateSql, updateArgs, _ := pr.ds.
		Update("park").
		Set(goqu.Record{
			"name":              park.Name,
			"abbr":              tools.PinyinAbbr(park.Name),
			"area":              park.Area,
			"tenement_quantity": park.TenementQuantity,
			"capacity":          park.Capacity,
			"category":          park.Category,
			"meter_04kv_type":   park.MeterType,
			"region":            park.Region,
			"address":           park.Address,
			"contact":           park.Contact,
			"phone":             park.Phone,
			"price_policy":      park.PricePolicy,
			"tax_rate":          park.TaxRate,
			"basic_pooled":      park.BasicPooled,
			"adjust_pooled":     park.AdjustPooled,
			"loss_pooled":       park.LossPooled,
			"public_pooled":     park.PublicPooled,
			"last_modified_at":  timeNow,
		}).
		Where(goqu.I("id").Eq(pid)).
		Prepared(true).ToSQL()

	ok, err := global.DB.Exec(ctx, updateSql, updateArgs...)
	if err != nil {
		pr.log.Error("更新指定园区的信息失败！", zap.Error(err))
		return false, err
	}
	return ok.RowsAffected() > 0, nil
}

// 设定园区的可用状态
func (pr _ParkRepository) EnablingPark(pid string, enabled bool) (bool, error) {
	pr.log.Info("设定园区的可用状态", zap.String("pid", pid), zap.Bool("enabled", enabled))
	ctx, cancel := global.TimeoutContext()
	defer cancel()

	timeNow := types.Now()
	updateSql, updateArgs, _ := pr.ds.
		Update("park").
		Set(goqu.Record{
			"enabled":          enabled,
			"last_modified_at": timeNow,
		}).
		Where(goqu.I("id").Eq(pid)).
		Prepared(true).ToSQL()

	ok, err := global.DB.Exec(ctx, updateSql, updateArgs...)
	if err != nil {
		pr.log.Error("设定园区的可用状态失败！", zap.Error(err))
		return false, err
	}
	return ok.RowsAffected() > 0, nil
}

// 删除指定园区（软删除）
func (pr _ParkRepository) DeletePark(pid string) (bool, error) {
	pr.log.Info("删除指定园区（软删除）", zap.String("pid", pid))
	ctx, cancel := global.TimeoutContext()
	defer cancel()

	timeNow := types.Now()
	updateSql, updateArgs, _ := pr.ds.
		Update("park").
		Set(goqu.Record{
			"deleted_at":       timeNow,
			"last_modified_at": timeNow,
		}).
		Where(goqu.I("id").Eq(pid)).
		Prepared(true).ToSQL()

	ok, err := global.DB.Exec(ctx, updateSql, updateArgs...)
	if err != nil {
		pr.log.Error("删除指定园区（软删除）失败！", zap.Error(err))
		return false, err
	}
	return ok.RowsAffected() > 0, nil
}

// 检索给定的园区详细信息列表
func (pr _ParkRepository) RetrieveParks(pids []string) ([]*model.Park, error) {
	pr.log.Info("检索给定的园区详细信息列表", zap.Strings("pids", pids))
	if len(pids) == 0 {
		pr.log.Info("给定要检索的园区ID列表为空，执行快速返回。")
		return make([]*model.Park, 0), nil
	}
	ctx, cancel := global.TimeoutContext()
	defer cancel()

	var parks []*model.Park
	parkSql, parkArgs, _ := pr.ds.
		From("park").
		Where(goqu.I("id").In(pids)).
		Prepared(true).ToSQL()
	if err := pgxscan.Select(ctx, global.DB, &parks, parkSql, parkArgs...); err != nil {
		pr.log.Error("检索给定的园区详细信息列表失败！", zap.Error(err))
		return nil, err
	}
	return parks, nil
}

// 获取指定园区中的建筑
func (pr _ParkRepository) RetrieveParkBuildings(pid string) ([]*model.ParkBuilding, error) {
	pr.log.Info("获取指定园区中的建筑", zap.String("pid", pid))
	ctx, cancel := global.TimeoutContext()
	defer cancel()

	var buildings []*model.ParkBuilding
	buildingSql, buildingArgs, _ := pr.ds.
		From("park_building").
		Where(
			goqu.I("park_id").Eq(pid),
			goqu.I("deleted_at").IsNull(),
		).
		Order(goqu.I("created_at").Asc()).
		Prepared(true).ToSQL()

	if err := pgxscan.Select(ctx, global.DB, &buildings, buildingSql, buildingArgs...); err != nil {
		pr.log.Error("获取指定园区中的建筑失败！", zap.Error(err))
		return nil, err
	}
	return buildings, nil
}

// 在指定园区中创建一个新建筑
func (pr _ParkRepository) CreateParkBuilding(pid, name string, floor *string) (bool, error) {
	pr.log.Info("在指定园区中创建一个新建筑", zap.String("pid", pid), zap.String("name", name), zap.Stringp("floor", floor))
	ctx, cancel := global.TimeoutContext()
	defer cancel()

	timeNow := types.Now()
	serial.StringSerialRequestChan <- 1
	code := serial.Prefix("B", <-serial.StringSerialResponseChan)
	createSql, createArgs, _ := pr.ds.
		Insert("park_building").
		Cols(
			"id", "park_id", "name", "floors", "enabled", "created_at", "last_modified_at",
		).
		Vals(goqu.Vals{
			code,
			pid, name, floor, true, timeNow, timeNow,
		}).
		Prepared(true).ToSQL()

	rs, err := global.DB.Exec(ctx, createSql, createArgs...)
	if err != nil {
		pr.log.Error("在指定园区中创建一个新建筑失败！", zap.Error(err))
		return false, err
	}
	return rs.RowsAffected() > 0, nil
}

// 在指定园区中创建一个建筑，这个方法会使用事务
func (pr _ParkRepository) CreateParkBuildingWithTransaction(tx pgx.Tx, ctx context.Context, pid, name string, floor *string) (bool, error) {
	timeNow := types.Now()
	serial.StringSerialRequestChan <- 1
	code := serial.Prefix("B", <-serial.StringSerialResponseChan)
	createSql, createArgs, _ := pr.ds.
		Insert("park_building").
		Cols(
			"id", "park_id", "name", "floors", "enabled", "created_at", "last_modified_at",
		).
		Vals(goqu.Vals{
			code,
			pid, name, floor, true, timeNow, timeNow,
		}).
		Prepared(true).ToSQL()

	rs, err := tx.Exec(ctx, createSql, createArgs...)
	if err != nil {
		pr.log.Error("在指定园区中创建一个新建筑失败！", zap.Error(err))
		return false, err
	}
	return rs.RowsAffected() > 0, nil
}

// 修改指定园区中指定建筑的信息
func (pr _ParkRepository) ModifyParkBuilding(id, pid, name string, floor *string) (bool, error) {
	pr.log.Info("修改指定园区中指定建筑的信息", zap.String("id", id), zap.String("pid", pid), zap.String("name", name), zap.Stringp("floor", floor))
	ctx, cancel := global.TimeoutContext()
	defer cancel()

	timeNow := types.Now()
	updateSql, updateArgs, _ := pr.ds.
		Update("park_building").
		Set(goqu.Record{
			"name":             name,
			"floors":           floor,
			"last_modified_at": timeNow,
		}).
		Where(
			goqu.I("id").Eq(id),
			goqu.I("park_id").Eq(pid),
		).
		Prepared(true).ToSQL()

	rs, err := global.DB.Exec(ctx, updateSql, updateArgs...)
	if err != nil {
		pr.log.Error("修改指定园区中指定建筑的信息失败！", zap.Error(err))
		return false, err
	}
	return rs.RowsAffected() > 0, nil
}

// 修改指定建筑的可以状态
func (pr _ParkRepository) EnablingParkBuilding(id, pid string, enabled bool) (bool, error) {
	pr.log.Info("修改指定建筑的可以状态", zap.String("id", id), zap.String("pid", pid), zap.Bool("enabled", enabled))
	ctx, cancel := global.TimeoutContext()
	defer cancel()

	timeNow := types.Now()
	updateSql, updateArgs, _ := pr.ds.
		Update("park_building").
		Set(goqu.Record{
			"enabled":          enabled,
			"last_modified_at": timeNow,
		}).
		Where(
			goqu.I("id").Eq(id),
			goqu.I("park_id").Eq(pid),
		).
		Prepared(true).ToSQL()

	rs, err := global.DB.Exec(ctx, updateSql, updateArgs...)
	if err != nil {
		pr.log.Error("修改指定建筑的可以状态失败！", zap.Error(err))
		return false, err
	}
	return rs.RowsAffected() > 0, nil
}

// 删除指定建筑（软删除）
func (pr _ParkRepository) DeleteParkBuilding(id, pid string) (bool, error) {
	pr.log.Info("删除指定建筑（软删除）", zap.String("id", id), zap.String("pid", pid))
	ctx, cancel := global.TimeoutContext()
	defer cancel()

	timeNow := types.Now()
	updateSql, updateArgs, _ := pr.ds.
		Update("park_building").
		Set(goqu.Record{
			"deleted_at":       timeNow,
			"last_modified_at": timeNow,
		}).
		Where(
			goqu.I("id").Eq(id),
			goqu.I("park_id").Eq(pid),
		).
		Prepared(true).ToSQL()

	rs, err := global.DB.Exec(ctx, updateSql, updateArgs...)
	if err != nil {
		pr.log.Error("删除指定建筑（软删除）失败！", zap.Error(err))
		return false, err
	}
	return rs.RowsAffected() > 0, nil
}