package repositories

import (
    "fmt"
    "time"
    "xorm.io/xorm"
    "xps/datamodels"
    "xps/viewmodels"
)

type ModuleRepo struct {
    engine *xorm.Engine
}

func NewModuleRepo(engine *xorm.Engine) *ModuleRepo {
    return &ModuleRepo{
        engine: engine,
    }
}

func (d *ModuleRepo) GetPage(m map[string]interface{}) (*viewmodels.PageResult, error) {
    limit     := m["limit"].(int)
    page      := m["page"].(int)
    
    sqlSelect := ` SELECT A.*                `
    sqlFrom   := ` FROM   api_module   AS A   `
    sqlWhere  := ` WHERE A.deleted_flag = 0  `
    
    if keywords, ok := m["keywords"]; ok {
        sqlWhere += ` AND A.module_title like ` + "'%" + fmt.Sprintf("%s", keywords) + "%'"
    }
    
    sqlCount    := ` SELECT COUNT(*) `
    total, err1 := d.engine.SQL(sqlCount + sqlFrom + sqlWhere).Count(new(datamodels.ApiModule))
    if err1 != nil {
        return nil, err1
    }
    sqlOrderBy  := " ORDER BY A.module_id ASC "
    
    pageStart   := (page - 1) * limit
    sqlLimit    := fmt.Sprintf(" LIMIT %d OFFSET %d ", limit, pageStart)
    
    datalist := make([]viewmodels.ApiModuleInfo, 0)
    err2 := d.engine.SQL(sqlSelect + sqlFrom + sqlWhere + sqlOrderBy + sqlLimit).Find(&datalist)
    if err2 != nil {
        return nil, err2
    }
    
    pageResult := &viewmodels.PageResult{}
    pageResult.Data     = datalist
    pageResult.Total    = total
    pageResult.PageSize = limit
    pageResult.Page     = page
    return pageResult, nil
}

func (d *ModuleRepo) GetList(m map[string]interface{}) ([]viewmodels.ApiModuleInfo, error) {
    sqlSelect := ` SELECT A.*                `
    sqlFrom   := ` FROM  api_module   AS A    `
    sqlWhere  := ` WHERE A.deleted_flag = 0  `
    if keywords, ok := m["keywords"]; ok {
        sqlWhere += ` AND A.module_title like ` + "'%" + fmt.Sprintf("%s", keywords) + "%'"
    }
    sqlOrderBy := " ORDER BY A.module_id ASC "
    
    datalist   := make([]viewmodels.ApiModuleInfo, 0)
    err := d.engine.SQL(sqlSelect + sqlFrom + sqlWhere + sqlOrderBy).Find(&datalist)
    if err != nil {
        return nil, err
    } else {
        return datalist, nil
    }
}

func (d *ModuleRepo) GetById(moduleId int64) (*viewmodels.ApiModuleInfo, error) {
    sqlSelect := ` SELECT A.*                `
    sqlFrom   := ` FROM  api_module   AS A    `
    sqlWhere  := ` WHERE A.deleted_flag = 0  `
    sqlWhere  += fmt.Sprintf(" AND A.module_id = %d", moduleId)
    
    data := &viewmodels.ApiModuleInfo{}
    has, err := d.engine.SQL(sqlSelect + sqlFrom + sqlWhere).Get(data)
    if !has || err != nil {
        return nil, err
    } else {
        return data, nil
    }
}

func (d *ModuleRepo) Create(data *datamodels.ApiModule) error {
    data.CreatedAt = time.Now()
    _, err := d.engine.Insert(data)
    return err
}

func (d *ModuleRepo) Update(data *datamodels.ApiModule) error {
    moduleId := data.ModuleId
    
    data.UpdatedAt = time.Now()
    _, err := d.engine.
        Where("module_id = ?", moduleId).
        Update(data)
    return err
}

func (d *ModuleRepo) Delete(m map[string]interface{}) error {
    moduleId  := m["moduleId"].(int64)
    deletedBy := m["deletedBy"].(int64)
    
    data := &datamodels.ApiModule{}
    data.DeletedFlag = 1
    data.DeletedBy = deletedBy
    data.DeletedAt = time.Now()
    _, err := d.engine.
        Where("module_id = ?", moduleId).
        Update(data)
    return err
}