282 lines
9.7 KiB
Go
282 lines
9.7 KiB
Go
package seeder
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import (
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"bytes"
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"context"
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"encoding/json"
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"errors"
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"fmt"
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"git.huangwc.com/pig/pig-farm-controller/internal/infra/logs"
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"git.huangwc.com/pig/pig-farm-controller/internal/infra/models"
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"github.com/tidwall/gjson"
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"gorm.io/gorm"
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)
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// SeedPigNutrientRequirements 先严格校验JSON源文件，然后以“有则跳过”的模式播种数据。
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func SeedPigNutrientRequirements(ctx context.Context, tx *gorm.DB, jsonData []byte) error {
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logger := logs.GetLogger(ctx)
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// 检查 PigBreed 表是否为空，如果非空则跳过播种
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isEmpty, err := isTableEmpty(tx, &models.PigBreed{})
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if err != nil {
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return fmt.Errorf("检查 PigBreed 表是否为空失败: %w", err)
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}
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if !isEmpty {
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logger.Info("已存在猪种数据, 跳过数据播种")
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return nil
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}
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// 1. 严格校验JSON文件，检查内部重复键
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if err := validateAndParsePigNutrientRequirementJSON(jsonData); err != nil {
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return fmt.Errorf("JSON源文件校验失败: %w", err)
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}
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// 2. 解析简介信息
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descriptionsNode := gjson.GetBytes(jsonData, "descriptions")
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pigBreedDescriptions := make(map[string]models.PigBreed)
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pigAgeStageDescriptions := make(map[string]models.PigAgeStage)
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pigTypeDescriptions := make(map[string]map[string]models.PigType)
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if descriptionsNode.Exists() {
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// 解析 pig_breeds 描述
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descriptionsNode.Get("pig_breeds").ForEach(func(key, value gjson.Result) bool {
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var pb models.PigBreed
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pb.Name = key.String()
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pb.Description = value.Get("description").String()
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pb.ParentInfo = value.Get("parent_info").String()
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pb.AppearanceFeatures = value.Get("appearance_features").String()
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pb.BreedAdvantages = value.Get("breed_advantages").String()
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pb.BreedDisadvantages = value.Get("breed_disadvantages").String()
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pigBreedDescriptions[key.String()] = pb
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return true
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})
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// 解析 pig_age_stages 描述
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descriptionsNode.Get("pig_age_stages").ForEach(func(key, value gjson.Result) bool {
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var pas models.PigAgeStage
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pas.Name = key.String()
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pas.Description = value.String()
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pigAgeStageDescriptions[key.String()] = pas
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return true
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})
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// 解析 pig_breed_age_stages (PigType) 描述
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descriptionsNode.Get("pig_breed_age_stages").ForEach(func(breedKey, breedValue gjson.Result) bool {
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if _, ok := pigTypeDescriptions[breedKey.String()]; !ok {
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pigTypeDescriptions[breedKey.String()] = make(map[string]models.PigType)
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}
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breedValue.ForEach(func(ageStageKey, ageStageValue gjson.Result) bool {
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var pt models.PigType
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pt.Description = ageStageValue.Get("description").String()
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pt.DailyFeedIntake = float32(ageStageValue.Get("daily_feed_intake").Float())
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pt.DailyGainWeight = float32(ageStageValue.Get("daily_gain_weight").Float())
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pt.MinDays = uint32(ageStageValue.Get("min_days").Uint())
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pt.MaxDays = uint32(ageStageValue.Get("max_days").Uint())
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pt.MinWeight = float32(ageStageValue.Get("min_weight").Float())
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pt.MaxWeight = float32(ageStageValue.Get("max_weight").Float())
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pigTypeDescriptions[breedKey.String()][ageStageKey.String()] = pt
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return true
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})
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return true
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})
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}
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// 3. 将通过校验的、干净的数据写入数据库
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dataNode := gjson.GetBytes(jsonData, "data")
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dataNode.ForEach(func(breedKey, breedValue gjson.Result) bool {
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breedName := breedKey.String()
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var pigBreed models.PigBreed
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// 查找或创建 PigBreed
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pbDesc := pigBreedDescriptions[breedName]
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err = tx.Where(models.PigBreed{Name: breedName}).
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FirstOrCreate(&pigBreed, models.PigBreed{
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Name: breedName,
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Description: pbDesc.Description,
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ParentInfo: pbDesc.ParentInfo,
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AppearanceFeatures: pbDesc.AppearanceFeatures,
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BreedAdvantages: pbDesc.BreedAdvantages,
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BreedDisadvantages: pbDesc.BreedDisadvantages,
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}).Error
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if err != nil {
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return false
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}
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breedValue.ForEach(func(ageStageKey, ageStageValue gjson.Result) bool {
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ageStageName := ageStageKey.String()
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var pigAgeStage models.PigAgeStage
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// 查找或创建 PigAgeStage
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pasDesc := pigAgeStageDescriptions[ageStageName]
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err = tx.Where(models.PigAgeStage{Name: ageStageName}).
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FirstOrCreate(&pigAgeStage, models.PigAgeStage{
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Name: ageStageName,
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Description: pasDesc.Description,
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}).Error
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if err != nil {
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return false
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}
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var pigType models.PigType
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// 查找或创建 PigType
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ptDesc := pigTypeDescriptions[breedName][ageStageName]
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err = tx.Where(models.PigType{BreedID: pigBreed.ID, AgeStageID: pigAgeStage.ID}).
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FirstOrCreate(&pigType, models.PigType{
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BreedID: pigBreed.ID,
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AgeStageID: pigAgeStage.ID,
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Description: ptDesc.Description,
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DailyFeedIntake: ptDesc.DailyFeedIntake,
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DailyGainWeight: ptDesc.DailyGainWeight,
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MinDays: ptDesc.MinDays,
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MaxDays: ptDesc.MaxDays,
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MinWeight: ptDesc.MinWeight,
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MaxWeight: ptDesc.MaxWeight,
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}).Error
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if err != nil {
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return false
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}
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ageStageValue.ForEach(func(nutrientKey, nutrientValue gjson.Result) bool {
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nutrientName := nutrientKey.String()
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minReq := float32(nutrientValue.Get("min_requirement").Float())
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maxReq := float32(nutrientValue.Get("max_requirement").Float())
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var nutrient models.Nutrient
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// 查找或创建 Nutrient (这里假设 Nutrient 已经在 SeedNutrients 中处理，但为了健壮性，再次 FirstOrCreate)
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err = tx.Where(models.Nutrient{Name: nutrientName}).
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FirstOrCreate(&nutrient, models.Nutrient{
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Name: nutrientName,
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// Description 字段在 nutrient seeder 中处理，这里不设置
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}).Error
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if err != nil {
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return false
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}
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linkData := models.PigNutrientRequirement{
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PigTypeID: pigType.ID,
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NutrientID: nutrient.ID,
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MinRequirement: minReq,
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MaxRequirement: maxReq,
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}
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// 使用 FirstOrCreate 确保关联的唯一性
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err = tx.Where(models.PigNutrientRequirement{
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PigTypeID: pigType.ID,
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NutrientID: nutrient.ID,
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}).FirstOrCreate(&linkData, linkData).Error
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if err != nil {
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return false
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}
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return true
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})
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return err == nil // 如果内部遍历有错误，则停止外部遍历
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})
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return err == nil // 如果内部遍历有错误，则停止外部遍历
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})
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return err // 返回捕获到的错误
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}
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// validateAndParsePigNutrientRequirementJSON 严格校验猪营养需求JSON文件
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func validateAndParsePigNutrientRequirementJSON(jsonData []byte) error {
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dataNode := gjson.GetBytes(jsonData, "data")
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if !dataNode.Exists() {
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return errors.New("JSON文件中缺少 'data' 字段")
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}
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if !dataNode.IsObject() {
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return errors.New("'data' 字段必须是一个JSON对象")
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}
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decoder := json.NewDecoder(bytes.NewReader([]byte(dataNode.Raw)))
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decoder.UseNumber()
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if t, err := decoder.Token(); err != nil || t != json.Delim('{') {
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return fmt.Errorf("'data' 字段解析起始符失败: %v", err)
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}
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seenBreeds := make(map[string]bool)
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for decoder.More() {
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// 解析 PigBreed 名称
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t, err := decoder.Token()
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if err != nil {
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return fmt.Errorf("解析猪品种名称失败: %w", err)
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}
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breedName := t.(string)
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if seenBreeds[breedName] {
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return fmt.Errorf("猪品种名称 '%s' 重复", breedName)
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}
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seenBreeds[breedName] = true
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// 解析该品种的年龄阶段对象
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if t, err := decoder.Token(); err != nil || t != json.Delim('{') {
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return fmt.Errorf("期望猪品种 '%s' 的值是一个JSON对象", breedName)
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}
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seenAgeStages := make(map[string]bool)
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for decoder.More() {
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// 解析 PigAgeStage 名称
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t, err := decoder.Token()
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if err != nil {
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return fmt.Errorf("在猪品种 '%s' 中解析年龄阶段名称失败: %w", breedName, err)
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}
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ageStageName := t.(string)
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if seenAgeStages[ageStageName] {
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return fmt.Errorf("在猪品种 '%s' 中, 年龄阶段名称 '%s' 重复", breedName, ageStageName)
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}
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seenAgeStages[ageStageName] = true
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// 解析该年龄阶段的营养成分对象
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if t, err := decoder.Token(); err != nil || t != json.Delim('{') {
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return fmt.Errorf("期望年龄阶段 '%s' 的值是一个JSON对象", ageStageName)
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}
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seenNutrients := make(map[string]bool)
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for decoder.More() {
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// 解析 Nutrient 名称
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t, err := decoder.Token()
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if err != nil {
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return fmt.Errorf("在年龄阶段 '%s' 中解析营养素名称失败: %w", ageStageName, err)
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}
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nutrientName := t.(string)
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if seenNutrients[nutrientName] {
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return fmt.Errorf("在年龄阶段 '%s' 中, 营养素名称 '%s' 重复", ageStageName, nutrientName)
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}
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seenNutrients[nutrientName] = true
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// 解析 min_requirement 和 max_requirement 对象
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if t, err := decoder.Token(); err != nil || t != json.Delim('{') {
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return fmt.Errorf("期望营养素 '%s' 的值是一个JSON对象", nutrientName)
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}
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for decoder.More() {
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t, err := decoder.Token()
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if err != nil {
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return fmt.Errorf("解析营养素 '%s' 的需求键失败: %w", nutrientName, err)
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}
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// key := t.(string) // 校验时不需要使用 key 的值
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t, err = decoder.Token()
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if err != nil {
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return fmt.Errorf("解析营养素 '%s' 的需求值失败: %w", nutrientName, err)
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}
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if _, ok := t.(json.Number); !ok {
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return fmt.Errorf("期望营养素 '%s' 的需求值是数字, 但实际得到的类型是 %T, 值为 '%v'", nutrientName, t, t)
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}
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}
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if t, err := decoder.Token(); err != nil || t != json.Delim('}') {
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return fmt.Errorf("解析营养素 '%s' 的值结束符 '}' 失败", nutrientName)
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}
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}
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if t, err := decoder.Token(); err != nil || t != json.Delim('}') {
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return fmt.Errorf("解析年龄阶段 '%s' 的值结束符 '}' 失败", ageStageName)
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}
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}
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if t, err := decoder.Token(); err != nil || t != json.Delim('}') {
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return fmt.Errorf("解析猪品种 '%s' 的值结束符 '}' 失败", breedName)
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}
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}
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return nil
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}
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