96 lines
2.1 KiB
Go
96 lines
2.1 KiB
Go
package db
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import (
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"encoding/json"
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"fmt"
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"io"
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"os"
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)
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func ExecDB(db_name string) map[string]interface{} {
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var result map[string]interface{}
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if db_name == "users" {
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users_db, err := os.Open("./test_data/users.json")
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if err != nil {
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fmt.Println(err)
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return nil
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}
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fmt.Println("Successfully opened Users DB")
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defer users_db.Close()
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byteValue, _ := io.ReadAll(users_db)
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var users []interface{}
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json.Unmarshal(byteValue, &users)
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result = map[string]interface{}{"users": users}
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} else if db_name == "messages" {
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messages_db, err := os.Open("./test_data/messages.json")
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if err != nil {
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fmt.Println(err)
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return nil
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}
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fmt.Println("Successfully opened Messages DB")
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defer messages_db.Close()
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byteValue, _ := io.ReadAll(messages_db)
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var messages []interface{}
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json.Unmarshal(byteValue, &messages)
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result = map[string]interface{}{"messages": messages}
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} else {
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fmt.Println("Invalid DB name")
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return nil
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}
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return result
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}
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func WriteDB(db_name string, data interface{}) error {
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var filePath string
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switch db_name {
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case "users":
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filePath = "./test_data/users.json"
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case "messages":
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filePath = "./test_data/messages.json"
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default:
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return fmt.Errorf("invalid database name: %s", db_name)
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}
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jsonData, err := json.MarshalIndent(data, "", " ")
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if err != nil {
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return fmt.Errorf("error marshaling data to JSON: %v", err)
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}
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err = os.WriteFile(filePath, jsonData, 0644)
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if err != nil {
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return fmt.Errorf("error writing to file: %v", err)
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}
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fmt.Printf("Successfully wrote to %s DB\n", db_name)
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return nil
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}
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func AddUser(user map[string]interface{}) error {
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currentData := ExecDB("users")
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if currentData == nil {
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return fmt.Errorf("error reading users database")
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}
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users := currentData["users"].([]interface{})
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users = append(users, user)
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return WriteDB("users", users)
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}
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func AddMessage(message map[string]interface{}) error {
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currentData := ExecDB("messages")
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if currentData == nil {
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return fmt.Errorf("error reading messages database")
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}
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messages := currentData["messages"].([]interface{})
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messages = append(messages, message)
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return WriteDB("messages", messages)
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}
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