using Microsoft.Extensions.Logging;
using System;
using System.Collections.Generic;
using System.IO;
using System.Text;
using System.Threading.Tasks;
using HandlebarsDotNet;
using SmartCode.Configuration;
using SmartCode.Utilities;

namespace SmartCode.App.Outputs
{
 public class FileOutput : IOutput
 {
 private readonly ILogger<FileOutput> _logger;

 public FileOutput(ILogger<FileOutput> logger)
 {
 _logger = logger;
 }

 public bool Initialized { get; private set; }

 public string Name { get; private set; } = "File";

 public void Initialize(IDictionary<string, object> parameters)
 {
 if (parameters == null)
 {
 return;
 }

 if (parameters.Value(nameof(Name), out string name))
 {
 Name = name;
 }

 Initialized = true;
 }

 public async Task Output(BuildContext context, Output output = null)
 {
 if (output == null)
 {
 output = context.Output;
 }

 _logger.LogInformation($"------ Mode:{output.Mode},Build:{context.BuildKey} Start! ------");

 var outputPath = Handlebars.Compile(output.Path)(context);
 outputPath = Path.Combine(context.Project.OutputPath, outputPath);
 if (output.DotSplit == true)
 {
 outputPath = outputPath.Replace('.', '/');
 }

 if (!Directory.Exists(outputPath))
 {
 Directory.CreateDirectory(outputPath);
 _logger.LogWarning($"------ Directory:{outputPath} is not Exists,Created! ------");
 }

 var fileName = Handlebars.Compile(output.Name)(context) + output.Extension;
 var filePath = Path.Combine(outputPath, fileName);
 var fileExists = File.Exists(filePath);
 if (fileExists)
 {
 switch (output.Mode)
 {
 case Configuration.CreateMode.None:
 case Configuration.CreateMode.Incre:
 {
 _logger.LogWarning(
 $"------ Mode:{output.Mode},Build:{context.BuildKey},FilePath:{filePath} Exists ignore output End! ------");
 return;
 }
 case Configuration.CreateMode.Full:
 {
 File.Delete(filePath);
 _logger.LogWarning($"------ Mode:{output.Mode},FilePath:{filePath} Exists Deleted ! ------");
 break;
 }
 }
 }

 using (StreamWriter streamWriter = new StreamWriter(filePath))
 {
 await streamWriter.WriteAsync(context.Result.Trim());
 }

 _logger.LogInformation($"------ Mode:{output.Mode},Build:{context.BuildKey} -> {filePath} End! ------");
 }
 }
}