feat-visualization (#33)

尽管里面有点粪，但还是生成了漂亮的树，就当给树施肥了
剩下一个小问题：未考虑节点的宽度（因为名称不一样长），但目前未发现对图生成的明显影响

Co-authored-by: jackfiled <xcrenchangjun@outlook.com>
Reviewed-on: PostGuard/Canon#33
Co-authored-by: Ichirinko <1621543655@qq.com>
Co-committed-by: Ichirinko <1621543655@qq.com>

Canon.Server/Models/CodeReader.cs

@@ -0,0 +1,85 @@
+using System.Diagnostics.CodeAnalysis;
+using Canon.Core.Abstractions;
+
+namespace Canon.Server.Models;
+
+public class CodeReader(SourceCode code) : ISourceReader
+{
+    private int _pos = -1;
+
+    private uint _lastPos;
+
+    public uint Line { get; private set; } = 1;
+
+    public uint Pos { get; private set; }
+
+    public string FileName => "string";
+
+    public char Current
+    {
+        get
+        {
+            if (_pos == -1)
+            {
+                throw new InvalidOperationException("Reader at before the start.");
+            }
+            else
+            {
+                return code.Code[_pos];
+            }
+        }
+    }
+
+    public bool Retract()
+    {
+        if (_pos <= 0)
+        {
+            return false;
+        }
+
+        _pos -= 1;
+        if (Current == '\n')
+        {
+            Line -= 1;
+            // TODO: 如果一直回退就完蛋了
+            Pos = _lastPos;
+        }
+        else
+        {
+            Pos -= 1;
+        }
+
+        return true;
+    }
+
+    public bool MoveNext()
+    {
+        if (_pos >= code.Code.Length - 1)
+        {
+            return false;
+        }
+
+        if (_pos != -1 && Current == '\n')
+        {
+            Line += 1;
+            _lastPos = Pos;
+            Pos = 0;
+        }
+
+        _pos += 1;
+        Pos += 1;
+        return true;
+    }
+
+    public bool TryPeekChar([NotNullWhen(true)] out char? c)
+    {
+        if (_pos >= code.Code.Length - 1)
+        {
+            c = null;
+            return false;
+        }
+
+        c = code.Code[_pos + 1];
+        return true;
+    }
+}

Canon.Server/Models/CompileResponse.cs

@@ -0,0 +1,34 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace Canon.Server.Models;
+
+public class CompileResponse
+{
+    [Required]
+    public string Id { get; set; }
+
+    [Required]
+    public string SourceCode { get; set; }
+
+    [Required]
+    public string CompiledCode { get; set; }
+
+    [Required]
+    public string ImageAddress { get; set; }
+
+    public CompileResponse()
+    {
+        Id = string.Empty;
+        SourceCode = string.Empty;
+        CompiledCode = string.Empty;
+        ImageAddress = string.Empty;
+    }
+
+    public CompileResponse(CompileResult result)
+    {
+        Id = result.CompileId;
+        SourceCode = result.SourceCode;
+        CompiledCode = result.CompiledCode;
+        ImageAddress = $"/api/file/{result.SytaxTreeImageFilename}";
+    }
+}

Canon.Server/Models/CompileResult.cs

@@ -0,0 +1,19 @@
+using System.ComponentModel.DataAnnotations;
+using MongoDB.Bson;
+
+namespace Canon.Server.Models;
+
+public class CompileResult
+{
+    public ObjectId Id { get; set; }
+
+    [MaxLength(40)]
+    public string CompileId { get; set; } = string.Empty;
+
+    public string SourceCode { get; set; } = string.Empty;
+
+    [MaxLength(40)]
+    public string SytaxTreeImageFilename { get; set; } = string.Empty;
+
+    public string CompiledCode { get; set; } = string.Empty;
+}

Canon.Server/Models/ImageResponse.cs

@@ -0,0 +1,11 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace Canon.Server.Models;
+
+public class ImageResponse
+{
+    [Required]
+    public required string ResultId { get; set; }
+
+
+}

Canon.Server/Models/SourceCode.cs

@@ -0,0 +1,9 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace Canon.Server.Models;
+
+public class SourceCode
+{
+    [Required]
+    public required string Code { get; set; }
+}