syntax = "proto3";

package memos.api.v2;

import "google/api/annotations.proto";

option go_package = "gen/api/v2";

service MarkdownService {
  rpc ParseMarkdown(ParseMarkdownRequest) returns (ParseMarkdownResponse) {
    option (google.api.http) = {
      post: "/api/v2/markdown"
      body: "*"
    };
  }
}

message ParseMarkdownRequest {
  string markdown = 1;
}

message ParseMarkdownResponse {
  repeated Node nodes = 1;
}

enum NodeType {
  NODE_UNSPECIFIED = 0;
  LINE_BREAK = 1;
  PARAGRAPH = 2;
  CODE_BLOCK = 3;
  HEADING = 4;
  HORIZONTAL_RULE = 5;
  BLOCKQUOTE = 6;
  ORDERED_LIST = 7;
  UNORDERED_LIST = 8;
  TASK_LIST = 9;
  TEXT = 10;
  BOLD = 11;
  ITALIC = 12;
  BOLD_ITALIC = 13;
  CODE = 14;
  IMAGE = 15;
  LINK = 16;
  TAG = 17;
  STRIKETHROUGH = 18;
  ESCAPING_CHARACTER = 19;
}

message Node {
  NodeType type = 1;
  oneof node {
    LineBreakNode line_break_node = 2;
    ParagraphNode paragraph_node = 3;
    CodeBlockNode code_block_node = 4;
    HeadingNode heading_node = 5;
    HorizontalRuleNode horizontal_rule_node = 6;
    BlockquoteNode blockquote_node = 7;
    OrderedListNode ordered_list_node = 8;
    UnorderedListNode unordered_list_node = 9;
    TaskListNode task_list_node = 10;
    TextNode text_node = 11;
    BoldNode bold_node = 12;
    ItalicNode italic_node = 13;
    BoldItalicNode bold_italic_node = 14;
    CodeNode code_node = 15;
    ImageNode image_node = 16;
    LinkNode link_node = 17;
    TagNode tag_node = 18;
    StrikethroughNode strikethrough_node = 19;
    EscapingCharacterNode escaping_character_node = 20;
  }
}

message LineBreakNode {}

message ParagraphNode {
  repeated Node children = 1;
}

message CodeBlockNode {
  string language = 1;
  string content = 2;
}

message HeadingNode {
  int32 level = 1;
  repeated Node children = 2;
}

message HorizontalRuleNode {
  string symbol = 1;
}

message BlockquoteNode {
  repeated Node children = 1;
}

message OrderedListNode {
  string number = 1;
  repeated Node children = 2;
}

message UnorderedListNode {
  string symbol = 1;
  repeated Node children = 2;
}

message TaskListNode {
  string symbol = 1;
  bool complete = 2;
  repeated Node children = 3;
}

message TextNode {
  string content = 1;
}

message BoldNode {
  string symbol = 1;
  repeated Node children = 2;
}

message ItalicNode {
  string symbol = 1;
  string content = 2;
}

message BoldItalicNode {
  string symbol = 1;
  string content = 2;
}

message CodeNode {
  string content = 1;
}

message ImageNode {
  string alt_text = 1;
  string url = 2;
}

message LinkNode {
  string text = 1;
  string url = 2;
}

message TagNode {
  string content = 1;
}

message StrikethroughNode {
  string content = 1;
}

message EscapingCharacterNode {
  string symbol = 1;
}