Add a Git section to the context mentions

src/shared/context-mentions.ts

@@ -7,42 +7,79 @@ Mention regex:
 
 - **Regex Breakdown**:
   - `/@`: 
-    - **@**: The mention must start with the '@' symbol.
+	- **@**: The mention must start with the '@' symbol.
   
-  - `((?:\/|\w+:\/\/)[^\s]+?|problems\b)`:
-    - **Capturing Group (`(...)`)**: Captures the part of the string that matches one of the specified patterns.
-    - `(?:\/|\w+:\/\/)`: 
-      - **Non-Capturing Group (`(?:...)`)**: Groups the alternatives without capturing them for back-referencing.
-      - `\/`: 
-        - **Slash (`/`)**: Indicates that the mention is a file or folder path starting with a '/'.
-      - `|`: Logical OR.
-      - `\w+:\/\/`: 
-        - **Protocol (`\w+://`)**: Matches URLs that start with a word character sequence followed by '://', such as 'http://', 'https://', 'ftp://', etc.
-    - `[^\s]+?`: 
-      - **Non-Whitespace Characters (`[^\s]+`)**: Matches one or more characters that are not whitespace.
-      - **Non-Greedy (`+?`)**: Ensures the smallest possible match, preventing the inclusion of trailing punctuation.
-    - `|`: Logical OR.
-    - `problems\b`: 
-      - **Exact Word ('problems')**: Matches the exact word 'problems'.
-      - **Word Boundary (`\b`)**: Ensures that 'problems' is matched as a whole word and not as part of another word (e.g., 'problematic').
+  - `((?:\/|\w+:\/\/)[^\s]+?|problems\b|git-changes\b)`:
+	- **Capturing Group (`(...)`)**: Captures the part of the string that matches one of the specified patterns.
+	- `(?:\/|\w+:\/\/)`: 
+	  - **Non-Capturing Group (`(?:...)`)**: Groups the alternatives without capturing them for back-referencing.
+	  - `\/`: 
+		- **Slash (`/`)**: Indicates that the mention is a file or folder path starting with a '/'.
+	  - `|`: Logical OR.
+	  - `\w+:\/\/`: 
+		- **Protocol (`\w+://`)**: Matches URLs that start with a word character sequence followed by '://', such as 'http://', 'https://', 'ftp://', etc.
+	- `[^\s]+?`: 
+	  - **Non-Whitespace Characters (`[^\s]+`)**: Matches one or more characters that are not whitespace.
+	  - **Non-Greedy (`+?`)**: Ensures the smallest possible match, preventing the inclusion of trailing punctuation.
+	- `|`: Logical OR.
+	- `problems\b`: 
+	  - **Exact Word ('problems')**: Matches the exact word 'problems'.
+	  - **Word Boundary (`\b`)**: Ensures that 'problems' is matched as a whole word and not as part of another word (e.g., 'problematic').
+		- `|`: Logical OR.
+	- `problems\b`: 
+	  - **Exact Word ('git-changes')**: Matches the exact word 'git-changes'.
+	  - **Word Boundary (`\b`)**: Ensures that 'git-changes' is matched as a whole word and not as part of another word.  
 
   - `(?=[.,;:!?]?(?=[\s\r\n]|$))`:
-    - **Positive Lookahead (`(?=...)`)**: Ensures that the match is followed by specific patterns without including them in the match.
-    - `[.,;:!?]?`: 
-      - **Optional Punctuation (`[.,;:!?]?`)**: Matches zero or one of the specified punctuation marks.
-    - `(?=[\s\r\n]|$)`: 
-      - **Nested Positive Lookahead (`(?=[\s\r\n]|$)`)**: Ensures that the punctuation (if present) is followed by a whitespace character, a line break, or the end of the string.
+	- **Positive Lookahead (`(?=...)`)**: Ensures that the match is followed by specific patterns without including them in the match.
+	- `[.,;:!?]?`: 
+	  - **Optional Punctuation (`[.,;:!?]?`)**: Matches zero or one of the specified punctuation marks.
+	- `(?=[\s\r\n]|$)`: 
+	  - **Nested Positive Lookahead (`(?=[\s\r\n]|$)`)**: Ensures that the punctuation (if present) is followed by a whitespace character, a line break, or the end of the string.
   
 - **Summary**:
   - The regex effectively matches:
-    - Mentions that are file or folder paths starting with '/' and containing any non-whitespace characters (including periods within the path).
-    - URLs that start with a protocol (like 'http://') followed by any non-whitespace characters (including query parameters).
-    - The exact word 'problems'.
+	- Mentions that are file or folder paths starting with '/' and containing any non-whitespace characters (including periods within the path).
+	- URLs that start with a protocol (like 'http://') followed by any non-whitespace characters (including query parameters).
+	- The exact word 'problems'.
+	- The exact word 'git-changes'.
   - It ensures that any trailing punctuation marks (such as ',', '.', '!', etc.) are not included in the matched mention, allowing the punctuation to follow the mention naturally in the text.
 
 - **Global Regex**:
   - `mentionRegexGlobal`: Creates a global version of the `mentionRegex` to find all matches within a given string.
 
 */
-export const mentionRegex = /@((?:\/|\w+:\/\/)[^\s]+?|problems\b)(?=[.,;:!?]?(?=[\s\r\n]|$))/
+export const mentionRegex = /@((?:\/|\w+:\/\/)[^\s]+?|[a-f0-9]{7,40}\b|problems\b|git-changes\b)(?=[.,;:!?]?(?=[\s\r\n]|$))/
 export const mentionRegexGlobal = new RegExp(mentionRegex.source, "g")
+
+export interface MentionSuggestion {
+	type: 'file' | 'folder' | 'git' | 'problems'
+	label: string
+	description?: string
+	value: string
+	icon?: string
+}
+
+export interface GitMentionSuggestion extends MentionSuggestion {
+	type: 'git'
+	hash: string
+	shortHash: string
+	subject: string
+	author: string
+	date: string
+}
+
+export function formatGitSuggestion(commit: { hash: string; shortHash: string; subject: string; author: string; date: string }): GitMentionSuggestion {
+	return {
+		type: 'git',
+		label: commit.subject,
+		description: `${commit.shortHash} by ${commit.author} on ${commit.date}`,
+		value: commit.hash,
+		icon: '$(git-commit)', // VSCode git commit icon
+		hash: commit.hash,
+		shortHash: commit.shortHash,
+		subject: commit.subject,
+		author: commit.author,
+		date: commit.date
+	}
+}