gitFlow/internal/ai/prompt.go
dimitar aee63bf321 feat: phase 5 — AI agent integration (OpenAI, Ollama, Anthropic)
Add the AI layer that turns scan results into suggested next actions.

Provider model (internal/ai):
- Provider interface with Name() and Suggest(ctx, ScanResult) returning
  []Suggestion (repo_path, action, message, command, priority 0-2)
- NewProvider factory resolves the configured provider and enforces that
  cloud providers have their API key in the configured env var; Ollama
  needs no key
- OpenAIProvider: Chat Completions with response_format json_object
- OllamaProvider: local /api/chat with format:json for structured output
- AnthropicProvider: Messages API with system prompt and key/version
  headers; all three fall back to provider-appropriate defaults for
  base_url and model
- Shared client: 60s timeout, 4 MiB response cap, JSON encode/decode,
  HTTP error surfaces the upstream status and body

Prompt design (BuildPrompt):
- Renders the full repository status table (name/status/branch/ahead/
  behind/changes) plus strict output rules: exact suggestion schema,
  allowed actions, smallest-safe-step guidance, no invented repositories,
  return [] when healthy

Parsing (parseSuggestions):
- Tolerates ```json fences and surrounding prose, clamps priorities to
  0-2, caps the result, and rejects replies without a JSON array

Suggestion display (presenter.Suggestions):
- "AI SUGGESTIONS" table (repository/action/priority/message/command)
  rendered below the scan table with priority color-coded (red/yellow/
  green); empty results say all repositories are healthy

Guarded execution (--ai-execute, experimental):
- RunConfirmed executes a suggestion's command inside its repository only
  after explicit per-command y/N confirmation, and only for actions on an
  allowlist (commit/push/pull/stash/checkout) so LLM output can never run
  arbitrary shell commands; cancellation aborts remaining suggestions

CLI wiring:
- scan: AI block after the table when --ai is set and format is not json
  (JSON streams stay machine-readable); failures degrade to warnings
- watch: AI is queried only on the first frame and when something changed
  since the previous frame, to avoid hammering the provider every interval
- New --ai-execute flag and provider validation in config (openai/ollama/
  anthropic), included in the config dump

Testing:
- httptest-based provider tests verifying request shape (model, auth
  headers, path), response parsing, API error bodies, HTTP failures, and
  cancellation
- Parse tests: plain/fenced/prose replies, empty arrays, garbage,
  truncated JSON, priority clamping
- Execution tests: unsafe actions and empty commands never run, declined
  confirmations are skipped, confirmed commands execute in the repo dir,
  failing commands surface errors
- Presenter suggestion table and empty-state tests

Verified: go build, go vet, go test -race, gofmt clean; end-to-end smoke
test against a local fake Ollama server (request shape confirmed, table +
suggestions rendered) and the missing-API-key warning path.
2026-08-02 08:48:27 +02:00

70 lines
2.2 KiB
Go

package ai
import (
"fmt"
"strings"
"time"
"gitea.oblak.solutions/dimitar/gitFlow/pkg/status"
)
// BuildPrompt renders a scan result as an LLM instruction: a repository
// status table plus strict output rules for the suggestion schema.
func BuildPrompt(result status.ScanResult) string {
var b strings.Builder
fmt.Fprintf(&b, "You are gitflow, a Git repository health assistant. "+
"A scan of %q at %s found %d repositories.\n\n",
result.ParentDir, result.ScannedAt.Format(time.RFC3339), len(result.Repos))
b.WriteString("Repository status table:\n")
b.WriteString("| name | status | branch | ahead | behind | changes |\n")
b.WriteString("|---|---|---|---|---|---|\n")
for _, r := range result.Repos {
fmt.Fprintf(&b, "| %s | %s | %s | %d | %d | %s |\n",
r.Name, r.Status, branchLabel(r), r.AheadBy, r.BehindBy, changeSummary(r))
}
attention := result.NeedsAttention()
fmt.Fprintf(&b, "\n%d of %d repositories need attention.\n\n", len(attention), len(result.Repos))
b.WriteString(`Return ONLY a JSON array of suggestions. Each suggestion has exactly these fields:
- "repo_path": absolute path of the repository
- "action": one of "commit", "push", "pull", "stash", "create_pr", "cleanup", "inspect"
- "message": one short sentence explaining the next step
- "command": a concrete git command to run, or "" if none is safe
- "priority": 0 (low), 1 (medium), or 2 (high)
Rules:
- Only suggest actions for repositories that need attention.
- Prefer the smallest safe step; never suggest destructive commands.
- Do not invent repositories that are not in the table.
- If nothing needs attention, return [].
`)
return b.String()
}
func branchLabel(r status.RepoInfo) string {
if r.Branch == "" {
return "(none)"
}
return r.Branch
}
// changeSummary renders staged/modified/untracked counts for the prompt.
func changeSummary(r status.RepoInfo) string {
parts := make([]string, 0, 3)
if n := len(r.StagedFiles); n > 0 {
parts = append(parts, fmt.Sprintf("%d staged", n))
}
if n := len(r.ModifiedFiles); n > 0 {
parts = append(parts, fmt.Sprintf("%d modified", n))
}
if n := len(r.UntrackedFiles); n > 0 {
parts = append(parts, fmt.Sprintf("%d untracked", n))
}
if len(parts) == 0 {
return "none"
}
return strings.Join(parts, ", ")
}