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package hexaiaction
import (
"context"
"strings"
"time"
"codeberg.org/snonux/hexai/internal/appconfig"
"codeberg.org/snonux/hexai/internal/llm"
"codeberg.org/snonux/hexai/internal/stats"
"codeberg.org/snonux/hexai/internal/textutil"
"codeberg.org/snonux/hexai/internal/tmux"
)
// Render performs simple {{var}} replacement like LSP.
func Render(t string, vars map[string]string) string { return textutil.RenderTemplate(t, vars) }
// StripFences removes surrounding markdown code fences.
func StripFences(s string) string { return textutil.StripCodeFences(s) }
type chatDoer interface {
Chat(ctx context.Context, msgs []llm.Message, opts ...llm.RequestOption) (string, error)
DefaultModel() string
}
type providerNamer interface{ Name() string }
func providerOf(c any) string {
if n, ok := c.(providerNamer); ok {
return n.Name()
}
return "llm"
}
func runRewrite(ctx context.Context, cfg appconfig.App, client chatDoer, instruction, selection string) (string, error) {
sys := cfg.PromptCodeActionRewriteSystem
user := Render(cfg.PromptCodeActionRewriteUser, map[string]string{"instruction": instruction, "selection": selection})
return runOnceWithOpts(ctx, client, sys, user, reqOptsFrom(cfg))
}
func runDiagnostics(ctx context.Context, cfg appconfig.App, client chatDoer, diags []string, selection string) (string, error) {
var b strings.Builder
for i, d := range diags {
if strings.TrimSpace(d) == "" {
continue
}
b.WriteString(strings.TrimSpace(d))
if i < len(diags)-1 {
b.WriteString("\n")
}
}
sys := cfg.PromptCodeActionDiagnosticsSystem
user := Render(cfg.PromptCodeActionDiagnosticsUser, map[string]string{"diagnostics": b.String(), "selection": selection})
return runOnceWithOpts(ctx, client, sys, user, reqOptsFrom(cfg))
}
func runDocument(ctx context.Context, cfg appconfig.App, client chatDoer, selection string) (string, error) {
sys := cfg.PromptCodeActionDocumentSystem
user := Render(cfg.PromptCodeActionDocumentUser, map[string]string{"selection": selection})
return runOnceWithOpts(ctx, client, sys, user, reqOptsFrom(cfg))
}
func runSimplify(ctx context.Context, cfg appconfig.App, client chatDoer, selection string) (string, error) {
sys := cfg.PromptCodeActionSimplifySystem
user := Render(cfg.PromptCodeActionSimplifyUser, map[string]string{"selection": selection})
return runOnceWithOpts(ctx, client, sys, user, reqOptsFrom(cfg))
}
func runGoTest(ctx context.Context, cfg appconfig.App, client chatDoer, funcCode string) (string, error) {
sys := cfg.PromptCodeActionGoTestSystem
user := Render(cfg.PromptCodeActionGoTestUser, map[string]string{"function": funcCode})
return runOnceWithOpts(ctx, client, sys, user, reqOptsFrom(cfg))
}
func runCustom(ctx context.Context, cfg appconfig.App, client chatDoer, ca appconfig.CustomAction, parts InputParts) (string, error) {
// If user template is provided, prefer it and optional system
if strings.TrimSpace(ca.User) != "" {
sys := cfg.PromptCodeActionRewriteSystem
if strings.TrimSpace(ca.System) != "" {
sys = ca.System
}
// Currently only selection is available in tmux path; diagnostics list not wired
user := Render(ca.User, map[string]string{"selection": parts.Selection, "diagnostics": strings.Join(parts.Diagnostics, "\n")})
return runOnceWithOpts(ctx, client, sys, user, reqOptsFrom(cfg))
}
// Else, use fixed instruction through rewrite template
return runRewrite(ctx, cfg, client, ca.Instruction, parts.Selection)
}
func runOnce(ctx context.Context, client chatDoer, sys, user string) (string, error) {
msgs := []llm.Message{{Role: "system", Content: sys}, {Role: "user", Content: user}}
txt, err := client.Chat(ctx, msgs)
if err != nil {
return "", err
}
out := strings.TrimSpace(StripFences(txt))
// Contribute to global stats and update tmux status
sent := 0
for _, m := range msgs {
sent += len(m.Content)
}
recv := len(out)
_ = stats.Update(ctx, providerOf(client), client.DefaultModel(), sent, recv)
if snap, err := stats.TakeSnapshot(); err == nil {
minsWin := snap.Window.Minutes()
if minsWin <= 0 {
minsWin = 0.001
}
scopeReqs := int64(0)
if pe, ok := snap.Providers[providerOf(client)]; ok {
if mc, ok2 := pe.Models[client.DefaultModel()]; ok2 {
scopeReqs = mc.Reqs
}
}
scopeRPM := float64(scopeReqs) / minsWin
_ = tmux.SetStatus(tmux.FormatGlobalStatusColored(snap.Global.Reqs, snap.RPM, snap.Global.Sent, snap.Global.Recv, providerOf(client), client.DefaultModel(), scopeRPM, scopeReqs, snap.Window))
}
return out, nil
}
func runOnceWithOpts(ctx context.Context, client chatDoer, sys, user string, opts []llm.RequestOption) (string, error) {
msgs := []llm.Message{{Role: "system", Content: sys}, {Role: "user", Content: user}}
txt, err := client.Chat(ctx, msgs, opts...)
if err != nil {
return "", err
}
out := strings.TrimSpace(StripFences(txt))
// Contribute to global stats and update tmux status
sent := 0
for _, m := range msgs {
sent += len(m.Content)
}
recv := len(out)
_ = stats.Update(ctx, providerOf(client), client.DefaultModel(), sent, recv)
if snap, err := stats.TakeSnapshot(); err == nil {
minsWin := snap.Window.Minutes()
if minsWin <= 0 {
minsWin = 0.001
}
scopeReqs := int64(0)
if pe, ok := snap.Providers[providerOf(client)]; ok {
if mc, ok2 := pe.Models[client.DefaultModel()]; ok2 {
scopeReqs = mc.Reqs
}
}
scopeRPM := float64(scopeReqs) / minsWin
_ = tmux.SetStatus(tmux.FormatGlobalStatusColored(snap.Global.Reqs, snap.RPM, snap.Global.Sent, snap.Global.Recv, providerOf(client), client.DefaultModel(), scopeRPM, scopeReqs, snap.Window))
}
return out, nil
}
// reqOptsFrom builds LLM request options similar to LSP behavior.
func reqOptsFrom(cfg appconfig.App) []llm.RequestOption {
opts := []llm.RequestOption{llm.WithMaxTokens(cfg.MaxTokens)}
// Apply temperature, with special-case for gpt-5 (default temp must be 1.0)
if cfg.CodingTemperature != nil {
temp := *cfg.CodingTemperature
prov := strings.ToLower(strings.TrimSpace(cfg.Provider))
model := strings.ToLower(strings.TrimSpace(cfg.OpenAIModel))
if prov == "openai" && strings.HasPrefix(model, "gpt-5") {
temp = 1.0
}
opts = append(opts, llm.WithTemperature(temp))
}
return opts
}
// Timeout helpers to mirror LSP behavior.
func timeout10s(parent context.Context) (context.Context, context.CancelFunc) {
return context.WithTimeout(parent, 20*time.Second)
}
func timeout8s(parent context.Context) (context.Context, context.CancelFunc) {
return context.WithTimeout(parent, 18*time.Second)
}
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