feat: done vibing

internal/analyze/analyzer.go

@@ -0,0 +1,40 @@
+// Package analyze turns fetched market data + news into an investment-advice
+// report via Claude, using one of two interchangeable modes: "subscription"
+// (shells out to the `claude` CLI, billed against a Claude Pro/Max
+// subscription) or "api" (calls the Messages API directly, billed per token).
+package analyze
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/ytshih/stonks/internal/config"
+)
+
+// Analyzer sends a prompt to Claude and returns the response text.
+type Analyzer interface {
+	Analyze(ctx context.Context, prompt string) (string, error)
+}
+
+// Constructor builds an Analyzer from the analyzer config block.
+type Constructor func(cfg config.AnalyzerConfig) (Analyzer, error)
+
+var registry = map[string]Constructor{}
+
+// Register makes an analyzer constructor available under mode. Called from
+// each mode implementation's init().
+func Register(mode string, ctor Constructor) {
+	if _, exists := registry[mode]; exists {
+		panic(fmt.Sprintf("analyze: constructor already registered for mode %q", mode))
+	}
+	registry[mode] = ctor
+}
+
+// Build looks up the constructor for cfg.Mode and invokes it.
+func Build(cfg config.AnalyzerConfig) (Analyzer, error) {
+	ctor, ok := registry[cfg.Mode]
+	if !ok {
+		return nil, fmt.Errorf("analyze: no analyzer registered for mode %q", cfg.Mode)
+	}
+	return ctor(cfg)
+}