Initial import with modified Dockerfile for env-based config generation

internal/config/config.go

@@ -0,0 +1,100 @@
+package config
+
+import (
+	"fmt"
+	"os"
+	"time"
+
+	"gopkg.in/yaml.v3"
+)
+
+// Config holds all configuration for the application
+type Config struct {
+	Server       ServerConfig       `yaml:"server"`
+	Identity     IdentityConfig     `yaml:"identity"`
+	Notification NotificationConfig `yaml:"notification"`
+	Database     DatabaseConfig     `yaml:"database"`
+	Rules        RulesConfig        `yaml:"rules"`
+}
+
+type ServerConfig struct {
+	Port          int    `yaml:"port"`
+	WebhookSecret string `yaml:"webhook_secret"`
+}
+
+type IdentityConfig struct {
+	Provider string        `yaml:"provider"`
+	CacheTTL time.Duration `yaml:"cache_ttl"`
+	Gitea    GiteaConfig   `yaml:"gitea"`
+}
+
+type GiteaConfig struct {
+	URL   string `yaml:"url"`
+	Token string `yaml:"token"`
+}
+
+type NotificationConfig struct {
+	Provider string      `yaml:"provider"`
+	Slack    SlackConfig `yaml:"slack"`
+}
+
+type SlackConfig struct {
+	BotToken       string `yaml:"bot_token"`
+	DefaultChannel string `yaml:"default_channel"`
+}
+
+type DatabaseConfig struct {
+	Driver string `yaml:"driver"`
+	DSN    string `yaml:"dsn"`
+}
+
+type RulesConfig struct {
+	PR      PRRules      `yaml:"pr"`
+	Issue   IssueRules   `yaml:"issue"`
+	Comment CommentRules `yaml:"comment"`
+}
+
+type PRRules struct {
+	NotifyOwner     bool `yaml:"notify_owner"`
+	NotifyReviewers bool `yaml:"notify_reviewers"`
+	NotifyAssignees bool `yaml:"notify_assignees"`
+}
+
+type IssueRules struct {
+	NotifyAssignees bool `yaml:"notify_assignees"`
+}
+
+type CommentRules struct {
+	NotifyMentioned   bool `yaml:"notify_mentioned"`
+	NotifyThreadOwner bool `yaml:"notify_thread_owner"`
+	NotifyReviewers   bool `yaml:"notify_reviewers"`
+}
+
+// Load reads configuration from a YAML file
+func Load(path string) (*Config, error) {
+	data, err := os.ReadFile(path)
+	if err != nil {
+		return nil, fmt.Errorf("reading config file: %w", err)
+	}
+
+	// Expand environment variables
+	data = []byte(os.ExpandEnv(string(data)))
+
+	var cfg Config
+	if err := yaml.Unmarshal(data, &cfg); err != nil {
+		return nil, fmt.Errorf("parsing config file: %w", err)
+	}
+
+	// Set defaults
+	if cfg.Server.Port == 0 {
+		cfg.Server.Port = 8080
+	}
+	if cfg.Identity.CacheTTL == 0 {
+		cfg.Identity.CacheTTL = 24 * time.Hour
+	}
+	if cfg.Database.Driver == "" {
+		cfg.Database.Driver = "sqlite"
+	}
+
+	return &cfg, nil
+}