package main

import (
	"encoding/json"
	"fmt"
	"os"
)

type APIConfig struct {
	Key   string `json:"key"`
	Model string `json:"model"`
}

type Config struct {
	Port          int       `json:"port"`
	Mode          string    `json:"mode"`
	ProjectsPath  string    `json:"projects_path"`
	Username      string    `json:"username"`
	Password      string    `json:"password"`
	SessionSecret string    `json:"session_secret"`
	API           APIConfig `json:"api"`
}

func LoadConfig(path string) (*Config, error) {
	data, err := os.ReadFile(path)
	if err != nil {
		return nil, fmt.Errorf("reading config: %w", err)
	}

	var cfg Config
	if err := json.Unmarshal(data, &cfg); err != nil {
		return nil, fmt.Errorf("parsing config: %w", err)
	}

	if cfg.Port == 0 {
		cfg.Port = 9100
	}
	if cfg.Mode == "" {
		cfg.Mode = "cli"
	}
	if cfg.ProjectsPath == "" {
		cfg.ProjectsPath = "/root/projects"
	}
	if cfg.Username == "" {
		return nil, fmt.Errorf("username is required")
	}
	if cfg.Password == "" {
		return nil, fmt.Errorf("password is required")
	}
	if cfg.SessionSecret == "" {
		return nil, fmt.Errorf("session_secret is required")
	}

	return &cfg, nil
}