package main

import (
	"os"
	"strings"
	"text/template"

	"git.sr.ht/~adnano/go-ini"
)

// Config contains site configuration.
type Config struct {
	Title     string            // site title
	URLs      []string          // site URLs
	Feeds     map[string]string // site feeds
	Templates *Templates        // site templates
}

// NewConfig returns a new configuration.
func NewConfig() *Config {
	return &Config{
		Feeds: map[string]string{},
	}
}

// Load loads the configuration from the provided path.
func (c *Config) Load(path string) error {
	f, err := os.Open(path)
	if err != nil {
		return err
	}

	// Load config
	return ini.Parse(f, func(section, key, value string) {
		switch section {
		case "":
			switch key {
			case "title":
				c.Title = value
			case "urls":
				c.URLs = strings.Fields(value)
			}
		case "feeds":
			c.Feeds[key] = value
		}
	})
}

// LoadTemplates loads templates from the provided path.
func (c *Config) LoadTemplates(path string) error {
	// Site contains site metadata passed to templates
	type Site struct {
		Title string
		URLs  []string
	}

	// Load templates
	c.Templates = NewTemplates()
	c.Templates.Funcs(template.FuncMap{
		"site": func() Site {
			return Site{
				Title: c.Title,
				URLs:  c.URLs,
			}
		},
	})
	c.Templates.LoadDefault()
	return c.Templates.Load(path)
}