package config

import (
	"fmt"
	"os"
	"html/template"
	"strings"

	"gopkg.in/yaml.v3"
)

type Config struct {
	Repo struct {
		ScanPath   string   `yaml:"scanPath"`
		Readme     []string `yaml:"readme"`
		MainBranch []string `yaml:"mainBranch"`
		Ignore     []string `yaml:"ignore,omitempty"`
	} `yaml:"repo"`
	Dirs struct {
		Templates string `yaml:"templates"`
		Static    string `yaml:"static"`
	} `yaml:"dirs"`
	Meta struct {
		Title       string `yaml:"title"`
		Description string `yaml:"description"`
		Footer string `yaml:"footer,omitempty"`
		MaintainerEmail string `yaml:"maintainerEmail,omitempty"`
		CompiledFooter template.HTML `yaml:"thisIsNotSupposedToBeHere,omitempty"`
	} `yaml:"meta"`
	Server struct {
		Name string `yaml:"name,omitempty"`
		Host string `yaml:"host"`
		Port int    `yaml:"port"`
	} `yaml:"server"`
}

func compileFooter(c *Config, version string) {
  if c.Meta.Footer != "" {
    c.Meta.CompiledFooter = template.HTML(
      strings.ReplaceAll(
        strings.ReplaceAll(
          c.Meta.Footer,
          "VERSION",
          version),
        "MAINTAINER",
        fmt.Sprintf(
          "<a href='mailto:%s'>%s</a>",
          c.Meta.MaintainerEmail,
          c.Meta.MaintainerEmail)))
  }
}

func Read(f, v string) (*Config, error) {
	b, err := os.ReadFile(f)
	if err != nil {
		return nil, fmt.Errorf("reading config: %w", err)
	}

	c := Config{}
	if err := yaml.Unmarshal(b, &c); err != nil {
		return nil, fmt.Errorf("parsing config: %w", err)
	}
	
	compileFooter(&c, v)

	return &c, nil
}