package fic

import (
	"fmt"
	"path"
	"strings"
)

var GlobalScoreCoefficient float64 = 1

// exportedExercice is a structure representing a challenge, as exposed to players.
type exportedExercice struct {
	Title    string   `json:"title"`
	Headline string   `json:"headline,omitempty"`
	URLId    string   `json:"urlid"`
	Tags     []string `json:"tags"`
	Gain     int64    `json:"gain"`
	Coeff    float64  `json:"curcoeff"`
	Solved   int64    `json:"solved"`
	Tried    int64    `json:"tried"`
}

// exportedTheme is a structure representing a Theme, as exposed to players.
type exportedTheme struct {
	Name         string                      `json:"name"`
	URLId        string                      `json:"urlid"`
	Authors      string                      `json:"authors"`
	Headline     string                      `json:"headline,omitempty"`
	Intro        string                      `json:"intro"`
	Image        string                      `json:"image,omitempty"`
	PartnerImage string                      `json:"partner_img,omitempty"`
	PartnerLink  string                      `json:"partner_href,omitempty"`
	PartnerText  string                      `json:"partner_txt,omitempty"`
	Exercices    map[string]exportedExercice `json:"exercices"`
}

// Exportedthemes exports themes from the database, to be displayed to players.
func ExportThemes() (interface{}, error) {
	if themes, err := GetThemes(); err != nil {
		return nil, err
	} else {
		ret := map[string]exportedTheme{}
		for _, theme := range themes {
			if exercices, err := theme.GetExercices(); err != nil {
				return nil, err
			} else {
				exos := map[string]exportedExercice{}
				for _, exercice := range exercices {
					tags, _ := exercice.GetTags()
					exos[fmt.Sprintf("%d", exercice.Id)] = exportedExercice{
						exercice.Title,
						exercice.Headline,
						exercice.URLId,
						tags,
						int64(float64(exercice.Gain) * GlobalScoreCoefficient),
						exercice.Coefficient,
						exercice.SolvedCount(),
						exercice.TriedTeamCount(),
					}
				}

				imgpath := ""
				if len(theme.Image) > 0 {
					imgpath = path.Join(FilesDir, theme.Image)
				}

				partnerImgpath := ""
				if len(theme.PartnerImage) > 0 {
					partnerImgpath = path.Join(FilesDir, theme.PartnerImage)
				}

				ret[fmt.Sprintf("%d", theme.Id)] = exportedTheme{
					theme.Name,
					theme.URLId,
					theme.Authors,
					theme.Headline,
					strings.Replace(theme.Intro, "$FILES$", FilesDir, -1),
					imgpath,
					partnerImgpath,
					theme.PartnerLink,
					theme.PartnerText,
					exos,
				}
			}
		}

		return ret, nil
	}
}