package app

import (
	"errors"
	"strings"

	"archi_folio/internal/store"
)

func validateContent(c store.SiteContent) error {
	switch {
	case c.HeroTitle == "":
		return errors.New("hero title is required")
	case c.HeroSubtitle == "":
		return errors.New("hero subtitle is required")
	case c.Positioning == "":
		return errors.New("positioning is required")
	case c.HeroCTALabel == "" || c.HeroCTAURL == "":
		return errors.New("primary hero CTA is required")
	case c.SecondaryCTALabel == "" || c.SecondaryCTAURL == "":
		return errors.New("secondary hero CTA is required")
	case c.IntroTitle == "":
		return errors.New("intro title is required")
	case c.IntroText == "":
		return errors.New("intro text is required")
	case c.ServiceOneTitle == "" || c.ServiceOneText == "" || c.ServiceTwoTitle == "" || c.ServiceTwoText == "" || c.ServiceThreeTitle == "" || c.ServiceThreeText == "":
		return errors.New("three service preview items are required")
	case c.ProcessOneTitle == "" || c.ProcessOneText == "" || c.ProcessTwoTitle == "" || c.ProcessTwoText == "" || c.ProcessThreeTitle == "" || c.ProcessThreeText == "":
		return errors.New("three process steps are required")
	case c.AboutName == "":
		return errors.New("about name is required")
	case c.AboutRole == "":
		return errors.New("about role is required")
	case c.AboutBio == "":
		return errors.New("about bio is required")
	case c.StudioPhilosophy == "":
		return errors.New("studio philosophy is required")
	case c.StudioApproach == "":
		return errors.New("studio approach is required")
	case c.StudioCredentials == "":
		return errors.New("studio credentials are required")
	case c.ServiceArea == "":
		return errors.New("service area is required")
	case c.HeroImage == "":
		return errors.New("hero image is required")
	case c.AboutImage == "":
		return errors.New("about image is required")
	default:
		return nil
	}
}

func validateContactDetails(c store.SiteContent) error {
	switch {
	case c.Email == "" || !strings.Contains(c.Email, "@"):
		return errors.New("valid email is required")
	case c.Phone == "":
		return errors.New("phone is required")
	case c.Location == "":
		return errors.New("location is required")
	default:
		return nil
	}
}

func validateContactRequest(r store.ContactRequest) error {
	switch {
	case r.Name == "":
		return errors.New("name is required")
	case r.Email == "" || !strings.Contains(r.Email, "@"):
		return errors.New("valid email is required")
	case r.ProjectType == "":
		return errors.New("project type is required")
	case r.ProjectLocation == "":
		return errors.New("project location is required")
	case r.BudgetRange == "":
		return errors.New("budget range is required")
	case r.Timeline == "":
		return errors.New("timeline is required")
	case r.Message == "":
		return errors.New("project message is required")
	case len(r.Name) > 120:
		return errors.New("name is too long")
	case len(r.Email) > 180:
		return errors.New("email is too long")
	case len(r.Phone) > 80:
		return errors.New("phone is too long")
	case len(r.ProjectType) > 120:
		return errors.New("project type is too long")
	case len(r.ProjectLocation) > 180:
		return errors.New("project location is too long")
	case len(r.BudgetRange) > 120:
		return errors.New("budget range is too long")
	case len(r.Timeline) > 120:
		return errors.New("timeline is too long")
	case len(r.Message) > 3000:
		return errors.New("project message is too long")
	default:
		return nil
	}
}

func validateProject(p store.Project) error {
	switch {
	case p.Slug == "":
		return errors.New("project slug is required")
	case p.Title == "":
		return errors.New("project title is required")
	case p.Location == "":
		return errors.New("project location is required")
	case p.Year == "":
		return errors.New("project year is required")
	case p.Category == "":
		return errors.New("project category is required")
	case p.Summary == "":
		return errors.New("project summary is required")
	case p.Scope == "":
		return errors.New("project scope is required")
	case p.Status == "":
		return errors.New("project status is required")
	case p.Description == "":
		return errors.New("project description is required")
	case p.CoverImage == "":
		return errors.New("project cover image is required")
	case len(p.Summary) > 500:
		return errors.New("project summary is too long")
	case len(p.Scope) > 240:
		return errors.New("project scope is too long")
	case len(p.Status) > 80:
		return errors.New("project status is too long")
	default:
		return nil
	}
}

func validateService(service store.Service) error {
	switch {
	case service.Title == "":
		return errors.New("service title is required")
	case service.Summary == "":
		return errors.New("service summary is required")
	case service.Details == "":
		return errors.New("service details are required")
	case len(service.Title) > 160:
		return errors.New("service title is too long")
	case len(service.Summary) > 500:
		return errors.New("service summary is too long")
	case len(service.Details) > 2000:
		return errors.New("service details are too long")
	default:
		return nil
	}
}

func validateFAQ(faq store.FAQ) error {
	switch {
	case faq.Question == "":
		return errors.New("FAQ question is required")
	case faq.Answer == "":
		return errors.New("FAQ answer is required")
	case len(faq.Question) > 240:
		return errors.New("FAQ question is too long")
	case len(faq.Answer) > 2000:
		return errors.New("FAQ answer is too long")
	default:
		return nil
	}
}