feat: home page

feat: my random fact giver for a home page
feat: stricter cors policy
refactor: move lightlibrary css onto my bucket

9 files changed, 108 insertions, 12 deletions

diff --git a/internal/factgiver/factgiver.go b/internal/factgiver/factgiver.go
new file mode 100644
index 0000000..6f77403
--- /dev/null
+++ b/internal/factgiver/factgiver.go
@@ -0,0 +1,67 @@
+package factgiver
+
+import (
+	"fmt"
+	"math/rand"
+	"regexp"
+	"strings"
+	"time"
+
+	"github.com/SayaAndy/saya-today-web/config"
+	"github.com/SayaAndy/saya-today-web/internal/b2"
+)
+
+type FactGiver struct {
+	b2Client      *b2.B2Client
+	cache         map[string][]string
+	langs         []string
+	factsFileName string
+	nlRe          *regexp.Regexp
+	randGen       *rand.Rand
+}
+
+func NewFactGiver(cfg *config.FactGiverConfig, langs []string) (*FactGiver, error) {
+	b2Client, err := b2.NewB2Client(&cfg.Storage.Config)
+	if err != nil {
+		return nil, fmt.Errorf("fail to init b2 client for a new fact giver: %s", err.Error())
+	}
+
+	factGiver := &FactGiver{
+		b2Client:      b2Client,
+		cache:         make(map[string][]string, len(langs)),
+		langs:         langs,
+		factsFileName: cfg.FactsFileName,
+		nlRe:          regexp.MustCompile(`\r?\n`),
+		randGen:       rand.New(rand.NewSource(time.Now().UnixNano())),
+	}
+	if err = factGiver.initCache(); err != nil {
+		return nil, fmt.Errorf("fail to init cache for a new fact giver: %s", err.Error())
+	}
+
+	return factGiver, nil
+}
+
+func (g *FactGiver) Give(lang string) [3]string {
+	factSlice := make([]string, len(g.cache[lang]))
+	copy(factSlice, g.cache[lang])
+	g.randGen.Shuffle(len(factSlice), func(i, j int) {
+		factSlice[i], factSlice[j] = factSlice[j], factSlice[i]
+	})
+	return [3]string{factSlice[0], factSlice[1], factSlice[2]}
+}
+
+func (g *FactGiver) initCache() error {
+	for _, lang := range g.langs {
+		localFacts := strings.Replace(g.factsFileName, "*", lang, 1)
+		factsContentBytes, err := g.b2Client.ReadAll(localFacts)
+		if err != nil {
+			return fmt.Errorf("fail to read '%s' facts file: %s", lang, err.Error())
+		}
+		factsContent := string(factsContentBytes)
+		g.cache[lang] = g.nlRe.Split(factsContent, -1)
+		if g.cache[lang][len(g.cache[lang])-1] == "" {
+			g.cache[lang] = g.cache[lang][:len(g.cache[lang])-1]
+		}
+	}
+	return nil
+}
diff --git a/internal/frontmatter/parser.go b/internal/frontmatter/parser.go
index 1a521c0..83312dc 100644
--- a/internal/frontmatter/parser.go
+++ b/internal/frontmatter/parser.go
@@ -16,6 +16,8 @@ type Metadata struct {
 	Thumbnail        string    `yaml:"thumbnail"`
 	Tags             []string  `yaml:"tags"`
 	Geolocation      string    `yaml:"geolocation"`
+	Medley           string    `yaml:"medley"`
+	MedleyPart       int       `yaml:"medleyPart"`
 }
 
 func ParseFrontmatter(content []byte) (metadata *Metadata, markdown []byte, err error) {
diff --git a/internal/router/api-v1-general-page-body.go b/internal/router/api-v1-general-page-body.go
index cdb558a..f27e0c0 100644
--- a/internal/router/api-v1-general-page-body.go
+++ b/internal/router/api-v1-general-page-body.go
@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"html/template"
 	"log/slog"
+	"math/rand"
 	"net/url"
 	"regexp"
 	"slices"
@@ -11,11 +12,14 @@ import (
 	"time"
 
 	"github.com/SayaAndy/saya-today-web/internal/b2"
+	"github.com/SayaAndy/saya-today-web/internal/factgiver"
 	"github.com/SayaAndy/saya-today-web/locale"
 	"github.com/gofiber/fiber/v2"
 	"github.com/yuin/goldmark"
 )
 
+var FactGiver *factgiver.FactGiver
+
 func init() {
 	tm.Add("general-page-body", "views/partials/general-page-body.html")
 }
@@ -42,7 +46,7 @@ func Api_V1_GeneralPage_Body(l map[string]*locale.LocaleConfig, langs []string,
 		}
 
 		pathParts := strings.Split(strings.Trim(path, "/"), "/")
-		if len(pathParts) < 2 {
+		if len(pathParts) == 0 {
 			return c.Status(fiber.ErrBadRequest.Code).SendString("'Referer' header is invalid: expect format '/{lang}/...'")
 		}
 
@@ -134,6 +138,13 @@ func Api_V1_GeneralPage_Body(l map[string]*locale.LocaleConfig, langs []string,
 			values["ParsedMarkdown"] = template.HTML(parsedMarkdown)
 
 			additionalTemplates = append(additionalTemplates, "views/pages/blog-page.html")
+		} else if len(pathParts) == 1 {
+			values["Title"] = l[lang].HomePage.Header
+			values["FilledHeartCount"] = uint(40)
+			values["OutlineHeartCount"] = uint(40)
+			values["GifName"] = fmt.Sprintf("otter-%d.gif", rand.Int()%3+1)
+			values["FunFacts"] = FactGiver.Give(lang)
+			additionalTemplates = append(additionalTemplates, "views/pages/home-page.html")
 		}
 
 		content, err := tm.Render("general-page-body", values, additionalTemplates...)
diff --git a/internal/router/api-v1-general-page-bottom-embeds.go b/internal/router/api-v1-general-page-bottom-embeds.go
index df766a7..c4d9543 100644
--- a/internal/router/api-v1-general-page-bottom-embeds.go
+++ b/internal/router/api-v1-general-page-bottom-embeds.go
@@ -38,7 +38,7 @@ func Api_V1_GeneralPage_BottomEmbeds(l map[string]*locale.LocaleConfig, langs []
 		}
 
 		pathParts := strings.Split(strings.Trim(path, "/"), "/")
-		if len(pathParts) < 2 {
+		if len(pathParts) == 0 {
 			return c.Status(fiber.ErrBadRequest.Code).SendString("'Referer' header is invalid: expect format '/{lang}/...'")
 		}
 
@@ -58,6 +58,8 @@ func Api_V1_GeneralPage_BottomEmbeds(l map[string]*locale.LocaleConfig, langs []
 			additionalTemplates = append(additionalTemplates, "views/pages/blog-catalogue.html")
 		} else if len(pathParts) == 3 && pathParts[1] == "blog" {
 			additionalTemplates = append(additionalTemplates, "views/pages/blog-page.html")
+		} else if len(pathParts) == 1 {
+			additionalTemplates = append(additionalTemplates, "views/pages/home-page.html")
 		}
 
 		content, err := tm.Render("general-page-bottom-embeds", values, additionalTemplates...)
diff --git a/internal/router/api-v1-general-page-footer.go b/internal/router/api-v1-general-page-footer.go
index 98da6bb..003f54c 100644
--- a/internal/router/api-v1-general-page-footer.go
+++ b/internal/router/api-v1-general-page-footer.go
@@ -38,7 +38,7 @@ func Api_V1_GeneralPage_Footer(l map[string]*locale.LocaleConfig, langs []string
 		}
 
 		pathParts := strings.Split(strings.Trim(path, "/"), "/")
-		if len(pathParts) < 2 {
+		if len(pathParts) == 0 {
 			return c.Status(fiber.ErrBadRequest.Code).SendString("'Referer' header is invalid: expect format '/{lang}/...'")
 		}
 
@@ -58,6 +58,8 @@ func Api_V1_GeneralPage_Footer(l map[string]*locale.LocaleConfig, langs []string
 			additionalTemplates = append(additionalTemplates, "views/pages/blog-catalogue.html")
 		} else if len(pathParts) == 3 && pathParts[1] == "blog" {
 			additionalTemplates = append(additionalTemplates, "views/pages/blog-page.html")
+		} else if len(pathParts) == 1 {
+			additionalTemplates = append(additionalTemplates, "views/pages/home-page.html")
 		}
 
 		content, err := tm.Render("general-page-footer", values, additionalTemplates...)
diff --git a/internal/router/api-v1-general-page-header.go b/internal/router/api-v1-general-page-header.go
index 1d65966..80228f7 100644
--- a/internal/router/api-v1-general-page-header.go
+++ b/internal/router/api-v1-general-page-header.go
@@ -39,7 +39,7 @@ func Api_V1_GeneralPage_Header(l map[string]*locale.LocaleConfig, langs []string
 		}
 
 		pathParts := strings.Split(strings.Trim(path, "/"), "/")
-		if len(pathParts) < 2 {
+		if len(pathParts) == 0 {
 			return c.Status(fiber.ErrBadRequest.Code).SendString("'Referer' header is invalid: expect format '/{lang}/...'")
 		}
 
@@ -67,6 +67,9 @@ func Api_V1_GeneralPage_Header(l map[string]*locale.LocaleConfig, langs []string
 			values["PublishedDate"] = metadata.PublishedTime.Format("2006-01-02 15:04:05 -07:00")
 			values["ActionDate"] = metadata.ActionDate
 			additionalTemplates = append(additionalTemplates, "views/pages/blog-page.html")
+		} else if len(pathParts) == 1 {
+			values["Title"] = l[lang].HomePage.Header
+			additionalTemplates = append(additionalTemplates, "views/pages/home-page.html")
 		}
 
 		content, err := tm.Render("general-page-header", values, additionalTemplates...)
diff --git a/internal/router/api-v1-general-page-top-embeds.go b/internal/router/api-v1-general-page-top-embeds.go
index b26675f..78021b2 100644
--- a/internal/router/api-v1-general-page-top-embeds.go
+++ b/internal/router/api-v1-general-page-top-embeds.go
@@ -38,7 +38,7 @@ func Api_V1_GeneralPage_TopEmbeds(l map[string]*locale.LocaleConfig, langs []str
 		}
 
 		pathParts := strings.Split(strings.Trim(path, "/"), "/")
-		if len(pathParts) < 2 {
+		if len(pathParts) == 0 {
 			return c.Status(fiber.ErrBadRequest.Code).SendString("'Referer' header is invalid: expect format '/{lang}/...'")
 		}
 
@@ -58,6 +58,8 @@ func Api_V1_GeneralPage_TopEmbeds(l map[string]*locale.LocaleConfig, langs []str
 			additionalTemplates = append(additionalTemplates, "views/pages/blog-catalogue.html")
 		} else if len(pathParts) == 3 && pathParts[1] == "blog" {
 			additionalTemplates = append(additionalTemplates, "views/pages/blog-page.html")
+		} else if len(pathParts) == 1 {
+			additionalTemplates = append(additionalTemplates, "views/pages/home-page.html")
 		}
 
 		content, err := tm.Render("general-page-top-embeds", values, additionalTemplates...)
diff --git a/internal/router/api-v1-general-page.go b/internal/router/api-v1-general-page.go
index 8e1387b..d0ea559 100644
--- a/internal/router/api-v1-general-page.go
+++ b/internal/router/api-v1-general-page.go
@@ -20,7 +20,7 @@ func Api_V1_GeneralPage(l map[string]*locale.LocaleConfig, langs []string) func(
 		path := c.Path()
 
 		pathParts := strings.Split(strings.Trim(path, "/"), "/")
-		if len(pathParts) < 2 {
+		if len(pathParts) == 0 {
 			return c.Status(fiber.ErrBadRequest.Code).SendString("url path is invalid: expect format '/{lang}/...'")
 		}
 
diff --git a/internal/templatemanager/templatemanager.go b/internal/templatemanager/templatemanager.go
index d8adab6..4bf9a49 100644
--- a/internal/templatemanager/templatemanager.go
+++ b/internal/templatemanager/templatemanager.go
@@ -22,13 +22,22 @@ type TemplateManagerTemplates struct {
 	Files []string
 }
 
+var templateFuncMap = template.FuncMap{
+	"contains": strings.Contains,
+	"iterate": func(count uint) []uint {
+		items := make([]uint, count)
+		for i := range count {
+			items[i] = i
+		}
+		return items
+	},
+}
+
 func NewTemplateManager(templates ...TemplateManagerTemplates) (*TemplateManager, error) {
 	templateMap := make(map[string]templateManagerRender)
 
 	for _, tmplStruct := range templates {
-		tmpl := template.New("").Funcs(template.FuncMap{
-			"contains": strings.Contains,
-		})
+		tmpl := template.New("").Funcs(templateFuncMap)
 		tmpl, err := tmpl.ParseFiles(tmplStruct.Files...)
 		if err != nil {
 			return nil, err
@@ -75,9 +84,7 @@ func (tm *TemplateManager) Add(name string, files ...string) error {
 		return fmt.Errorf("you can't add template without any files")
 	}
 
-	tmpl := template.New("").Funcs(template.FuncMap{
-		"contains": strings.Contains,
-	})
+	tmpl := template.New("").Funcs(templateFuncMap)
 
 	tmpl, err := tmpl.ParseFiles(files...)
 	if err != nil {