// Command server starts the 愈心谷 HTTP API.
package main

import (
	"context"
	"log"
	"os"
	"path/filepath"
	"time"

	"github.com/gin-gonic/gin"

	"github.com/yuxingu/digital-psychology/apps/api/internal/config"
	"github.com/yuxingu/digital-psychology/apps/api/internal/db"
	"github.com/yuxingu/digital-psychology/apps/api/internal/handler"
	"github.com/yuxingu/digital-psychology/apps/api/internal/middleware"
	"github.com/yuxingu/digital-psychology/apps/api/internal/repository"
	"github.com/yuxingu/digital-psychology/apps/api/internal/service/profile"
	"github.com/yuxingu/digital-psychology/apps/api/internal/service/report"
	"github.com/yuxingu/digital-psychology/apps/api/pkg/response"
)

func main() {
	cfg := config.Load()
	if cfg.AppEnv == "prod" {
		gin.SetMode(gin.ReleaseMode)
	}

	ctx, cancel := context.WithTimeout(context.Background(), 15*time.Second)
	defer cancel()

	pool, err := db.Connect(ctx, cfg.DatabaseURL)
	if err != nil {
		log.Printf("database unavailable: %v", err)
		log.Printf("hint: docker compose -f deploy/docker-compose.yml up -d")
		os.Exit(1)
	}
	defer pool.Close()

	migDir := os.Getenv("MIGRATIONS_DIR")
	if migDir == "" {
		migDir = filepath.Join("migrations")
	}
	if err := db.Migrate(ctx, pool, migDir); err != nil {
		log.Printf("migrate: %v", err)
		os.Exit(1)
	}

	profileSvc := &profile.Service{Repo: &repository.ProfileRepo{Pool: pool}}
	reportSvc := &report.Service{
		Profiles: &repository.ProfileRepo{Pool: pool},
		Reports:  &repository.ReportRepo{Pool: pool},
	}

	r := gin.New()
	r.Use(gin.Recovery(), gin.Logger(), middleware.RequestID())
	r.Use(func(c *gin.Context) {
		c.Header("Access-Control-Expose-Headers", "X-Device-Key, X-Request-Id")
		c.Next()
	})

	api := r.Group("/api/v1")
	handler.NewHealthHandler().Register(api)
	api.GET("/ping", func(c *gin.Context) {
		response.OK(c, gin.H{"pong": true})
	})

	authed := api.Group("")
	authed.Use(middleware.DeviceAuth(pool))
	(&handler.ProfileHandler{Svc: profileSvc}).Register(authed)
	(&handler.ReportHandler{Svc: reportSvc}).Register(authed)

	log.Printf("yuxingu api listening on %s env=%s", cfg.HTTPAddr, cfg.AppEnv)
	if err := r.Run(cfg.HTTPAddr); err != nil {
		log.Printf("server stopped: %v", err)
		os.Exit(1)
	}
}