package app

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

	tea "charm.land/bubbletea/v2"
	"github.com/anotherhadi/spilltea/internal/config"
	"github.com/anotherhadi/spilltea/internal/db"
	"github.com/anotherhadi/spilltea/internal/intercept"
	"github.com/anotherhadi/spilltea/internal/plugins"
	proxyPkg "github.com/anotherhadi/spilltea/internal/proxy"
	copyUI "github.com/anotherhadi/spilltea/internal/ui/components/copy"
	copyasUI "github.com/anotherhadi/spilltea/internal/ui/components/copyas"
	notificationsUI "github.com/anotherhadi/spilltea/internal/ui/components/notifications"
	diffUI "github.com/anotherhadi/spilltea/internal/ui/diff"
	docsUI "github.com/anotherhadi/spilltea/internal/ui/docs"
	findingsUI "github.com/anotherhadi/spilltea/internal/ui/findings"
	historyUI "github.com/anotherhadi/spilltea/internal/ui/history"
	interceptUI "github.com/anotherhadi/spilltea/internal/ui/intercept"
	pluginsUI "github.com/anotherhadi/spilltea/internal/ui/plugins"
	replayUI "github.com/anotherhadi/spilltea/internal/ui/replay"
	"github.com/sirupsen/logrus"
)

const tickInterval = 2 * time.Second

type tickMsg struct{}

func tickCmd() tea.Cmd {
	return func() tea.Msg {
		time.Sleep(tickInterval)
		return tickMsg{}
	}
}

var sidebarEntries = pageRegistry

var pageShortcuts = func() map[string]page {
	m := make(map[string]page, len(sidebarEntries))
	for i, e := range sidebarEntries {
		m[strconv.Itoa(i+1)] = e.id
	}
	return m
}()

type Model struct {
	broker        *intercept.Broker
	page          page
	projectName   string
	projectPath   string
	database      *db.DB
	logFile       *os.File
	pluginManager *plugins.Manager

	width         int
	height        int
	sidebarState  sidebarState
	intercept     interceptUI.Model
	history       historyUI.Model
	replay        replayUI.Model
	diff          diffUI.Model
	docs          docsUI.Model
	pluginsPage   pluginsUI.Model
	findingsPage  findingsUI.Model
	copyAs        copyasUI.Model
	copy          copyUI.Model
	notifications notificationsUI.Model
}

func New(broker *intercept.Broker, name, path string) Model {
	cfg := config.Global
	mgr := plugins.NewManager(broker)

	m := Model{
		broker:        broker,
		page:          pageIntercept,
		projectName:   name,
		projectPath:   path,
		pluginManager: mgr,
		intercept:     interceptUI.New(broker),
		history:       historyUI.New(),
		replay:        replayUI.New(),
		diff:          diffUI.New(),
		docs:          docsUI.New(),
		pluginsPage:   pluginsUI.New(mgr),
		findingsPage:  findingsUI.New(),
		copyAs:        copyasUI.New(),
		copy:          copyUI.New(),
		notifications: notificationsUI.New(),
		sidebarState:  sidebarState(cfg.TUI.DefaultSidebarState),
	}

	if d, err := db.Open(path); err == nil {
		m.database = d
		broker.SetDB(d)
		m.history.SetDB(d)
		m.replay.SetDB(d)
		m.findingsPage.SetDB(d)
		mgr.SetDB(d)
	}

	pluginsDir := config.ExpandPath(cfg.App.PluginsDir)
	if err := mgr.LoadFromDir(pluginsDir); err != nil {
		log.Printf("plugins: %v", err)
	}
	m.pluginsPage.Refresh()

	if lf, err := os.OpenFile(filepath.Join(filepath.Dir(path), "logs.log"), os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0o600); err == nil {
		m.logFile = lf
		log.SetOutput(lf)
		logrus.SetOutput(lf)
	}

	return m
}

func (m Model) Init() tea.Cmd {
	mgr := m.pluginManager
	return tea.Batch(
		intercept.WaitForRequest(m.broker),
		intercept.WaitForResponse(m.broker),
		tickCmd(),
		proxyPkg.StartCmd(m.broker, mgr),
		plugins.WaitForNotif(mgr),
		plugins.WaitForQuit(mgr),
		findingsUI.RefreshCmd(m.database),
		func() tea.Msg { mgr.RunOnStart(); return nil },
	)
}