From a62de999ea821e4d3e4a9b656bf66577f3cffc5e Mon Sep 17 00:00:00 2001
From: Kistaro Windrider <kistaro@gmail.com>
Date: Sun, 2 Apr 2023 00:20:37 -0700
Subject: [PATCH] Panel display, MultiMessage.

---
 cardsim/messages.go   | 21 ++++++++++++++++++++-
 cardsim/terminalui.go | 24 +++++++++++++++++++++++-
 2 files changed, 43 insertions(+), 2 deletions(-)

diff --git a/cardsim/messages.go b/cardsim/messages.go
index acb0a6a..456c60a 100644
--- a/cardsim/messages.go
+++ b/cardsim/messages.go
@@ -1,6 +1,9 @@
 package cardsim
 
-import "fmt"
+import (
+	"fmt"
+	"strings"
+)
 
 // Message is an opaque interface representing a displayable message.
 // Using an interface here allows for implementation of new message display
@@ -56,3 +59,19 @@ func IsSpecialMessage(m Message, s *SpecialMessage) bool {
 	}
 	return false
 }
+
+// MultiMessage is a sequence of messages treated like one message.
+type MultiMessage []Message
+
+func (m MultiMessage) String() string {
+	s := make([]string, len(m))
+	for i, msg := range m {
+		if msg == nil {
+			s[i] = ""
+			continue
+		}
+		s[i] = msg.String()
+		continue
+	}
+	return strings.Join(s, "\n")
+}
diff --git a/cardsim/terminalui.go b/cardsim/terminalui.go
index 0a7e19f..22e3e79 100644
--- a/cardsim/terminalui.go
+++ b/cardsim/terminalui.go
@@ -63,7 +63,7 @@ func pickNextAction[C StatsCollection](p *Player[C]) (isCard bool, cardIdx int,
 	if needsDivider {
 		divider()
 	}
-	displayPrompt(p)
+	displayOnePanel(p, p.Prompt)
 	actionsOffset := displayStatsMenu(p)
 	handOffset := displayPermanentActionsMenu(p, actionsOffset)
 	max := displayHandMenu(p, handOffset)
@@ -143,3 +143,25 @@ func confirmQuit() {
 		os.Exit(0)
 	}
 }
+
+func displayOnePanel[C StatsCollection](p *Player[C], panel InfoPanel[C]) error {
+	var errs ErrorCollector
+	t, err := panel.Title(p)
+	if IsSeriousError(err) {
+		return err
+	}
+	errs.Add(err)
+	ts := t.String()
+	if len(ts) > 0 {
+		fmt.Println(ts)
+		fmt.Println(strings.Repeat("-", len(ts)))
+		fmt.Println()
+	}
+	m, err := panel.Info(p)
+	errs.Add(err)
+	if IsSeriousError(err) {
+		return errs.Emit()
+	}
+	displayAndWait(MultiMessage(m))
+	return errs.Emit()
+}