package templates

import (
	"fmt"

	"veola/internal/models"
)

type SettingsData struct {
	Page
	Values map[string]string
	// CredentialStatus maps each secret settings key to a human-readable
	// status ("Saved in settings", "Set in config.toml", "Not set"). Secret
	// values are never rendered into the form itself.
	CredentialStatus map[string]string
	IsAdmin          bool
	Users          []models.User
	TestNtfyOK     string
	TestApifyOK    string
	TestEbayOK     string
	EbayUsedToday  int
	EbayDailyLimit int
	PasswordMsg    string
	PasswordError  string
	UserMsg        string
	UserError      string
}

// EbayLimitReached reports whether eBay polling is currently halted because
// the daily call limit has been hit.
func (d SettingsData) EbayLimitReached() bool {
	return d.EbayDailyLimit > 0 && d.EbayUsedToday >= d.EbayDailyLimit
}

// credStatus renders the "Saved in settings / Set in config.toml / Not set"
// indicator for a secret field without ever printing the secret itself.
templ credStatus(d SettingsData, key string) {
	if s := d.CredentialStatus[key]; s != "" {
		<div class="v-muted text-xs mt-1">
			Status: { s }
		</div>
	}
}

templ settingsBody(d SettingsData) {
	<div class="space-y-8 max-w-3xl">
		<h1 class="text-3xl font-semibold">Settings</h1>

		<section class="v-card p-6">
			<h2 class="font-semibold mb-4">Apify, eBay and Ntfy</h2>
			<form method="post" action="/settings" class="space-y-4">
				@CSRFInput(d.CSRFToken)
				<div>
					<label class="v-label">Apify API Key</label>
					<input class="v-input font-mono" type="password" name="apify_api_key" autocomplete="off" placeholder="leave blank to keep current value"/>
					@credStatus(d, "apify_api_key")
				</div>
				<div class="border-t border-white/10 pt-4">
					<label class="v-label">eBay App ID (Client ID)</label>
					<input class="v-input font-mono" type="password" name="ebay_client_id" autocomplete="off" placeholder="used for eBay marketplaces instead of Apify"/>
					@credStatus(d, "ebay_client_id")
				</div>
				<div>
					<label class="v-label">eBay Cert ID (Client Secret)</label>
					<input class="v-input font-mono" type="password" name="ebay_client_secret" autocomplete="off" placeholder="leave blank to keep current value"/>
					@credStatus(d, "ebay_client_secret")
				</div>
				<div>
					<label class="v-label">eBay Daily Call Limit</label>
					<input class="v-input font-mono" name="ebay_daily_call_limit" type="number" value={ d.Values["ebay_daily_call_limit"] } placeholder="5000 (blank uses config default)"/>
				</div>
				<div class="text-sm">
					<span class="v-muted">eBay API calls today:</span>
					if d.EbayDailyLimit > 0 {
						<span class="font-mono">{ fmt.Sprintf("%d / %d", d.EbayUsedToday, d.EbayDailyLimit) }</span>
					} else {
						<span class="font-mono">{ fmt.Sprintf("%d (uncapped)", d.EbayUsedToday) }</span>
					}
					if d.EbayLimitReached() {
						<span class="v-flash-error inline-block ml-2">Limit reached. eBay polling halted until the next reset (midnight US Pacific).</span>
					}
				</div>
				<div class="border-t border-white/10 pt-4">
					<label class="v-label">Ntfy Base URL</label>
					<input class="v-input" name="ntfy_base_url" value={ d.Values["ntfy_base_url"] }/>
				</div>
				<div>
					<label class="v-label">Ntfy Default Topic</label>
					<input class="v-input" name="ntfy_default_topic" value={ d.Values["ntfy_default_topic"] }/>
				</div>
				<div>
					<label class="v-label">Ntfy Token</label>
					<input class="v-input font-mono" type="password" name="ntfy_token" autocomplete="off" placeholder="tk_... (leave blank to keep current value)"/>
					@credStatus(d, "ntfy_token")
				</div>
				<div>
					<label class="v-label">Global Poll Interval (minutes)</label>
					<input class="v-input font-mono" name="global_poll_interval_minutes" type="number" value={ d.Values["global_poll_interval_minutes"] }/>
				</div>
				<div>
					<label class="v-label">Match Confidence Threshold</label>
					<input class="v-input font-mono" name="match_confidence_threshold" type="number" min="0" max="1" step="0.05" value={ d.Values["match_confidence_threshold"] }/>
				</div>
				if !d.IsAdmin {
					<div class="v-muted text-sm">Read-only for non-admin users.</div>
				} else {
					<div class="flex items-center gap-3 pt-1">
						<button class="v-btn" type="submit">Save</button>
						<button class="v-btn-ghost" type="submit" formaction="/settings/test-ntfy">Test Ntfy</button>
						<button class="v-btn-ghost" type="submit" formaction="/settings/test-apify">Test Apify</button>
						<button class="v-btn-ghost" type="submit" formaction="/settings/test-ebay">Test eBay</button>
					</div>
				}
			</form>
			if d.TestNtfyOK != "" {
				<div class="v-flash mt-3">{ d.TestNtfyOK }</div>
			}
			if d.TestApifyOK != "" {
				<div class="v-flash mt-3">{ d.TestApifyOK }</div>
			}
			if d.TestEbayOK != "" {
				<div class="v-flash mt-3">{ d.TestEbayOK }</div>
			}
		</section>

		<section class="v-card p-6">
			<h2 class="font-semibold mb-4">Change Password</h2>
			if d.PasswordError != "" {
				<div class="v-flash-error">{ d.PasswordError }</div>
			}
			if d.PasswordMsg != "" {
				<div class="v-flash">{ d.PasswordMsg }</div>
			}
			<form method="post" action="/settings/password" class="space-y-4">
				@CSRFInput(d.CSRFToken)
				<div>
					<label class="v-label">Current Password</label>
					<input class="v-input" type="password" name="current_password"/>
				</div>
				<div>
					<label class="v-label">New Password</label>
					<input class="v-input" type="password" name="new_password"/>
				</div>
				<div>
					<label class="v-label">Confirm New Password</label>
					<input class="v-input" type="password" name="new_password_confirm"/>
				</div>
				<button class="v-btn" type="submit">Update Password</button>
			</form>
		</section>

		if d.IsAdmin {
			<section class="v-card p-6">
				<h2 class="font-semibold mb-4">Users</h2>
				if d.UserError != "" {
					<div class="v-flash-error">{ d.UserError }</div>
				}
				if d.UserMsg != "" {
					<div class="v-flash">{ d.UserMsg }</div>
				}
				<table class="v-table mb-4">
					<thead><tr><th>Username</th><th>Role</th><th>Created</th><th></th></tr></thead>
					<tbody>
						for _, u := range d.Users {
							<tr>
								<td>{ u.Username }</td>
								<td class="v-muted">{ string(u.Role) }</td>
								<td class="v-muted text-sm">{ u.CreatedAt.Format("2006-01-02") }</td>
								<td class="text-right">
									<form class="inline" method="post" action={ templ.SafeURL(fmt.Sprintf("/users/%d/reset-password", u.ID)) }>
										<input type="hidden" name="csrf_token" value={ d.CSRFToken }/>
										<input type="password" class="v-input inline-block max-w-[140px]" name="new_password" placeholder="new password"/>
										<button class="v-btn-ghost" type="submit">Reset</button>
									</form>
									<form class="inline" method="post" action={ templ.SafeURL(fmt.Sprintf("/users/%d/delete", u.ID)) } onsubmit="return confirm('Remove user?')">
										<input type="hidden" name="csrf_token" value={ d.CSRFToken }/>
										<button class="v-btn-ghost" type="submit">Remove</button>
									</form>
								</td>
							</tr>
						}
					</tbody>
				</table>
				<form method="post" action="/users" class="grid md:grid-cols-4 gap-3 items-end">
					<input type="hidden" name="csrf_token" value={ d.CSRFToken }/>
					<div>
						<label class="v-label">Username</label>
						<input class="v-input" name="username"/>
					</div>
					<div>
						<label class="v-label">Role</label>
						<select class="v-select" name="role">
							<option value="user">user</option>
							<option value="admin">admin</option>
						</select>
					</div>
					<div>
						<label class="v-label">Initial Password</label>
						<input class="v-input" type="password" name="password"/>
					</div>
					<button class="v-btn" type="submit">Add User</button>
				</form>
			</section>
		}
	</div>
}

templ Settings(d SettingsData) {
	@Layout(d.Page, settingsBody(d))
}